Chao Yang

collaborators

Showing math.QAShow all

2 papers · 1 filter

math.QA2025

Cofiniteness for Twisted Fusion Products in Vertex Operator Algebra Theory

Chao Yang, Yiyi Zhu

Let $V$ be a vertex operator algebra equipped with two commuting finite-order automorphisms $g_{1}$ and $g_{2}$ , and set $g_{3} = g_{1} g_{2}$ . For $k = 1, 2, 3$ , let $W^{k}$ be a $g_{k}$ -twiste…

math.QA2025

Y(z)-injective vertex superalgebras and Hopf actions

Chao Yang

This paper investigates Y(z)-injective vertex superalgebras. We first establish that two fundamental classes of vertex superalgebras -- simple ones and those admitting a PBW basis…