On the obstructed Lagrangian Floer theory

Cheol-Hyun Cho

Symplectic Geometry mathscidoc:1912.43240

Advances in Mathematics, 229, (2), 804-853, 2012.1
Lagrangian Floer homology in a general case has been constructed by Fukaya, Oh, Ohta and Ono, where they construct an A-algebra or an A-bimodule from Lagrangian submanifolds. They developed obstruction and deformation theories of the Lagrangian Floer homology theory. But for obstructed Lagrangian submanifolds, the standard Lagrangian Floer homology cannot be defined. We explore several well-known homology theories on these A-objects, which are Hochschild and cyclic homology for an A-objects and ChevalleyEilenberg or cyclic ChevalleyEilenberg homology for their underlying L-objects. We show that these homology theories are well-defined and invariant even in the obstructed cases. Due to the existence of m 0, the standard homological algebra does not work and we develop analogous homological algebra over Novikov fields. We provide computations of these homology
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  title={On the obstructed Lagrangian Floer theory},
  author={Cheol-Hyun Cho},
  booktitle={Advances in Mathematics},
Cheol-Hyun Cho. On the obstructed Lagrangian Floer theory. 2012. Vol. 229. In Advances in Mathematics. pp.804-853. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191221113129731919800.
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