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math.RT2025
Geometric models of simple Lie algebras via singularity theory
Cheol-Hyun Cho, Wonbo Jeong, Beom-Seok Kim
It is well-known that ADE Dynkin diagrams classify both the simply-laced simple Lie algebras and simple singularities. We introduce a polygonal wheel in a plane for each case of AD…
math.RT2024
Canonical form of matrix factorizations from Fukaya category of surface
Cheol-Hyun Cho, Kyungmin Rho
This paper concerns homological mirror symmetry for the pair-of-pants surface (A-side) and the non-isolated surface singularity (B-side). Burban-Drozd classified indecompos…