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Hi there, I'm Mattie (she/her/hers)! πŸ³οΈβ€πŸŒˆ

I'm a senior at Brown concentrating in Mathematics-Computer Science and Applied Mathematics. This is my personal GitHub account containing some of the projects I have worked on before.

πŸ”¬ Research:

  • In Summer 2023, I worked on fake projective planes at the DIMACS REU Program, advised by Professor Lev Borisov.
  • From Spring 2023 to the present, I am working with Professor Kun Meng on topics in topological data analysis and manifold learning.
  • In Summer 2022, I worked on the rationality of conic bundles over the real projective plane at the University of Michigan's 2022 Mathematics REU program, advised by Dr. Lena Ji

🏫 Teaching:

  • HTA for CSCI1550 / 2540 at Brown; Probabilistic Methods in Computer Science; Spring 2024
  • UTA for MATH1140; Functions of Several Variables (Calculus on Manifolds); Spring 2024
  • Grader for MATH2520; Algebra (Commutative Algebra); Spring 2024
  • UTA for MATH1530 at Brown; Abstract Algebra; Fall 2023
  • HTA for CS1450 at Brown; Advanced Introduction to Probability for Computing and Data Science; Fall 2023
  • UGA for MATH2510 at Brown; Algebra; Fall 2023
  • HTA for CS1952Q at Brown; Algorithmic Aspects of Machine Learning; Spring 2023
  • UTA for MATH1040 at Brown; Problems in Geometry; Spring 2023
  • UGA for MATH2510 at Brown; Algebra; Fall 2022
  • UTA for MATH1530 at Brown; Abstract Algebra; Fall 2022
  • Emergency UGA for MATH1260 at Brown; Complex Analysis; December 2022
  • UTA for CS1951A at Brown; Data Science; Spring 2022
  • UTA for CS1450 at Brown; Advanced Introduction to Probability for Computing and Data Science; Fall 2021

πŸ“« Contact: Email

🎡 Note: I also have a professional second account for code used in our research.

Mattie Ji's Projects

apma1940y-notes icon apma1940y-notes

Lecture notes from APMA1940Y: Wavelets and Applications with Mark Ainsworth at Brown University for the Spring 2023 semester.

apma2550-notes icon apma2550-notes

Lecture notes from APMA 2550: Numerical Solution of Partial Differential Equations I by Mark Ainsworth at Brown University for the Fall 2023 semester.

apma2811x-feec-notes icon apma2811x-feec-notes

Lecture notes from APMA 2811X: Finite Element Exterior Calculus by Johnny Guzman at Brown University for the Spring 2024 semester.

computational-homology icon computational-homology

A simple calculator for simplicial homology of finite Delta complexes using Smith normal forms. Final project of MATH 2410: Topology, instructed by Richard Schwartz.

flip-graph icon flip-graph

This project hosts the supplementary code for the project "Computing Flip Graphs of Highly Non-Convex Polygons" by Mattie Ji.

hyperbolic-octagon icon hyperbolic-octagon

"None of our sensations, if isolated, could have brought us to the concept of space; we are brought to it solely by studying the laws which those sensations succeed one another." - Henri Poincare

lgbtqia-in-china icon lgbtqia-in-china

πŸ³οΈβ€πŸŒˆ **ηš„ζ€§ε°‘ζ•°ηΎ€δ½“δΈ€η›΄ζΈ΄ζœ›η€θ‡ͺη”±εΉ³η­‰

local-rational-invariants icon local-rational-invariants

This project hosts the supplementary code for the project "Local Rational Formulae for Computing Topological Invariants" by Kexin Ding and Mattie Ji. This project was previously an independent study course advised by Professor John Hughes.

math1560-notes icon math1560-notes

Lecture notes from MATH 1560: Number Theory with Nicole Looper at Brown University for the Spring 2022 semester.

math2260-notes icon math2260-notes

Lecture notes from MATH 2260: Riemann Surfaces with Jeremy Kahn at Brown University for the Spring 2024 semester.

math2550-notes icon math2550-notes

Lecture notes from MATH 2250: Complex Function Theory with Sergei Treil at Brown University for the Fall 2022 semester.

stars icon stars

ζ˜¨ε€œζ˜ŸθΎ°ζ˜¨ε€œι£ŽοΌŒη”»ζ₯Όθ₯Ώη•”ζ‘‚ε ‚δΈœγ€‚ - ζŽε•†ιšγ€Šζ— ι’˜γ€‹

telemetry-mark-ii icon telemetry-mark-ii

A rudimentary telemetry system made for the Solar Car Challenge. Made in Arduino.

tendam icon tendam

The World's Youngest Friend-Matching App

umich-reu-2022 icon umich-reu-2022

Some miscellaneous code and writeups I wrote for the University of Michigan's 2022 Mathematics REU program, advised by Dr. Lena Ji.

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