3 papers
hep-th2025
The local supersymmetries of a stack of branes
Raphaël Dulac, Yixuan Li
Local supersymmetries have been a guiding principle to construct smooth horizonless supergravity solutions. By computing brane densities from the brane low-energy effective action,…
math.SG2024
Quiver Hecke algebras from Floer homology in Couloumb branches
Mina Aganagic, Ivan Danilenko, Yixuan Li +2
Homology theories categorifying quantum group link invariants are known to be governed by the representation theory of quiver Hecke algebras, also called KLRW algebras. Here we sho…
hep-th2024
The 1/4-BPS building blocks of brane interactions
Ben Eckardt, Yixuan Li
We study, from the perspective of supersymmetry and space-time Killing spinors, the local brane densities involved in 1/4-BPS intersecting brane systems. In particular, we classify…