2 papers
math.RT2026
Perverse schobers, stability conditions and quadratic differentials II: relative graded Brauer graph algebras
Merlin Christ, Fabian Haiden, Yu Qiu
We introduce a class of dg-algebras which generalize the classical Brauer graph algebras. They are constructed from mixed-angulations of surfaces and often admit a (relative) Calab…
math.RT2025
Quadratic Differentials as Stability Conditions of Graded Skew-gentle Algebras
Suiqi Lu, Yu Qiu, Dongjian Wu
We prove that the principal component of the exchange graph of hearts of a graded skew-gentle algebra can be identified with the corresponding exchange graph of S-graphs, using the…