3 citations · 8 across the 8 of their papers we have counts for
8 papers
Poisson Vertex Algebra of Seiberg-Witten Theory
Ahsan Z. Khan
The space of local operators in the -cohomology of the holomorphic-topological supercharge in a four-dimensional theory carries the structure of a Poisson vertex…
Poisson Vertex Algebras and Three-Dimensional Gauge Theory
Ahsan Z. Khan, Keyou Zeng
We introduce a mixed holomorphic-topological gauge theory in three dimensions associated to a (freely generated) Poisson vertex algebra. The -bracket of the PVA plays the role o…
On the Algebra of the Infrared with Twisted Masses
Ahsan Z. Khan, Gregory W. Moore
The Algebra of the Infrared \cite{Gaiotto:2015aoa} is a framework to construct local observables, interfaces, and categories of supersymmetric boundary conditions of massive $\math…
Categorical Pentagon Relations and Koszul Duality
Davide Gaiotto, Ahsan Khan
The Kontsevich-Soibelman wall-crossing formula is known to control the jumping behavior of BPS state counting indices in four-dimensional theories with supersymmetr…
On the -Category of a Holomorphic Moment Map
Ahsan Z. Khan
Let be a hyperKähler manifold equipped with a hyperKähler isometry, and let be a complex structure on . In this note, we study the -category of A-bran…
Holomorphic Surface Defects in Four-Dimensional Chern-Simons Theory
Ahsan Z. Khan
We derive the framing anomaly of four-dimensional holomorphic-topological Chern-Simons theory formulated on the product of a topological surface and the complex plane. We show that…
Categorical Wall-Crossing in Landau-Ginzburg Models
Ahsan Z. Khan, Gregory W. Moore
We describe how categorical BPS data including chain complexes of solitons, CPT pairings, and interior amplitudes jump across a wall of marginal stability in two-dimensional $\math…
Topological Field Theory Amplitudes for Fibration
Amer Iqbal, Ahsan Z. Khan, Babar A. Qureshi +2
We study the partition function 5D gauge theory with adjoint hypermultiplets and show that for massless adjoint hypermultiplets it is equal to the partition…