Chia-Yu Chang
張家瑜
張家瑜
I am a postdoc in the Computational Complexity group at Saarland University since October 2026, working with Markus Bläser. From 2024 to 2026, I was a postdoc at the Institut de Mathématiques de Toulouse, working with Fulvio Gesmundo. From 2019 to 2024, I was a PhD student in the Department of Mathematics at Texas A&M University, working with JM Landsberg. I am interested in problems arising in the 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.
C.-Y. Chang, F. Gesmundo, and J. Zuiddam, “Border subrank of higher order tensors”, 2026. http://arxiv.org/abs/2604.19872
B. Biaggi, C.-Y. Chang, J. Draisma, and F. Rupniewski, “Border subrank via a generalised Hilbert-Mumford criterion”, Advances in Mathematics, vol. 461, p. 110077, 2025, ISSN: 0001-8708. https://doi.org/10.1016/j.aim.2024.110077
C.-Y. Chang, “Maximal border subrank tensors”, Linear and Multilinear Algebra, pp. 1–11, 2024. https://doi.org/10.1080/03081087.2024.2352456