Exact results in two-dimensional (2, 2) supersymmetric gauge theories with boundary

K Hori, M Romo - arXiv preprint arXiv:1308.2438, 2013 - arxiv.org
We compute the partition function on the hemisphere of a class of two-dimensional (2, 2)
supersymmetric field theories including gauged linear sigma models. The result provides a …

Spherical DG-functors

R Anno, T Logvinenko - Journal of the European Mathematical Society, 2017 - ems.press
Spherical DG-functors Page 1 DOI 10.4171/JEMS/724 J. Eur. Math. Soc. 19, 2577–2656 c
European Mathematical Society 2017 Rina Anno · Timothy Logvinenko Spherical DG-functors …

Noncommutative deformations and flops

W Donovan, M Wemyss - 2016 - projecteuclid.org
We prove that the functor of noncommutative deformations of every flipping or flopping
irreducible rational curve in a 3-fold is representable, and hence, we associate to every such …

Spherical adjunctions of stable -categories and the relative S-construction

T Dyckerhoff, M Kapranov, V Schechtman… - Mathematische …, 2024 - Springer
We develop the theory of semi-orthogonal decompositions and spherical functors in the
framework of stable∞-categories. We study the relative Waldhausen S-construction S∙(F) of …

Window shifts, flop equivalences and Grassmannian twists

W Donovan, E Segal - Compositio Mathematica, 2014 - cambridge.org
We introduce a new class of autoequivalences that act on the derived categories of certain
vector bundles over Grassmannians. These autoequivalences arise from Grassmannian …

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 …

Orlov and Viterbo functors in partially wrapped Fukaya categories

Z Sylvan - arXiv preprint arXiv:1908.02317, 2019 - arxiv.org
We study two functors between (partially) wrapped Fukaya categories. The first is the Orlov
functor from the Fukaya category of a stop to the Fukaya category of the ambient sector. We …

N-spherical functors and categorification of Euler's continuants

T Dyckerhoff, M Kapranov, V Schechtman - arXiv preprint arXiv …, 2023 - arxiv.org
Euler's continuants are universal polynomials expressing the numerator and denominator of
a finite continued fraction whose entries are independent variables. We introduce their …

Serre functors and dimensions of residual categories

A Kuznetsov, A Perry - arXiv preprint arXiv:2109.02026, 2021 - arxiv.org
We describe in terms of spherical twists the Serre functors of many interesting
semiorthogonal components, called residual categories, of the derived categories of …

Higgs-Coulomb correspondence and Wall-Crossing in abelian GLSMs

K Aleshkin, CCM Liu - arXiv preprint arXiv:2301.01266, 2023 - arxiv.org
We compute I-functions and central charges for abelian GLSMs using virtual matrix
factorizations of Favero and Kim. In the Calabi-Yau case we provide analytic continuation for …