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arXiv 1901.04850math.ATmath.QA
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小束操作

The Little Bundles Operad

Lukas Müller, Lukas Woike

摘要:

Hurwitz空间是辫群作用在穿孔平面上主丛模空间上的同伦映射。通过考虑这个同伦商的某个模型,我们建立了一个非球面拓扑操作数,我们称之为小丛操作数。作为我们的主要结果,我们描述了这个操作作为一个群值操作的生成元和关系,并证明了范畴小丛代数正是Turaev的交叉范畴。此外,我们还证明了同伦二维等变拓扑域论在圆上的求值产生一个直到相干同伦的小丛代数。

英文摘要:

Hurwitz spaces are homotopy quotients of the braid group action on the moduli space of principal bundles over a punctured plane. By considering a certain model for this homotopy quotient we build an aspherical topological operad that we call the little bundles operad. As our main result, we describe this operad as a groupoid-valued operad in terms of generators and relations and prove that the categorical little bundles algebras are precisely Turaev's crossed categories. Moreover, we prove that the evaluation on the circle of a homotopical two-dimensional equivariant topolological field theory yields a little bundles algebra up to coherent homotopy.

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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