Yiming Song

I am an undergraduate at Columbia University studying math.

My email is ys3635 AT columbia DOT edu.

Research

  1. A carousel property for compact convex sets. arXiv. Submitted.
    Talk slides at Carleton University algorithms seminar.

Exposition

  1. Notes on Quillen's framework for homological stability.
    For the Manifolds and Homotopy Theory learning seminar.
  2. Notes on the group completion theorem.

Other

Some of my music.

Pictures

Carousel counterexamples
A construction from this paper.
Snow photo
Morningside and Central Park, 2025
Rice University photo
Rice University, 2024
Brooklyn Botanical Gardens photo
Brooklyn Botanical Gardens, 2024