Product and Coproduct on Fixed Point Floer Homology of Positive Dehn Twists

Fuente: arXiv
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Main Authors: Yao, Yuan, Zhao, Ziwen
Format: Preprint
Published: 2022
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author Yao, Yuan
Zhao, Ziwen
author_facet Yao, Yuan
Zhao, Ziwen
contents We compute the product and coproduct structures on the fixed point Floer homology of iterations on the single Dehn twist, subject to some mild topological restrictions. We show that the resulting product and coproduct structures are determined by the product and coproduct on Morse homology of the complement of the twist region, together with certain sectors of product and coproduct structures on the symplectic homology of $T^*S^1$. The computation is done via a direct enumeration of $J-$holomorphic sections: we use a local energy inequality to show that some of the putative holomorphic sections do not exist, and we use a gluing construction plus some Morse-Bott theory to construct the sections we could not rule out.
format Preprint
id arxiv_https___arxiv_org_abs_2205_14516
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Product and Coproduct on Fixed Point Floer Homology of Positive Dehn Twists
Yao, Yuan
Zhao, Ziwen
Symplectic Geometry
57R58
We compute the product and coproduct structures on the fixed point Floer homology of iterations on the single Dehn twist, subject to some mild topological restrictions. We show that the resulting product and coproduct structures are determined by the product and coproduct on Morse homology of the complement of the twist region, together with certain sectors of product and coproduct structures on the symplectic homology of $T^*S^1$. The computation is done via a direct enumeration of $J-$holomorphic sections: we use a local energy inequality to show that some of the putative holomorphic sections do not exist, and we use a gluing construction plus some Morse-Bott theory to construct the sections we could not rule out.
title Product and Coproduct on Fixed Point Floer Homology of Positive Dehn Twists
topic Symplectic Geometry
57R58
url https://arxiv.org/abs/2205.14516