Andrada Pojar

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20232026

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math.RA2026

A bound for the nilpotence index associated to $m$ -nil-clean nonderogatory matrices

Andrada Pojar

It is proved that if $F$ is a field of positive characteristic $p,$ and if $m$ and $n$ are positive integers such that $m \geq 2,$ and $4 \leq n \leq p \leq mn - 1,$ for every $n…

math.KT2026

Equivariant Hochschild cohomology of group algebras and relative $Ext$

Andrada Pojar, Constantin-Cosmin Todea

For a finite group $Γ$ , acting on a finite group $G,$ we find necessary conditions for which the first $Γ_{0}$ -equivariant Hochschild cohomology of the group algebra $k G$ is non-triv…

A bound for the nilpotence index associated to m-nil-clean nonderogatory matrices

Equivariant Hochschild cohomology of group algebras and relative Ext

A bound for the nilpotence index associated to $m$ -nil-clean nonderogatory matrices

Equivariant Hochschild cohomology of group algebras and relative $Ext$