Hello!

My name is Ben Feuerstein, I recently completed my Master's degree in Pure Mathematics at Tel Aviv University, under the supervision of Prof. Leonid Polterovich, and Prof. Lev Buhovsky. Before that, I completed my B.A. in Pure Mathematics at the Technion.

Publications

"A dichotomy for the Hofer growth of area preserving maps on the sphere via symmetrization"
With Prof. Leonid Polterovich, Prof. Lev Buhovsky, and Prof. Egor Shelukhin
Commentarii Mathematici Helvetici (to appear)
arXiv:2408.08854

Teaching

Here is a list of courses I have taught as a teaching assistant at TAU.

  • Calculus 2 for Electrical Engineering, Spring 2026 (Class Notes)..
  • Calculus 2 for Computer Science and Statistics, Spring 2026.
  • Linear Algebra for Mechanical Engineering, Fall 2025 (Class Notes).
  • Mathematical Methods 2 (Linear Algebra), Fall 2025 (Class Notes).
  • Calculus 2 for Electrical Engineering, Spring 2025.
  • Linear Algebra for Mechanical Engineering, Fall 2024.
  • Calculus 2 for Electrical Engineering, Spring 2024.
  • Linear Algebra for Mechanical Engineering, Fall 2023.
  • Calculus 2 for Mechanical Engineering, Spring 2023.
If you are looking for a LaTeX template for the stylized class notes, I uploaded it here, it uses XeLaTeX.
If you are looking for older class notes, please email me!

Code Visualizations

I enjoy writing software to visualize geometrical concepts. Here are three examples, one for rendering sub-level sets of Morse functions, one for simulating Hamiltonian flow, and one for graphing a scalar function on the 2-sphere with height-angle coordinates. The full source code can be found on my GitHub.

Morse function sub-level sets animation

Morse Sub-level sets of \(f(p,q) = \frac{1}{2} \sin(2\pi q)(\cos(8\pi p^2) + \sin(6\pi p^2))\)

Hamiltonian flow simulation animation

Hamiltonian Flow of \(H(p,q) = \sin(2\pi p) +\cos(2\pi q)\)

Shere color graph

The graph of \(f(h,\theta) = \sin(5\theta) + \cos(\pi h) \)

Try Interactive Demo Here