Instructors
Simon Rubinstein-Salzedo is the founder and one of the instructors at Euler Circle. Simon received his PhD at Stanford University in 2012 under the direction of Akshay Venkatesh in algebraic number theory. He has done research in many areas of mathematics, including number theory, algebraic geometry, combinatorics, game theory, probability, and complex analysis. Before founding Euler Circle, Simon taught mathematics at Stanford University and Dartmouth College.
In addition to his teaching at universities, Simon has been teaching mathematics to advanced middle-school and high-school students for over a decade and is extremely popular among his students. He is currently the lecturer for Program II at the Stanford University Mathematics Camp (SUMaC), where he teaches algebraic topology. He has worked at The Art of Problem Solving and has taught at many math events and run many math circles in the Bay Area. He is also the coach of the San Francisco Bay Area ARML team, which won the national championship for three consecutive years. His greatest claim to fame in life is probably having a factoring trick named after him.
Simon has also successfully directed mathematics research projects for high-school students, leading to five original papers coauthored with students so far, and more projects are currently in progress. His papers can be found on his website. Please contact him at simon@eulercircle.com.
Outside of mathematics, Simon is also an avid musician, chess player, and calligrapher.
Eric Hallman received his PhD from UC Berkeley in 2019 in computational linear algebra. He has taught classes at UC Berkeley and North Carolina State University, and was most recently a software engineer at Google. Outside of math, he enjoys swimming and baking.
Maxim Gilula received his undergraduate degree at UC Irvine before moving to Philadelphia for grad school in math at UPenn. His research included infinite series, oscillatory integrals, and decoupling. After working as a visiting assistant professor at Michigan State University, he made his way back home to the Bay Area to join Stanford OHS.
He likes to play tennis and video games.
Teaching Assistants
Aaron Kaufer is a junior at Stanford studying mathematics and computer science. He is interested in algebra and number theory. He loves tutoring and works as a peer tutor for Stanford’s math department. He has done research in commutative algebra and written a paper and given a talk on his results. Outside of math, he likes archery and Rubik’s cubes.
Aaron Lin is a recent graduate from MIT in math and computer science, and is especially interested in topics surrounding topology, combinatorics, and computational complexity theory. He is always looking for new books to read, puzzle games, and someone to play Go (Weiqi) with.
Abhy Devalapura is a student at Stanford working towards his B.S. in mathematics and M.S. in computer science. Abhy has done research on cryptography, computational mathematics, and inferential statistics; he especially enjoys real analysis and linear algebra. Outside of coursework, Abhy loves playing classical piano, taking wildlife photos, and cycling.
Addison Prairie is a sophomore at Stanford studying mathematics. He is particularly interested in theoretical computer science, including complexity theory and machine learning theory. Outside of school, he enjoys reading.
Adeline Wong is currently a software engineer at Waymo, where she works on analytics for the labeling operation. Before that, she worked on neural network-based language models for Gboard (the Google Keyboard for mobile devices) and fraud detection. She holds a B.S. in Mathematics from Stanford. She was also both a student and a counselor for Program I (abstract algebra) at Stanford University Math Camp. These days, in her spare time, she knits a lot, rock climbs on occasion, and looks at photos of gibbons daily. She met Simon when she was a freshman in high school and was a participant in the old AOL Instant Messenger problem-solving chat rooms he used to run.
Aditi Talati is a current undergraduate at Stanford University, double-majoring in math and cs theory. She is still deciding whether she is an algebraist or an analyst, and really enjoys teaching, writing notes, and thinking about interesting problems. When she is not doing math, you can find her baking or drinking boba!
Ahmed Shakil is an undergraduate student at UC Berkeley double-majoring in applied math and computer science. Currently, he is exploring his interests in probability theory and optimization. Previously, he did research in computational biology where he studied the effects of mutations on protein structures. In his free time you can find him playing tennis, watching sports, or sleeping.
Albert Zhang is a graduate student in mathematics at UC Santa Cruz. He received his undergraduate degree from Stanford University. He is interested in algebra, geometry, and number theory.
Alex Cao is an undergraduate student at UC Santa Barbara majoring in mathematics. He is interested in all areas of mathematics but especially in mathematical logic and set theory. Outside of math, he enjoys playing the piano, surfing, and going on runs along the beach of Santa Barbara.
Alex DeWeese is currently an undergraduate computer science student at UC Berkeley. His primary research interests are in machine learning and its applications. Aside from academics he enjoys drawing and learning languages (Korean and Japanese).
Alex Perry is an undergraduate at Stanford studying math and psychology. He has relatively broad interests, but enjoys number theory and other discrete math, and overall loves the creativity and beauty that can be found in math. Outside of academics, he is a serious musician, and enjoys doing magic tricks, Rubik’s Cube, playing ping pong, and reading random books.
Alexander Richardson is a senior at UC Berkeley majoring in mathematics with a minor in physics. Currently doing research in differential geometry, but with interests in analysis, combinatorics, differential equations, algebra. Essentially any math class he has taken seems to become a new interest.
Outside of academia, his interests are hiking, rock climbing, singing, theatre, musical theatre, and seeking new experiences.
Alice Yang is an undergraduate senior at Stanford studying mathematics. Her interests include areas in probability and optimization/dynamical systems. She has previously taught students in both competitive and non-competitive math. Outside of math, she enjoys playing and listening to music.
Allison Bogetich is a third year undergraduate at Stanford studying mathematics and minoring in music. She is still figuring out her mathematics specialty interests, but is very passionate about communicating mathematics effectively to different types of learners. She is planning to make a career in wealth/investment managing. Outside of math, she enjoys powerlifting, going to metal concerts, and spending time with her cats.
Alphonse Houndegla is an undergraduate at Stanford University majoring in Management Science & Engineering. He is interested in the use of optimization and risk analysis to solve real-world financial problems. He has experience doing data analysis as an intern at Massachusetts General Hospital. In his free time he enjoys working out and listening to music.
Alvaro Diaz Ramos is a rising senior studying mathematics and philosophy at Stanford University. In previous summers, he conducted research in model theory and set theory at UCLA and the Hebrew University of Jerusalem, and after graduation, he plans to pursue a PhD in mathematics focusing on set theory. He is interested in ontology and the foundations of mathematics, previously working on stability theory and order theory. In his free time, he likes to read, travel, run, and listen to reggaeton. Fun fact: he holds citizenship in three countries!
Andrei Mandelshtam is a sophomore at Stanford studying mathematics. He is primarily interested in number theory, although he is still deciding whether he prefers algebraic or analytic. He also enjoys computer science and linguistics. In his free time, he enjoys rock climbing, music, learning languages (currently Hebrew), and nature.
Andrew Lin is an incoming first-year graduate student at Stanford, interested primarily in topics in combinatorics, probability, and mathematical physics. He enjoys teaching and making educational materials accessible and digestible. Andrew was also a student in the first Euler Circle class! In his free time, he enjoys playing the violin, competing in osu! tournaments, and watching cooking videos instead of actually cooking.
Andy Dai is an undergraduate at Stanford studying Mathematical and Computational Science. He’s not sure what his exact mathematical interests are, but really enjoys studying and learning new topics in math. In his free time, he also likes noodle making, mahjong, and music.
Anika Chopra is an undergraduate at Stanford University studying mathematics and philosophy. She is passionate about spreading the love for math amongst students of all backgrounds, organising her city’s first-ever math outreach program for middle and high school students. Outside of math, she enjoys Indian Classical music and dance.
Annie Chen is an undergraduate at Stanford University studying mathematics. Her interests include analysis, probability, and combinatorics. She has done research in arithmetic dynamics and probability theory and has written a paper and given a conference presentation on her work. In addition, she has previously tutored many advanced middle and high school students in math. In her free time, Annie enjoys playing tennis and card games.
Annika Mauro is an undergraduate studying mathematics at Stanford. She is interested broadly in math, especially complex analysis, algebraic topology, and combinatorics, and has done research in discrete math. She is also enthusiastic about computer science and physics. In her free time, she enjoys reading, spending time outdoors, and drawing.
Ben Heller is an undergraduate at Stanford studying mathematics. His interests range over virtually all branches of math, but has a soft spot for mathematical logic, analysis, and differential topology. He has done research in probability theory and has experience tutoring undergraduates in the Stanford math department’s peer tutoring program. Aside from math, he enjoys tinkering with Linux and listening to music.
Benjamin Vakil is a sophomore math major at the University of Connecticut. Math-wise, he is currently interested in Number Theory and is always passionate about math education. Outside of math, he likes to sing and study history. He grew up in Palo Alto, California.
Bryan Hu is a graduate student at UCSD studying mathematics. His interests include number theory, algebraic geometry, and combinatorics. He was previously an assistant instructor at the Los Angeles Math Circle. Outside of math, Bryan enjoys basketball and all kinds of games.
Bryan Li is a freshman double-majoring in math and computer science at UC Berkeley who is still trying to find his mathematical interests. Although he had very little experience with competition math in high school, he fell in love with math while self-studying discrete math. When he is not doing math, you can find him playing (way too much) ping pong, eating out with friends, or sleeping.
Cameron Krulewski is a postdoctoral researcher in mathematical physics. She just received her PhD in mathematics from MIT, and her research is primarily in the intersection of algebraic topology and quantum field theory. Her hobbies include running and archery.
Carson Mitchell is an undergraduate math student at UC Berkeley. He is currently researching in Ehrhart Theory and has broader interests in analysis, combinatorics, logic, computer science, and philosophy. Carson has a passion for teaching and is also involved with competition math. He loves movies, books, puzzles, music, video games, and his dog Dexter.
Casey Wojcik is a graduate student at Stanford, researching topological photonics. He has broad interests in mathematics and physics, and especially likes to see how diverse concepts from math can help explain simple and universal physical phenomena. In his free time, he enjoys birding and other outdoor activities.
Catherine Wahlenmayer is a rising second year graduate student at UC San Diego. She is interested in learning more about discrete geometry, combinatorics and math education. She has worked as an online tutor for Larson Texts, Inc. and as a TA at Gannon University and UCSD, and she would like to pursue a career in teaching. Outside of math, Catherine enjoys cooking and baking and is looking forward to skydiving for the first time.
Christina Yu is a student at MIT working towards a double major in mathematics and computer science and a master’s degree in computer science. She is interested in theoretical computer science, topological combinatorics/discrete geometry, and machine learning, and has done research in these areas. In her free time, she enjoys cooking, knitting, and writing.
Clyde Huibregtse graduated from MIT in 2020 with degrees in Physics and Mathematics for Computer Science. He is currently a software engineer at a nuclear energy startup in Sunnyvale called Oklo. He works at the intersection of scientific computing and machine learning in the development of non-linear models for core dynamics. In college, he was an NCAA water polo player and still spends his time training and playing competitively in the Bay Area.
Daniel Naylor is an incoming Statistics PhD at UC Irvine, and completed his undergraduate in mathematics at UCSB’s College of Creative Studies. His primary interests are in statistics and data science, namely Bayesian methods, statistical modeling, probability theory, and real analysis. Outside of stressing about math, he likes to play video games, especially narrative-driven singleplayer games.
David Walton is a sophomore at Stanford studying mathematics and minoring in East Asian languages. He particularly enjoys math with analytic or topological flavors. Aside from learning and teaching math, his other passions include long distance running, violin, crossword solving, and any outdoor adventures.
Dean Menezes has a masters degree in mathematics from UCLA. He completed his undergraduate studies at UT Austin, earning degrees in
Mathematics and Plan II Honors with highest honors. His mathematical interests span logic, combinatorics, and topology, and he has conducted research in areas including knot theory, Heegaard-Floer homology, and o-minimality. He has given talks on a wide range of topics from algebraic geometry to descriptive set theory and enjoys exploring deep mathematical ideas through seminars and summer schools. Outside of math, Dean enjoys classical piano, chess, and volunteering with math outreach programs.
Dominick Joo is an undergraduate at Brown studying mathematics. He is particularly interested in geometry and topology, as well as secondary mathematics education. His other academic interests include linguistics and music. In his free time, he plays chess, does crosswords and reads.
Donald Poindexter is an undergraduate at Stanford university majoring in mathematics with a concentration in discrete math and CS theory. He is generally interested in philosophy and the formal sciences, and has nearly a decade of experience teaching math and CS to young adults. His diverse hobbies include watching anime, reading manga, debating, listening to hip hop or jazz, playing video games, programming, and more!
Dora Woodruff graduated from Harvard this spring and is starting a math PhD at MIT in the fall. Her main research area is combinatorics, but she also loves topology and algebra. Outside of math, she likes rock climbing, playing oboe, and writing.
Dowon Kim is a recent graduate from UC Berkeley in statistics and data science. His interests include probability theory, machine learning and stochastic processes. Outside of school, he enjoys golf, snowboarding, and history.
Elena Kobayashi is an undergraduate at UCLA studying mathematics. She has long loved number theory and algebra, but has recently developed a growing interest in analysis (and may or may not be switching teams). She appreciates math for its beauty, elegance, and creativity, and especially enjoys sharing that love through teaching. Outside of math, Elena is passionate about music. She has played the violin and piano for most of her life, and lately has been spending (perhaps too much) time learning the guitar.
Emma Cardwell is an undergraduate studying mathematics and statistics at Harvard. She is a former Euler Circle student and is very excited to return as a TA! She is especially interested in algebra and probability. Emma also enjoys cooking, playing piano, and playing card games.
Emma Cruz is a current undergraduate at Stanford University, pursuing a major in mathematics and a master’s degree in computer science. She has loved math as long as she can remember and also enjoys teaching in both formal and informal settings. Outside of school, she enjoys rock climbing, playing rugby, and baking.
Eric Frankel is a sophomore at Stanford studying mathematics. He is interested in analysis, probability, combinatorics, and dynamical systems, and has done research in probability theory. Eric is a board member on Stanford’s Math Organization and has tutored students in competitive and non-competitive math. Outside of math, Eric likes exercising, eating, coding, and getting bad haircuts.
Eric Kim is a recent graduate from Stanford University in mathematics. His interests include algebra, number theory, functional analysis, probability, and differential equations. He has done research in complex analysis and has graded for undergraduate courses. Aside from math, he enjoys singing and solving Rubik’s cubes.
Ethan Martirosyan has recently graduated from the College of Creative Studies at UCSB with a Bachelor of Science degree in Mathematics. His special interests include analysis and topology. Outside of school, he enjoys going for long walks on the beach.
Eyob Tsegaye is a junior at Stanford studying mathematics. His interests include algebra and combinatorics. He has research experience in additive combinatorics, probability theory, and finite group theory. Additionally, he has previously tutored several high schoolers. Outside of math, he enjoys reading, listening to music, and playing smash bros.
Faizan Hussaini is a second year studying Math at UCSB. He is interested in Algebra and Number theory. He has done research in knot theory and gauge theory. Outside of math, he enjoys chess, wrestling, tennis, and board games.
Freya Edholm
Ishaan Patkar is a third-year undergraduate student studying mathematics at UC Berkeley. His interests lie broadly in algebra, analysis, and topology, as well as intersections between these areas. Currently, he is involved in research in the algebraic aspects of Ehrhart Theory. When not studying math, Ishaan enjoys explaining math, reading, listening to progressive metal, and playing strategy games.
Jacob Swenberg is a PhD student at UCLA studying algebraic number theory. Jacob was born and raised in the Bay Area, and graduated from Dartmouth College in 2021 with a BA in Mathematics. His current research focus lies at the intersection of arithmetic geometry and Iwasawa theory, and he loves learning about p-adic techniques for studying algebraic curves and their Jacobians. When not doing math, Jacob can often be found writing, listening to music, and having long, wandering conversations with friends.
Javier Echevarría is a senior at Stanford University studying mathematics and computer science. He is interested in partial differential equations, differential geometry, and mathematical physics. Besides grading undergraduate level courses, he has also been a tutor for fellow students ever since high school. In his free time, he enjoys swimming and playing the piano.
Jaydeep Singh is a senior at Stanford studying mathematics. He is interested in the intersections of mathematics and physics, as they manifest in probability, PDE, and geometric analysis. He has research experience in mathematical general relativity and gauge theory, and has worked as a calculus peer tutor at Stanford. Outside of school, he enjoys baking, playing tennis, and listening to music.
Jiazhen Tan is a graduate student at UC Berkeley studying mathematics. Her interests include number theory, algebra, functional analysis, and classical geometry. As an undergrad, she organized puzzle session for Cornell’s math club and tutored at the department-run Math Support Center. She also worked as a counselor at Ross and PROMYS during the summers. She likes making polyhedral models (modular origami, balloon stuff), learning ice skating, blueberries, and the number 1207.
Josh Zeitlin is a student at Yale University majoring in mathematics and was a former Euler Circle student from 2019 to 2021. His main pure mathematical interests are probability theory and algebraic number theory, yet is also interested in computer science and machine learning. Outside of math, Josh likes to take long hikes, solve puzzles and watch basketball.
Karen Ge is an undergraduate at Stanford who hopes to improve mathematics education. She is interested in areas of number theory, algebraic topology, and cryptography. Karen has extensive experience tutoring and coaching in both competitive and non-competitive math. Outside of math, she loves playing ultimate frisbee, being swept away by the wonders of orchestral music, and writing poetry.
Katherine Martin is a PhD student at UC Santa Barbara. She is doing research at the intersection of geometric group theory and number theory. She has worked as a teaching assistant at UC Santa Barbara. In her free time, she enjoys movies, video games, and board games. She is also a singer.
Katy Woo is a senior studying mathematics. She is interested in and has done research in number theory and cryptography. She was the president of Stanford’s student math organization and is currently a peer adviser for the math department. She has also been a counselor for Stanford University Mathematics Camp and a course assistant for a cryptography class in the CS department. Outside of math, she enjoys dancing and origami.
Kishan Jani is a co2025 undergraduate student at UC Berkeley studying math. Broadly, his interests lie in probability theory, complex analysis, and number theory, and he is currently pursuing some research related to Markov chains. Kishan enjoys counting primes, doing integrals, and learning about primality-proving algorithms. Outside of math, he also really enjoys physics and linguistics. He loves teaching, and as a former Euler Circler, he is really excited to be a TA and share fun math with others!
Lance Mathias is an undergrad at UC Berkeley studying applied math and computer science. His research interests are broadly machine learning theory and optimization algorithms. Outside of academia, he likes to take pictures and bike!
Lisa Liu is a rising sophomore at Stanford University. She is still figuring out her mathematical interests, which could be some form of analysis or topology, and she is the social chair of the Stanford Undergraduate Mathematics Organization. She is an alum of SUMaC, Ross, and Canada/USA Mathcamp, and has greatly enjoyed these programs. In her free time, she loves working on and/or watching musical productions and playing social deduction games.
Lucas Fagan is a graduate student at UC Santa Barbara working on a PhD in mathematics. He originally got into math for the love of solving puzzles and doing critical thinking, and currently works on computational topology. Outside of math, Lucas enjoys coding, playing tennis, and watching sports.
Lucas Heneveld is a junior at Harvard University, majoring in Mathematics and pursuing a master’s in Statistics. He is especially drawn to the topics of combinatorics, group theory, and topology. Outside of the classroom, he enjoys staying in hostels around Europe, building a startup with friends called Autoparkr, and playing soccer.
Lucas Perry is an undergraduate student studying Math and Earth Systems at Stanford. He hopes to use math and data science to help design sustainable solutions. Outside of school, he likes playing/listening to music, drawing and exploring nature.
Lucy Vuong is a senior at Harvard double concentrating in mathematics and folklore. She is primarily interested in geometry and especially low-dimensional topology, but is always exploring where math might take her next! She has course assisted for various undergraduate math classes at Harvard, including Abstract Algebra and Classical Geometry, and in her free time she enjoys puzzle games, dancing, and calligraphy.
Mark Takken is an undergraduate at Harvard studying applied math and was an Euler Circle student from 2020 to 2022. His mathematical interests include representation theory and spherical trigonometry, and his other academic interests include machine learning and physics. He also enjoys singing in choir, playing Go and learning languages.
Mateo Attanasio is an undergraduate at Stanford studying mathematics. His interests include algebra, number theory, and topology. He has experience as a peer tutor in the Stanford maths department. Outside of mathematics, interests include rock climbing and history.
Matin “Mat” Ghavamizadeh recently graduated with highest honors from UC Berkeley with degrees in Electrical Engineering and Computer Science (EECS) and Applied Mathematics with a focus on probability theory. Currently, he is a visiting researcher at MIT Probabilistic Computing Project (ProbComp). Before starting his PhD at MIT, Matin is taking the next year off to finish Part III of the mathematical tripos in statistics at the University of Cambridge. His mathematical interests are analysis, probability theory, statistics, and computation -especially probabilistic computation. Besides math and computers, Matin enjoys reading, thinking, cooking, and comedy.
Maya Sankar is a first-year PhD student in mathematics at Stanford. Her interests lie in graph theory and combinatorics. Outside of school, Maya loves to play music, read, and knit, and is delighted to be back home in California where she can enjoy the sun all year round.
Milo Moses is a sophomore at UC Santa Barbara studying mathematics. When he chooses the correct algebraic structure to formalise a concept and then the proofs all become obvious, that makes him very happy. His favorite hobby is not stressing himself out with too many time consuming hobbies.
Mozhgan Mirzaei is a recent graduate from UC San Diego in math. In particular, she is interested in Combinatorics, Computational Geometry, and Graph Theory. Besides math, Mozhgan loves exercising, playing chess, and painting.
Nancy Bao is an undergrad at Stanford studying mathematics and computer science. She enjoys problem-solving and exploring new concepts, and aims to share this passion with her students. Besides math, she enjoys riding bikes, fixing bikes, and exploring new places.
Neel Murthy is an undergraduate at UC Santa Barbara studying mathematics and computer science. He has several interests, including but not limited to number theory, algebraic geometry, probability, and algorithms, and he is especially fond of topics where these fields meet. He has experience tutoring middle school students and undergraduates and grading undergraduate courses. Outside of mathematics, he enjoys spending time outdoors on sunny days.
Nicklas Majamaki is a junior at UC Berkeley studying Electrical Engineering & Computer Science. He is interested in probability, number theory, and deep learning. He has tutored for both high school and undergraduate courses. Outside of academics, he is on the Cal Triathlon team and enjoys hiking, going to the beach, and eating good food.
Nik Castro is a senior at Stanford studying mathematics. His interests include real analysis, probability, algebraic topology, and algebraic number theory. He has graded for both undergraduate and graduate level courses, and was a counselor at the Stanford University Mathematics Camp. Outside of math, he enjoys practicing martial arts.
Nikhil Sahoo is a recent graduate from UC Berkeley, where he earned a BA in math. His primary mathematical interests are in differential topology, but he has done research projects in symplectic topology, Schubert calculus, and Minkowski geometry. Nikhil has also lectured and graded for the Berkeley Math Circle since 2018, where he greatly enjoys the opportunity to share interesting mathematics with students of all levels. Outside of studying and teaching, Nikhil enjoys hiking and rock climbing.
Nina Zubrilina is an undergraduate at Stanford studying mathematics. She enjoys combinatorics, analytic number theory, analysis, geometry and anything having to do with sphere packing. She has done research in combinatorics and number theory and has written four papers on her work.
Besides Euler circle, her teaching experience includes being a TA for other math circles, TAing a class in Moscow High School #57, being a counselor and TA in a summer math camp, and giving a series of lectures in the Moscow Branch of the Higher School of Economics.
Nitya Mani is an undergraduate studying mathematics at Stanford University. She is excited about problems in algebraic number theory and extremal combinatorics and has done research in both areas. Some current areas she is learning more about include geometric measure theory and local class field theory. In addition to being a teaching assistant at Euler Circle for the past 3 years, Nitya coordinates the student peer tutoring program for the Stanford mathematics department and has graded many Stanford math classes.
Niven Achenjang is a senior at Stanford, studying mathematics. His mathematical interests include algebraic number theory, algebraic topology, and complex geometry, and he has published research in number theory. At Stanford, he has graded for and tutored students in math classes, as well as been a counselor and TA for the Stanford University Mathematics Camp. Outside of math, Niven enjoys video games, sports of all kinds, and performing with the Stanford Jump Rope Team.
Onyebuchi Ekenta is a math graduate student at UC Berkeley. He studies computational linear algebra and scientific computing. He’s also interested in the field of computational complexity theory. For hobbies, he likes watching anime, and playing around with computer programs and circuits.
Ophir Horovitz is pursuing a B.S. in Mathematics and M.S. in Computer Science at Stanford University. His interests include algebra, combinatorics, and set theory, as well as areas of theoretical computer science such as complexity theory, cryptography, and error-correcting codes. He has done research in cryptography and coding theory. Outside of academics, he enjoys playing piano and has been playing for fifteen years.
Pariya Akhiani is an undergraduate mathematics major in UCSB’s College of Creative Studies and would love to answer any questions about the program! She enjoys various topics in math, most notably topics in algebra, game theory, and transportation theory, but is interested in learning new things in all areas. Besides doing math, Pariya spends her time scuba diving, rock climbing, and listening to music.
Paulina Paiz is a Biomedical Data Science graduate student at Stanford. She has a B.A. in Cognitive Science from the University of Pennsylvania, where she developed computational methods to understand complex contagions. She grew up in Guatemala, loves playing tennis, and practicing piano. She is excited to ponder math questions with you this summer!
Pete Rigas is a recent graduate of Cornell University, having received a Bachelor’s degree, summa cum laude, in Mathematics, and a Masters’ degree in Statistics. He is interested in probability theory, statistical mechanics, variational quantum computing, synthetic biology, and prognostics of autonomous space vehicles. He has conducted research in all of these areas, with a particular emphasis on quantifying the sharpness of crossing probability estimates for the dilute Potts model, which shares connections with the Loop O(n) model, in addition to several forthcoming works on different statistical models. In his free time, he likes to run, go to the beach, and explore different parts of Southern California.
Quinn Greicius is a senior at Stanford studying mathematics. He is interested in algebraic geometry, number theory, and algebraic topology, and has done research on Galois representations arising from abelian varieties. He has previously taught classes in algebra and number theory for advanced high schoolers in the Bay Area. In his free time, Quinn enjoys playing the piano, reading, and playing soccer.
Rachana Madhukara is an undergraduate at MIT studying mathematics. She is primarily interested in elementary and analytic number theory and has research experience in these areas. Outside of math, Rachana likes going to escape rooms, rock climbing, cooking, and traveling.
Rajashree (Rajee) Agrawal is a freshman at George Mason University. Previously, Rajee dropped out of school in India to pursue independent learning. She is currently leveraging her education experience to run experiments in teaching, particularly monsoonmath.org. She is most excited about logic, category theory, and combinatorics. Besides math, Rajee is interested in robustness in machine learning, free market economics, and financial engineering. She spends her leisure time singing Hindustani classical, swing dancing, cooking, and doing group meditation with friends.
Rajiv Nelakanti recently graduated from Yale in 2022 studying mathematics. After enjoying his time participating in Stanford University Mathematics Camp in 2016, he returned as a counselor in 2019 and had a blast. His past research includes investigating the game of 3-pile Candy Nim (with Euler Circlers Nitya Mani and Alex Tholen!), characterizing points in various continua, and characterizing theta graphs on flat tori. Outside of math, Rajiv loves spikeball, singing, basketball, and self-referentially listing his hobbies.
Rawley Harrison is a sophomore studying mathematics at Stanford who is interested in abstract algebra, algebraic geometry, number theory, and topology. Outside of math, Rawley likes hiking, rock climbing, and playing and listening to music, particularly jazz.
Richard Yi just graduated from MIT, majoring in math and physics, and will pursue a PhD in math at UC San Diego starting this fall. He is interested in number theory and algebraic geometry. He has coached several students in competition math. Besides doing math, he has been spending his time this summer playing chess, thinking about philosophy, and reading different kinds of books.
Ryan Catullo is an undergraduate studying Mathematics at Stanford. He is interested in algebraic geometry and modular forms, as well as cryptography and computer science in general. Outside of math, he enjoys surfing, playing tennis, and listening to music.
Ryan Smith is a master’s student in computer science at Stanford. His interests are in cryptography, computational complexity theory, and algebraic number theory. He has TA experience at the Stanford University Mathematics Camp as well as the computer science department at Stanford. Outside of math he enjoys reading, musical theater, and games of all kinds.
Sahil Adhawade is a student at Stanford studying math and computer science, focusing on systems and AI. He deeply enjoys researching and learning about new technology that will transform the way we interact with machines—think neural interfaces or AI agents. Math to him is a way to observe the world in a more quantitative, analytical, and philosophical manner. These traits are critical to build transformative things. So far, he has thoroughly enjoyed diving into topics such as real analysis, differential geometry, and statistics.
Sambhabi Bose is an undergraduate student at UC Berkeley studying math. She is interested in number theory and algebraic geometry, and math education. She has done research on the Collatz Conjecture and the Erdős-Moser Equation and writes problems for math competitions on the side. In her free time, she likes to play soccer, cook, and listen to the Star Wars soundtracks.
Sarah Bauer recently graduated from UCLA with a B.S. in Mathematics and will begin graduate studies at UC Santa Cruz this fall. She is passionate about mathematics education and has held roles supporting students at UCLA, Los Angeles Trade-Technical College, and Irvine Valley College. Her mathematical interests include representation theory and algebraic topology. She also enjoys backpacking, studying flags (vexillology), and learning languages.
Sarah Fujimori is an undergraduate at Stanford studying mathematics and CS systems, and is interested in algebra and analysis. She took classes at Euler Circle when she was in high school and is excited to return as a TA! When she’s not doing math, you can find her getting boba with friends or trying new restaurants around the Bay Area.
Sawyer Dobson is a graduate student at UC Santa Barbara studying mathematics. He is interested in quantum information, specifically quantum error correction and topological codes. Before UCSB, Sawyer attended Stanford and received a bachelor’s degree in mathematics and physics, as well as a master’s degree in computer science, specializing in CS theory. He loves teaching and has extensive experience, having TA’d courses at Stanford and UCSB, been a counselor at SUMaC for two summers, and TA’d at Euler Circle since early 2020. Outside of mathematics, Sawyer enjoys weightlifting, playing volleyball, juggling, and playing board games.
Sawyer Robertson is currently a first-year math PhD student at the University of California, San Diego. His research interests are generally geared towards combinatorics and applications to data science, with special emphasis on spectral graph theory.
Sebastian Griego is a graduate student at San Diego State University studying applied mathematics. Their research interests lie in Large Language Models, exploring the intersection of mathematics and artificial intelligence. They have experience in mathematical instruction as a teaching assistant. Aside from learning and teaching math, their other passions include hiking, reading philosophy, and experimenting with AI models.
Serkan Salik is an undergraduate majoring in pure math at UC Berkeley. His mathematical interests include topology, geometry, and differential equations. When not doing math, he enjoys playing chess, reading, and sleeping.
Shardul Chiplunkar is a ’22 undergrad at MIT studying mathematics and computer science. His mathematical interests include logic, formal systems, theory of computation, and programming language theory; his other academic interests include linguistics and computational cognitive science. He is currently doing research in formal verification and program synthesis. He also enjoys listening to and creating music (especially Hindustani classical), teaching, and spinning fire.
Sherry Sarkar is a senior computer science major from Georgia Tech. Her research interests are combinatorics, theoretical computer science, and discrete geometry. She has several papers and conference talks in these areas. Sherry also has TAed several math and CS courses at Georgia Tech. Outside of research, she boulders and watches anime.
Shoshana Elgart is a first-year mathematics student at Stanford University, especially interested in dynamical systems, combinatorics, and number theory. She is fascinated by the applications of math to interdisciplinary questions, and absolutely loves teaching, having previously gotten to work as a teacher at the Cambridge Math Circle and a summer camp TA at the Berkeley Math Circle. Outside of math, she enjoys baking, playing chess, and hiking.
Sonia Chu is a freshman at Stanford University. She’s interested in a wide variety of areas in math, along with interdisciplinary studies between math and other fields. Sonia has taught students ranging from elementary school to high school, in both competition and non-competition math. In addition, she has authored lab manuals for college cryptography courses. Outside of math, she enjoys reading, playing the clarinet, and skiing.
Sophia Sanchez is a Masters student at Stanford studying Computer Science, with a concentration in Artificial Intelligence. She studied math in undergrad at Stanford as well, where she was broadly interested in combinatorics, and probability theory. Outside of math, Sophia enjoys fencing (the sport), watching old films, and learning to dance salsa.
Sukrith Raman
Surya Vengadesan is an undergrad at UC Berkeley studying computer science and math. His interests lie in optimization and theoretical computer science. Surya also enjoys reading and internet surfing. Check out his writings and notes at orange-sunshine.github.io.
Tae Kyu Kim is a freshman at Stanford studying computer science with concentration in AI. He also enjoys studying number theory, combinatorics, and CS theory. He was a student at Euler Circle in 2018-2021 and is excited to be back as a TA! In his free time, he plays the cello, being part of Stanford’s collaborative orchestra, and listens to music.
Tanvi Deshpande is an undergraduate at Stanford studying computer science with a concentration in AI. Her interests in mathematics include probability theory and discrete mathematics in general. She is a former Euler Circler and is excited to return this fall as a TA! Outside of math, Tanvi’s hobbies include word games (especially New York Times crosswords), playing guitar, and fitness.
Thomas Kaminsky is an incoming graduate student at Harvard studying computer science, where he plans to work on robust multi-robot coordination problems. In undergrad he studied math and statistics, and is especially interested in analysis, optimization, and statistical inference. When not doing math, Thomas loves to play the flute, bake (with mixed results), and go on walks.
Tim Wu is an undergraduate at Stanford studying mathematics. His interests include number theory, combinatorics, and graph theory, and he has done research in graph theory. Before joining Euler Circle, Tim ran and taught a math circle back home in Michigan. Outside of math, he enjoys listening to music and trading stocks.
Titus Sharman is an undergraduate at Stanford studying mathematics. He is broadly interested in low dimensional topology and 4-manifolds.
Tyler Shibata is a sophomore at Stanford studying mathematics. Though his mathematical interests span a variety of branches, he particularly enjoys studying linear algebra, stochastic processes, and real analysis. Despite having no formal interest in mathematics prior to college, he fell in love with the motivations behind certain topics after watching some inspiring 3Blue1Brown videos. Outside of math, he likes to cox for Stanford Men’s Rowing, cook and eat delicious foods, and play the saxophone.
Varun Srivastava is a UC Berkeley undergraduate studying math and computer science. He is a former member of Euler Circle where he developed a broad interest in combinatorics, algebra, and number theory.
Outside of math, he enjoys playing the guitar, exercising, and reading.
Vedant Janapaty is a current freshman at the University of California, Los Angeles majoring in Mathematics of Computation. His favorite areas of math include discrete math and differential equations. Math to him is a way to understand the beats and nuances in the world through a different lens. Outside of math, he enjoys running, biking, and listening to music.
William Xi is an undergraduate at Stanford studying mathematics and computer science. He is interested in all kinds of mathematics, especially algebra, number theory, and combinatorics. He has tutored students over the years in both competitive and non-competitive math and has graded for several online math classes. Outside of math, William enjoys coding, physics, playing basketball, and eating.
Yelena Mandelshtam is a senior at Stanford studying mathematics. She has been a TA at Euler Circle since 2016, and was a TA at the Euler Camp in Irvine in winter 2017-18. In addition to Euler Circle, Yelena has experience teaching a math circle at her Russian school when she was in high school, being a counselor at the Stanford University Mathematics Camp, and tutoring students individually. Her primary research interests are combinatorics and analysis. She has done research in mathematical biology, combinatorics, and ergodic theory and has written five papers on her work. Outside of math, Yelena enjoys rock climbing, playing board games, and reading and writing poetry.
Yuzu Ido is a sophomore at Stanford studying mathematics and music. She is interested in multiple areas of math, currently with an emphasis on algebra. She has done research on integer forms and elliptic curves and is a peer tutor for the Stanford Undergraduate Mathematical Organization. Outside of math, she enjoys making music, taking interesting courses in a variety of subjects, and eating good food.
Zarif Ahsan is a recent graduate from Stanford University who will be starting his PhD in mathematics at the University of California, Berkeley this fall. His research interests include all forms of differential geometry, especially Kähler geometry. He has previously done work in mathematical biology as well. In his free time, he enjoys listening to post-punk music, DJing his radio show, collecting trinkets, and reading South Asian and/or Queer and/or 19th century literature.
Zizai Cui is an undergrad at Duke. He wants to study the ideas and forces that have shaped the contemporary society. His goal is to be a Renaissance Man. He intends to devote his life to the pursuit of Truth and Beauty, and Maths seems to be a combination of the two!
Zoe Himwich is a math major in her senior year at Stanford. She has been a TA at Euler Circle since Winter 2018. Her other teaching experience includes TA-ing at Stanford Math Circle and grading undergraduate math classes. She has done research in several areas of mathematics, including graph theory, topological quantum field theories, and the mathematics of phylogenetics. When not doing math, Zoe studies English literature and enjoys learning new languages.
Euler Circle 