2 citations · 2 across the 6 of their papers we have counts for
7 papers
Quasimap critical cohomology, Coulomb branches, and quantum groups
Tommaso Maria Botta, Spencer Tamagni
This article presents a systematic study of the critical cohomology of $\QM^ξ(\bbP^1, X)$, the moduli space of based quasimaps from $\bbP^1$ to a Nakajima quiver variety . We de…
Quasimaps to Nakajima varieties as critical loci
Spencer Tamagni
is a Nakajima quiver variety. In this note we report the observation that the space parameterizing quasimaps from to , sending infinity to a given point, may…
A Scattering Transform for Noncommutative Instantons
Spencer Tamagni
We give a detailed and mathematically rigorous analysis of the path integrals of chiral fermions supported on holomorphic curves on in a general noncommutative ins…
Nonabelian shift operators and shifted Yangians
Spencer Tamagni
We introduce nonabelian analogs of shift operators in the enumerative theory of quasimaps. We apply them on the one hand to strengthen the emerging analogy between enumerative geom…
Coulomb Branches in 3d Revisited
Spencer Tamagni
Using ideas from the gauge theory approach to the geometric Langlands program, we revisit supersymmetric localization with monopole operators in 3d supersymmetric…
Stable Envelopes, Vortex Moduli Spaces, and Verma Modules
Spencer Tamagni
We explicitly construct K-theoretic and elliptic stable envelopes for certain moduli spaces of vortices, and apply this to enumerative geometry of rational curves in these varietie…
Electrostatics and Riemann Surfaces
Spencer Tamagni, Costas Efthimiou
Using techniques from geometry and complex analysis in their simplest form, we present a derivation of electric fields on surfaces with non-trivial topology. A byproduct of this an…