학과 세미나 및 콜로퀴엄
(E2) Room1223 or online (see URL below)
Topology, Geometry, and Data Analysis
Enhao Liu (Kyoto University)
Computing the interval rank invariant of persistence modules
(E2) Room1223 or online (see URL below)
Topology, Geometry, and Data Analysis
In this talk, I will first review the story about single/multi-parameter persistent homology and its algebraic abstraction, persistence modules, from the perspective of representation theory. Then, I will define the so-called interval rank invariant of persistence modules. This invariant can be computed easily by utilizing our proposed formula though its definition is purely algebraic, which will become the main part of this talk. One direct application of the formula is to show the relation between our invariant and the generalized rank invariant proposed by Kim-Memoli. If time permits, I will introduce some other applications and related content.
