Perverse schobers, stability conditions and quadratic differentials

M Christ, F Haiden, Y Qiu - arXiv preprint arXiv:2303.18249, 2023 - arxiv.org
There are multiple classes of triangulated categories arising from marked surfaces whose
spaces of stability conditions are described by moduli spaces of quadratic differentials on …

Cluster theory of topological Fukaya categories

M Christ - arXiv preprint arXiv:2209.06595, 2022 - arxiv.org
We study a class of generalized cluster categories arising from relative Ginzburg algebras of
triangulated marked surfaces without punctures. We show that these categories describe $1 …

Relative Calabi-Yau structures and perverse schobers on surfaces

M Christ - arXiv preprint arXiv:2311.16597, 2023 - arxiv.org
We discuss relative Calabi-Yau structures on functors between $ R $-linear stable $\infty $-
categories, with $ R $ any $\mathbb {E} _\infty $-ring spectrum, generalizing previous …

Moduli spaces of quadratic differentials: Abel-Jacobi map and deformation

Y Qiu - arXiv preprint arXiv:2403.10265, 2024 - arxiv.org
We study the moduli space of quadratic differentials with prescribed singularities
parameterized by a decorated marked surface with punctures (DMSp), where simple zeros …

Perverse schobers, stability conditions and quadratic differentials II: relative graded Brauer graph algebras

M Christ, F Haiden, Y Qiu - arXiv preprint arXiv:2407.00154, 2024 - arxiv.org
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) Calabi …

[图书][B] Perverse schobers and cluster categories

M Christ - 2023 - search.proquest.com
We introduce a framework for the description of categorified perverse sheaves, called
perverse schobers, on surfaces with boundary in terms of constructible sheaves of stable∞ …

[PDF][PDF] Higher category theory and the (additive) categorification of cluster algebras

M Christ - merlinchrist.eu
Lecture 3: Constructible sheaves on graphs We discuss how to describe constructible
sheaves on ribbon graphs in terms of functors out of the exit-path category. Such ribbon …

[PDF][PDF] Perverse schobers in representation theory

M Christ - merlinchrist.eu
The goal of this short course is to give an introduction to perverse schobers on surfaces and
explain applications to the representation theory of dg-algebras such as Ginzburg algebras …