Chia-Yu Chang

張家瑜

Postdoc

Institut de Mathématiques de Toulouse

Université Toulouse III - Paul Sabatier

E-mail: chia-yu.chang AT math.univ-toulouse.fr

About me

I am a postdoc in the Institut de Mathématiques de Toulouse working with Fulvio Gesmundo. Before that, I was a PhD student in Texas A&M University working with JM Landsberg. I am interested in problems arising in complexity theory of matrix multiplication. My research investigates the geometry of tensors, with a focus on studying the rank, border rank, subrank, and border subrank of tensors. The methods I use include representation theory and invariant theory. This is my CV.

Preprint

B. Biaggi, C.-Y. Chang, J. Draisma, and F. Rupniewski, “Border subrank via a generalised Hilbert-Mumford criterion”, Advances in Mathematics (accepted), 2024. arXiv: 2402.10674 [math.AG].
C.-Y. Chang, “Maximal border subrank tensors”, Linear and Multilinear Algebra, pp. 1–11, 2024. https://doi.org/10.1080/03081087.2024.2352456.