A reduction of the string bracket to the loop product
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2021
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| _version_ | 1866910578908332032 |
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| author | Kuribayashi, Katsuhiko Naito, Takahito Wakatsuki, Shun Yamaguchi, Toshihiro |
| author_facet | Kuribayashi, Katsuhiko Naito, Takahito Wakatsuki, Shun Yamaguchi, Toshihiro |
| contents | The negative cyclic homology for a differential graded algebra over the rational field has a quotient of the Hochschild homology as a direct summand if the $S$-action is trivial. With this fact, we show that the string bracket in the sense of Chas and Sullivan is reduced to the loop product followed by the BV operator on the loop homology provided the given manifold is BV exact. The reduction is indeed derived from the equivalence between the BV exactness and the triviality of the $S$-action. Moreover, it is proved that a Lie bracket on the loop cohomology of the classifying space of a connected compact Lie group possesses the same reduction. By using these results, we consider the non-triviality of string brackets. Another highlight is that a simply-connected space with positive weights is BV exact. Furthermore, the higher BV exactness is also discussed featuring the cobar-type Eilenberg-Moore spectral sequence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2109_10536 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | A reduction of the string bracket to the loop product Kuribayashi, Katsuhiko Naito, Takahito Wakatsuki, Shun Yamaguchi, Toshihiro Algebraic Topology K-Theory and Homology 55P50, 55P35, 55T20 The negative cyclic homology for a differential graded algebra over the rational field has a quotient of the Hochschild homology as a direct summand if the $S$-action is trivial. With this fact, we show that the string bracket in the sense of Chas and Sullivan is reduced to the loop product followed by the BV operator on the loop homology provided the given manifold is BV exact. The reduction is indeed derived from the equivalence between the BV exactness and the triviality of the $S$-action. Moreover, it is proved that a Lie bracket on the loop cohomology of the classifying space of a connected compact Lie group possesses the same reduction. By using these results, we consider the non-triviality of string brackets. Another highlight is that a simply-connected space with positive weights is BV exact. Furthermore, the higher BV exactness is also discussed featuring the cobar-type Eilenberg-Moore spectral sequence. |
| title | A reduction of the string bracket to the loop product |
| topic | Algebraic Topology K-Theory and Homology 55P50, 55P35, 55T20 |
| url | https://arxiv.org/abs/2109.10536 |