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math.RT2026
Fukaya categories of Coulomb branches as unique deformations
Jasper van de Kreeke
The symplectic geometry of Coulomb branches is complicated and it is particularly difficult to determine their Fukaya categories. Relative Fukaya categories present an approach to…
math.RT2025
The NilHecke schober
Jasper van de Kreeke
Perverse schobers can be used to describe Fukaya categories but are hard to axiomatize and construct. In this paper, we give an explicit construction of a perverse schober intended…
math.RT2025
Calabi-Yau techniques for Namikawa-Weyl groups
Jasper van de Kreeke
The field of symplectic singularities aims to build a 21st century Lie theory. A key development is the Namikawa-Weyl group, which generalizes the classical Weyl group of Lie algeb…