Mon
05
Oct
SCGP: Program Talk: Francisco Torres de lizaur
  •   11:15am - 12:15pm
  • in SCGP 313

Speaker:   Francisco Torres de lizaur
Title:   Remarks on Statistical Hydrodynamics

Mon
05
Oct
Symplectic Geometry, Gauge Theory, and Low-Dimensional Topology Seminar: Symplectic Geometry, Gauge Theory, and Low-Dimensional Topology Seminar: Roman Krutowski - On Fukaya categories of cotangent bundles of global quotient orbifolds
  •   12:30pm - 1:55pm
  • in Math P-131

Speaker:   Roman Krutowski

Abstract:  
To any global quotient orbifold [X/G] provided by an effective action of a finite group G on a complex manifold X by biholomorphisms, one associates its Hecke algebra. The Hecke algebra is a deformation of the group algebra of the orbifold fundamental group of [X/G].

I will explain that, under some assumptions, the wrapped Fukaya category of the cotangent bundle T^*[X/G] recovers the orbifold Hecke algebra, as the 0-th cohomology of the endomorphisms of a regular fiber. One of the essential tools that we develop is the novel result on the obstructions to smoothings of nodal orbicurves. The talk reports on the joint work with Honda, Tian, and Yuan

Tue
06
Oct
SCGP: Program Talk: Sergey Nazarenko
  •   11:15am - 12:15pm
  • in SCGP 313

Speaker:   Sergey Nazarenko
Title:   Wave and vortex turbulence in 2D BEC

Wed
07
Oct
SCGP: Fundamentals for the Theory of Atoms and Related Topics
  •  
  • in SCGP 102

Fundamentals for the Theory of Atoms and Related Topics, October 7–9, 2026
A Three-Day School and Research Workshop
October 7–9, 2026
For the full schedule please visit: https://scgp.stonybrook.edu/archives/48906

Wed
07
Oct
SCGP: Physics Seminar: Andrei Katsevich
  •   2:00pm - 3:00pm
  • in SCGP 313
Wed
07
Oct
Algebraic Geometry Seminar: Algebraic Geometry Seminar: Yongnam Lee - Degree of irrationality of properly elliptic surfaces
  •   4:00pm - 5:00pm

Speaker:   Yongnam Lee

Abstract:  
In this talk, we discuss the degree of irrationality of properly elliptic surfaces with a section. We establish a sharp lower bound using the canonical bundle formula and the Cayley–Bacharach property. We also study how the degree of irrationality varies in moduli. In particular, a very general properly elliptic surface with a section over a curve of genus at least two has degree of irrationality at least four, whereas certain special families with small holomorphic Euler characteristic have degree of irrationality two. We then investigate the case of properly elliptic surfaces with vanishing holomorphic Euler characteristic. If time permits, we will also discuss properly elliptic surfaces without a section. This is joint work with De-Qi Zhang.

Fri
09
Oct
Drop Down 4 PM deadline
  •  

Last day to submit an approved adjustment form for selected AMS, MAT, MAP and PHY courses to the Office of Registrar.

Fri
09
Oct
Dynamical Systems Seminar: Jeremy Kahn - TBA
  •   2:15pm - 3:15pm

Speaker:   Jeremy Kahn

Mon
12
Oct
Fall Break: No Classes in Session
  •  
Mon
12
Oct
Columbus Day
  •  

Public holiday

Tue
13
Oct
SCGP: C. N. Yang Memorial Symposium
  •  
  • in 102 and 103

For the full schedule of talks please visit: https://scgp.stonybrook.edu/archives/49051