Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

(This is a somewhat old-fashioned talk.) I will review the definition of symplectic cohomology and its deformation, for the complement of a smooth anticanonical divisor in a monotone symplectic manifold. The deformed group, with the parameter q inverted, has been the subject of extensive work by Borman-Sheridan-Varolgunes, but there are additional aspects that are as yet not fully understood.