English

Restricted cohomology of restricted Lie superalgebras

Rings and Algebras 2021-02-22 v1

Abstract

Suppose the ground field F\mathbb{F} is an algebraically closed field characteristic of p>2p>2. In this paper, we investigate the restricted cohomology theory of restricted Lie superalgebras. Algebraic interpretations of low dimensional restricted cohomology of restricted Lie superalgebra are given. We show that there is a family of restricted model filiform Lie superalgebra Lp,pλL_{p,p}^{\lambda} structures parameterized by elements λFp.\lambda\in \mathbb{F}^{p}. We explicitly describe both the 11-dimensional ordinary and restricted cohomology superspaces of Lp,pλL_{p,p}^{\lambda} with coefficients in the 11-dimensional trivial module and show that these superspaces are equal. We also describe the 22-dimensional ordinary and restricted cohomology superspaces of Lp,pλL_{p,p}^{\lambda} with coefficients in the 11-dimensional trivial module and show that these superspaces are unequal.

Keywords

Cite

@article{arxiv.2102.10045,
  title  = {Restricted cohomology of restricted Lie superalgebras},
  author = {Jixia Yuan and Liangyun Chen and Yan Cao},
  journal= {arXiv preprint arXiv:2102.10045},
  year   = {2021}
}