Yuxuan Sun

collaborators

2 papers

cs.SC2026

Dynamical sequences: closure properties and automatic identity proving

Jason P. Bell, Yuxuan Sun

Given an algebraically closed field $K$ , a dynamical sequence over $K$ is a $K$ -valued sequence of the form $a (n) := f (I ¨ ^{n} (x_{0}))$ , where $I ¨ : X \to X$ and $f\colon X\to\mathbb{…

math.CO2025

Characterizing positroid quotients of uniform matroids

Zhixing Chen, Yumou Fei, Jiyang Gao +2

We study two-step flag positroids $(P_{1}, P_{2})$ , where $P_{1}$ is a quotient of $P_{2}$ . We provide a complete characterization of all two-step flag positroids that contain a uniform…