The Hochschild cohomology ring of a Frobenius algebra with semisimple Nakayama automorphism is a Batalin-Vilkovisky algebra

The Hochschild cohomology ring of a Frobenius algebra with semisimple Nakayama automorphism is a Batalin-Vilkovisky algebra
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具有半单中山自同构的 Frobenius 代数的 Hochschild 上同调环是 Batalin-Vilkovisky 代数

DOI:
10.1016/j.jalgebra.2015.09.018
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发表时间:
2014-05
期刊:
影响因子:
0.9
通讯作者:
er
er
中科院分区:
数学3区
文献类型:
--
作者:
Lambre, Thierry;Zhou, Guodong;Zimmerman, Alex;er

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与N. Kowalzig和U. Krähmer,证明了具有半单Nakayama自同构的Frobenius代数的Hochschild上同调环是Batalin-Vilkovisky代数,从而推广了T.有限维对称代数的Tradler。本文给出了一个判别条件,判定由关系式给出的Frobenius代数何时具有半单Nakayama自同构,并将其应用于已知的驯服Frobenius代数类.我们还提供了大量的例子,包括量子完全相交,有限维的Hopf代数定义在一个代数闭域的特征零和Koszul阿廷-Schelter正则代数的Koszul的Koszul的三维。
In analogy with a recent result of N. Kowalzig and U. Krähmer for twisted Calabi–Yau algebras, we show that the Hochschild cohomology ring of a Frobenius algebra with semisimple Nakayama automorphism is a Batalin–Vilkovisky algebra, thus generalizing a result of T. Tradler for finite dimensional symmetric algebras. We give a criterion to determine when a Frobenius algebra given by quiver with relations has semisimple Nakayama automorphism and apply it to some known classes of tame Frobenius algebras. We also provide ample examples including quantum complete intersections, finite dimensional Hopf algebras defined over an algebraically closed field of characteristic zero and the Koszul duals of Koszul Artin–Schelter regular algebras of dimension three.
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