Coulomb Branch Varieties (1145-1315, Bayes Centre Level 5 - room booking tbc)

15/10 **Coulomb Branch Varieties I - construction & properties ** (Iain + Dougal + Ross)

29/10 **Coulomb Branch Varieties II - examples** (Iain + Dougal + Ross)

Braverman-Finkelberg, Coulomb branches of 3-dimensional gauge theories and related structures.

Braverman-Finkelberg-Nakajima, Towards a mathematical definition of Coulomb branches of 3-dimensional N = 4 gauge theories, II

Braverman-Finkelberg-Nakajima, Coulomb branches of 3d N = 4 quiver gauge theories and slices in the affine Grassmannian

Nakajima, Introduction to a provisional mathematical definition of Coulomb branches of 3-dimensional N = 4 gauge theories

Nakajima, Towards a mathematical definition of Coulomb branches of 3-dimensional N =4 gauge theories, I

Nakajima, Questions on provisional Coulomb branches of 3-dimensional N = 4 gauge theories.

12/11 **Symplectic Varieties and their Resolutions and Quantisations** (Gwyn)

26/11 **Symplectic Duality and Koszul Duality** (Andrea)

Bernstein-Ginzburg-Soergel, Koszul Duality Patterns in Representation Theory.

Braden-Licata-Proudfoot-Webster, Quantizations of conical symplectic resolutions II: category O and symplectic duality.

9/12 **Can someone do any physics about what underlies this** (???)

Seiberg and Witten, Gauge Dynamics And Compactification To Three Dimensions

Bullimore, Dimofte, and Gaiotto, The Coulomb Branch of 3d N = 4 Theories

Bullimore, Dimofte, Gaiotto, and Hilburn, Boundaries, Mirror Symmetry, and Symplectic Duality in 3d N=4 Gauge Theory

Bullimore, Ferrari, and Kim, Twisted Indices of 3d N = 4 Gauge Theories and Enumerative Geometry of Quasi-Maps

13/1 onwards: **Questions and actually doing some new work! Plus visitors....**