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arXiv 0711.4499math.KTmath.ATmath.RA
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DG-代数与导子A-无限代数

DG-algebras and derived A-infinity algebras

Steffen Sagave

摘要:

一个微分分次代数可以看作是一个A-无穷代数。根据Kadeishvili的一个定理,域上的dga允许一个极小A-无穷代数的拟同构。引入了导子A-无穷代数的概念,证明了任意交换基环k上的任意dga A都等价于极小导子A-无穷代数.这样一个关于A的极小导出A-无穷代数模型是A的同调代数的k-投射分解以及满足适当关系的映射族。在A-无穷代数的情况下,有可能从最小导出的A-无穷代数模型恢复dga直到准同构。因此,我们所描述的结构提供了dga的准同构类型的完整描述。

英文摘要:

A differential graded algebra can be viewed as an A-infinity algebra. By a theorem of Kadeishvili, a dga over a field admits a quasi-isomorphism from a minimal A-infinity algebra. We introduce the notion of a derived A-infinity algebra and show that any dga A over an arbitrary commutative ground ring k is equivalent to a minimal derived A-infinity algebra. Such a minimal derived A-infinity algebra model for A is a k-projective resolution of the homology algebra of A together with a family of maps satisfying appropriate relations. As in the case of A-infinity algebras, it is possible to recover the dga up to quasi-isomorphism from a minimal derived A-infinity algebra model. Hence the structure we are describing provides a complete description of the quasi-isomorphism type of the dga.

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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