Speaker
Amihay Hanany
Description
The Coulomb branch of 3d N=4 gauge theory is a new construction of symplectic singularities.
This talk will cover operations on quivers that start with a given symplectic singularity and ends with a new symplectic singularity, while the relation between the two is understood geometrically.
These operations include
— Quiver subtraction where the resulting singularity is a degeneration of a bigger singularity, thus revealing the stratification of symplectic leaves.
— Quiver subtraction where the resulting singularity is a HK quotient.
These combinatorial operations extend to orthosymplectic quivers and few examples of this type will be discussed.
It is hoped that such operations can be further extended to Gorenstein singularities.
