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arXiv 2008.00390math.RAmath.GRmath.QAmath.RT
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关于作为范畴特征标的群代数的$(σ,τ)$-导子

On $(σ,τ)$-derivations of group algebra as category characters

Aleksandr Alekseev, Andronick Arutyunov, Sergei Silvestrov

AI总结:

本文在代数语境下利用广群和特征标建立离散可数群群代数的$(σ,τ)$-导子空间分解定理,推广普通导子的相关结论,给出$(σ,τ)$-导子为内导子的判定,并研究两类特殊群的情况。

摘要:

针对离散可数群$G$的群代数$\mathbb{C}[G]$的$(σ,τ)$-导子空间,本文在代数框架下利用广群(groupoid)与特征标建立了$(σ,τ)$-导子空间的分解定理,该定理推广了群代数上普通导子的对应定理。得到了若干描述所有$(σ,τ)$-导子何时为内导子的推论与例子,并详细考察了$(σ,τ)$-幂零群与$(σ,τ)$-$FC$群的情形。

英文摘要:

For the space of $(σ,τ)$-derivations of the group algebra $ \mathbb{C} [G] $ of discrete countable group $G$, the decomposition theorem for the space of $(σ,τ)$-derivations, generalising the corresponding theorem on ordinary derivations on group algebras, is established in an algebraic context using groupoids and characters. Several corollaries and examples describing when all $(σ,τ)$-derivations are inner are obtained. Considered in details cases on $(σ,τ)-$nilpotent groups and $(σ,τ)$-$FC$ groups.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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