Extensions and Deformations of Algebras with Higher Derivations

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作者
Apurba Das
机构
[1] Indian Institute of Technology,Department of Mathematics and Statistics
关键词
Higher derivations; AssHDer pairs; Hochschild cohomology; Extensions; Formal deformations; 16E40; 16S80; 16W25;
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摘要
Higher derivations on an associative algebra generalize higher-order derivatives. We call a tuple consisting of an algebra and a higher derivation on it by an AssHDer pair. We define cohomology for AssHDer pairs with coefficients in a representation. Next, we study central extensions of an AssHDer pair and relate them with the second cohomology group of the AssHDer pair. Finally, we consider deformations of AssHDer pairs that are governed by the cohomology with self-coefficient.
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页码:379 / 398
页数:19
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