Name: Fukaya Categories: Coefficients, Skeleta, Stability conditions
Start: 2018-07-02T09:30:00+02:00
End: 2018-07-07T13:30:00+02:00
Location: IHES

lundi 2 juillet
- 09:30 → 10:00
  
  Welcome coffee 30m
- 10:00 → 11:00
  
  Introduction to Stability Program 1h
  
  Orateur: Maxim Kontsevich (IHES)
- 11:15 → 11:30
  
  Coffee Break 15m
- 11:30 → 12:30
  
  Towards a definition of the Fukaya-Seidel category with coefficients over the complex plane 1h
  
  In this segment of our joint work in progress with Haiden, Katzarkov and Pandit, we consider a graph in the plane. We propose a definition of the A-infinity category of objects over the graph, with coefficients in a fixed appropriate DG-category, including disk corrections corresponding to the regions in the plane cut out by the graph. We can write down an explicit set of A-infinity operations, and have a heuristic comparison with Abouzaid's definition that suggests why the A-infinity axioms should hold.
  
  Orateur: C. Simpson
- 12:45 → 14:00
  
  Buffet-lunch 1h 15m
- 14:00 → 15:00
  
  A note on the associativity of multiplicative structure of quantum product of divisor complement 1h
  
  Orateur: K. Fukaya
- 15:15 → 15:30
  
  Coffee break 15m
- 15:30 → 16:30
  
  Structural results in wrapped Floer theory 1h
  
  Orateur: S. Ganatra
mardi 3 juillet
- 09:30 → 10:00
  
  Welcome coffee 30m
- 10:00 → 11:00
  
  Fukaya category based on SFT 1h
  
  Orateur: Maxim Kontsevich (IHES)
- 11:15 → 11:30
  
  Coffee break 15m
- 11:30 → 12:30
  
  Perverse schobers, Fukaya categories with coefficients and the "algebra of the infrared" 1h
  
  Orateur: M. Kapranov
- 12:45 → 14:00
  
  Buffet-lunch 1h 15m
- 14:00 → 15:00
  
  HMS for SYZ singularities via immersed Lagrangians 1h
  
  Orateur: Mohammed Abouzaid
- 15:15 → 15:30
  
  Coffee break 15m
- 15:30 → 16:30
  
  Non-Kahler mirror symmetry: the Hopf surface 1h
  
  Orateur: Denis Auroux
- 16:45 → 17:45
  
  Enumeration of non-archimedean curves in higher dimensional log Calabi-Yau varieties 1h
  
  I will discuss the enumeration of non-archimedean curves in higher dimensional affine log Calabi-Yau varieties containing an open algebraic torus, part of my joint work with S. Keel. This generalizes the previously studied two-dimensional case, and includes cluster varieties arising from representation theory. Many new ideas are developed in order to go beyond the two-dimensional case. In my talk, I will explain various properties of the moduli spaces which lead to the enumeration. Moreover, I will introduce a new notion of “skeletal curves”, curves whose skeleton lies in the essential skeleton of the ambient log Calabi-Yau variety. Such curves play a special role in the theory.
  
  Orateur: T. Yue Yu
- 18:00 → 20:00
  
  Cocktail Party 2h
mercredi 4 juillet
- 09:30 → 10:00
  
  Welcome coffee 30m
- 10:00 → 11:00
  
  Planar case: harmonic paths in buildings 1h
  
  Orateur: Maxim Kontsevich (IHES)
- 11:00 → 11:15
  
  Coffee break 15m
- 11:15 → 12:15
  
  Spectral networks and stability conditions: finite and tame examples 1h
  
  Spectral networks were introduced in theoretical physics in order to count BPS states. They are graphs with additional algebraic data drawn on a surface and minimizing a weighted total length. Heuristically, they are degenerations of higher dimensional special Lagrangian submanifolds. The main mathematical conjecture about them is that they correspond to stable objects of a stability condition on a Fukaya-type category. I will illustrate how this works in some neat examples related to Dynkin quivers and stacky projective lines. This is an ongoing joint project with L. Katzarkov, M. Kontsevich, P. Pandit, and C. Simpson.
  
  Orateur: Fabian Haiden
- 12:30 → 13:30
  
  Toward a categorical Donaldson-Uhlenbeck-Yau correspondence 1h
  
  Orateur: Pranav Pandit
- 13:30 → 14:30
  
  Buffet-lunch 1h
jeudi 5 juillet
- 09:30 → 10:00
  
  Welcome coffee 30m
- 10:00 → 11:00
  
  Chekanov-Eliashberg dg-algebras for Weinstein domains in contact manifolds 1h
  
  Let W be a Weinstein manifold then the product of W and the real line is naturally a contact manifold. We consider contact embeddings of a small neighborhood a W-slice in this manifold and construct the Chekanov-Eliashberg dg-algebra of such embeddings. When W is a cotangent neighborhood of a smooth Legendrian the definition agrees with the Chekanov-Eliashberg algebra of the smooth Legendrian with coefficients in chains in the based loop space. The construction gives gluing formulas for Fukaya categories.
  
  Orateur: Tobias Ekholm
- 11:15 → 11:30
  
  Coffee break 15m
- 11:30 → 12:30
  
  Axiomatics of the wrapped Fukaya category 1h
  
  Orateur: Vivek Shende
- 12:45 → 14:00
  
  Buffet-lunch 1h 15m
- 14:00 → 15:00
  
  Schobers on orbifold Riemann surfaces 1h
  
  Orateur: Alexey Bondal
- 15:15 → 15:30
  
  Coffee break 15m
- 15:30 → 16:30
  
  Enhancement for categories 1h
  
  Orateur: Dmitry Kaledin
vendredi 6 juillet
- 09:30 → 10:00
  
  Welcome coffee 30m
- 10:00 → 11:00
  
  Self-organized criticality and tropical geometry 1h
  
  In this talk, I describe our joint work with Kalinin, Guzmán-Saenz, Prieto, Shkolnikov, and Kalinina involving the relation of systems in physics with Self-organized criticality (like earthquakes) and the mathematics of tropical geometry, in particular, we construct a continuous dynamical system in tropical geometry that exhibits self-organized criticality.
  
  Orateur: Ernesto Lupercio (Cinvestav - México)
- 11:15 → 11:30
  
  Coffee break 15m
- 11:30 → 12:30
  
  On the localizing invariants of derived categories of sheaves of modules 1h
  
  Orateur: Alexander Efimov
- 12:45 → 14:00
  
  Buffet-lunch 1h 15m
- 14:00 → 15:00
  
  Deformations of Calabi-Yau categories and Poisson brackets of functions 1h
  
  We explicate two deformation problems for a smooth Calabi-Yau category C, showing in particular that the complexes underlying the Lie algebras controlling these deformation problems are shifts of negative cyclic and of cylic chains of C. Using these results, we show that the natural map from cyclic chains of C to functions on the `moduli of objects’ M_C is a map of (shifted) Lie algebras with respect to the deformation-theoretic Lie structure on cyclic chains and the Poisson bracket on functions induced by the Calabi-Yau structure on C. Our results give a chain level generalisations of classical constructions of Goldman for moduli of local systems and of Hitchin for GL(n)-Higgs bundles. This is joint work with Nick Rozenblyum.
  
  Orateur: Chris Brav
- 15:15 → 15:30
  
  Coffee break 15m
- 15:30 → 16:30
  
  Toric Schobers and D-modules 1h
  
  Orateur: Paul Horja
samedi 7 juillet
- 10:00 → 11:00
  
  Non-commutative curve-counting invariants 1h
  
  In a joint work with L. Katzarkov to data A,P,G,T, where A and T are triangulated categories, we attach a set whose elements are equivalence classes of fully faithful exact functors (from A to T) with property P. The equivalence relation, which will be explained in the talk, depends on G. We are interested in counting and intersection of the elements in this set. In this talk I will give more details and some examples.
  
  Orateur: G. Dimitrov
- 11:15 → 12:15
  
  TBA 1h
  
  Orateur: A. Harder
- 12:30 → 13:30
  
  Doubling stops and spherical swaps 1h
  
  Orateur: Zack Sylvan

Fukaya Categories: Coefficients, Skeleta, Stability conditions

Marilyn and James Simons Conference Center

IHES