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For questions about Fukaya categories (as introduced by Fukaya in 1993) and their structure; consider also related tags such as [floer-homology] or [lagrangian-submanifolds].

5 votes

Has anything precise been written about the Fukaya category and Lagrangian skeletons?

On this topic I've only seen Ganatra's notes from Paul's Talbot talk (see Scott's answer). An aspect of this, that a Fukaya category can behave in a sheafy way, is part of Nadler's proof that "microlo …
Martin Sleziak's user avatar
11 votes
Accepted

How to relate equivariant symplectic cohomology, Contact Homology, Cyclic Homology and Strin...

Some blah on symplectic homology vs. cohomology. There's an invariant $SH(M)$ of Liouville domains $M$ which some people call symplectic homology and some symplectic cohomology. This is the direct lim …
Tim Perutz's user avatar
  • 13.2k
15 votes
Accepted

Hochschild homology of Fukaya category in mirror symmetry

As Kevin comments, Hochschild homology and cohomology are defined for any $A_\infty$-category $\mathcal{A}$. That includes Fukaya categories of symplectic manifolds and dg enhancements of the bounded …
Tim Perutz's user avatar
  • 13.2k
11 votes

Comparison between Hamiltonian Floer cohomology and Lagrangian Floer cohomology of the diagonal

Michael's answer describes the sort of thing I had in mind when I brusquely dismissed this as "straightforward" in the earlier, big-picture-style answer that Daniel quoted. (Michael, thanks for explai …
Tim Perutz's user avatar
  • 13.2k
3 votes

Generator of a Fukaya category with certain properties

Even without the condition that $HF(L,L)$ is $A_\infty$-isomorphic to $H^\ast(L)$, your conditions are set up in such a way as to disable the standard tricks. This doesn't rule out the existence of ex …
Tim Perutz's user avatar
  • 13.2k
23 votes
Accepted

Hochschild (co)homology of Fukaya categories and (quantum) (co)homology

The statement that $HF^{\ast}(X,X)$ is isomorphic to $QH^\ast(X)$ is a version of the Piunikhin-Salamon-Schwarz (PSS) isomorphism (proved, under certain assumptions, in McDuff-Salamon's book "J-holomo …
Tim Perutz's user avatar
  • 13.2k
13 votes
Accepted

"Fourier-Mukai" functors for Fukaya categories?

I can't speak for these authors, but what I understand by a "Fourier-Mukai" transform between Fukaya categories is the functor between extended Fukaya categories associated with a Lagrangian correspon …
Tim Perutz's user avatar
  • 13.2k
10 votes

Are Fukaya categories Calabi-Yau categories?

At first sight, the Fukaya category has obvious cyclic symmetry, because the $A_\infty$ structure maps count points in spaces of rigid pseudo-holomorphic polygons subject to Lagrangian boundary condit …
Tim Perutz's user avatar
  • 13.2k
4 votes

Fukaya categories of hyperkahler reductions: general request for information

This sounds like a lovely topic for one or more thesis projects. The relevant definitions are in Seidel's book, as are powerful tools for describing Fukaya categories. The Wehrheim-Woodward functorial …
Tim Perutz's user avatar
  • 13.2k