arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1502.03119math.DG
收藏

dg-向量丛的Atiyah类

The Atiyah class of a dg-vector bundle

Rajan Amit Mehta, Mathieu Stiénon, Ping Xu

摘要:

引入微分分次向量丛关于微分分次李代数体的Atiyah类和Todd类的概念。证明了具有同调向量场$Q$的dg-流形上的向量场空间存在一个以Lie导数$L_Q$为一元括号,以无挠仿射联络对应的Atiyah上圈为二元括号的L-无穷代数结构.

英文摘要:

We introduce the notions of Atiyah class and Todd class of a differential graded vector bundle with respect to a differential graded Lie algebroid. We prove that the space of vector fields on a dg-manifold with homological vector field $Q$ admits a structure of L-infinity algebra with the Lie derivative $L_Q$ as unary bracket, and the Atiyah cocycle corresponding to a torsion-free affine connection as binary bracket.

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。

↑