Yanhua Wang

collaborators

2 papers

math.RA2020

Cohomological invariants of algebraic operads, I

Yan-Hong Bao, Yan-Hua Wang, Xiao-Wei Xu +3

We study various invariants, such as cohomology groups, derivations, automorphisms and infinitesimal deformations, of algebraic operads and show that $A ss$ , $\mathcal{C}c…

math.RA2019

Multiplicative derivations on rank- $s$ matrices for relatively small $s$

Xiaowei Xu, Baochuan Xie, Yanhua Wang +1

Let $n$ and $s$ be fixed integers such that $n \geq 2$ and $1 \leq s \leq \frac{n}{2}$ . Let $M_{n} (K)$ be the ring of all $n \times n$ matrices over a field $K$ . If a m…

Cohomological invariants of algebraic operads, I

Multiplicative derivations on rank-s matrices for relatively small s

Multiplicative derivations on rank- $s$ matrices for relatively small $s$