Branes, quivers, and the affine Grassmannian

A Bourget, JF Grimminger, A Hanany… - arXiv preprint arXiv …, 2023 - projecteuclid.org
Brane systems provide a large class of gauge theories that arise in string theory. This paper
demonstrates how such brane systems fit with a somewhat exotic geometric object, called …

Representations of shifted quantum affine algebras

D Hernandez - International Mathematics Research Notices, 2023 - academic.oup.com
We develop the representation theory of shifted quantum affine algebras and of their
truncations, which appeared in the study of quantized K-theoretic Coulomb branches of 3d …

Shifted Quantum Affine Algebras: Integral Forms in Type A

M Finkelberg, A Tsymbaliuk - Arnold Mathematical Journal, 2019 - Springer
We define an integral form of shifted quantum affine algebras of type A and construct
Poincaré–Birkhoff–Witt–Drinfeld bases for them. When the shift is trivial, our integral form …

BFN Springer theory

J Hilburn, J Kamnitzer, A Weekes - Communications in Mathematical …, 2023 - Springer
Given a representation N of a reductive group G, Braverman–Finkelberg–Nakajima have
defined a remarkable Poisson variety called the Coulomb branch. Their construction of this …

Symplectic resolutions, symplectic duality, and Coulomb branches

J Kamnitzer - Bulletin of the London Mathematical Society, 2022 - Wiley Online Library
Symplectic resolutions are an exciting new frontier of research in representation theory. One
of the most fascinating aspects of this study is symplectic duality: the observation that these …

Generators for Coulomb branches of quiver gauge theories

A Weekes - arXiv preprint arXiv:1903.07734, 2019 - arxiv.org
We study the Coulomb branches of $3 d $$\mathcal {N}= 4$ quiver gauge theories, focusing
on the generators for their quantized coordinate rings. We show that there is a surjective …

The quantum Hikita conjecture

J Kamnitzer, M McBreen, N Proudfoot - Advances in Mathematics, 2021 - Elsevier
The Hikita conjecture relates the coordinate ring of a conical symplectic singularity to the
cohomology ring of a symplectic resolution of the dual conical symplectic singularity. We …

Lie algebra actions on module categories for truncated shifted Yangians

J Kamnitzer, B Webster, A Weekes… - Forum of Mathematics …, 2024 - cambridge.org
We develop a theory of parabolic induction and restriction functors relating modules over
Coulomb branch algebras, in the sense of Braverman-Finkelberg-Nakajima. Our functors …

Gelfand-Tsetlin theory for rational Galois algebras

V Futorny, D Grantcharov, LE Ramirez… - Israel Journal of …, 2020 - Springer
In the present paper we study Gelfand-Tsetlin modules defined in terms of BGG differential
operators. The structure of these modules is described with the aid of the Postnikov-Stanley …

Coherent sheaves and quantum Coulomb branches II: quiver gauge theories and knot homology

B Webster - arXiv preprint arXiv:2211.02099, 2022 - arxiv.org
We continue our study of noncommutative resolutions of Coulomb branches in the case of
quiver gauge theories. These include the Slodowy slices in type A and symmetric powers in …