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We introduce K-theoretic Gromov-Witten invariants of algebraic orbifold target spaces. Using the methods developed by Givental-Tonita we characterize Giventals Lagrangian cone of quantum K theory of orbifolds in terms of the cohomological…

Algebraic Geometry · Mathematics 2016-10-05 Valentin Tonita , Hsian-Hua Tseng

We give an introduction to partially wrapped Fukaya categories of surfaces with orbifold singularities. Dissecting an orbifold surface $\mathbf S$ into polygons, certain dissections give rise to formal generators, inducing a triangulated…

Representation Theory · Mathematics 2026-02-20 Severin Barmeier , Zhengfang Wang

The goal of this article is to motivate and describe how Gromov-Witten theory can and has provided tools to understand the moduli space of curves. For example, ideas and methods from Gromov-Witten theory have led to both conjectures and…

Algebraic Geometry · Mathematics 2007-05-23 Ravi Vakil

We study the Galois descent of semi-affinoid non-archimedean analytic spaces. These are the non-archimedean analytic spaces which admit an affine special formal scheme as model over a complete discrete valuation ring, such as for example…

Algebraic Geometry · Mathematics 2018-10-16 Lorenzo Fantini , Daniele Turchetti

These notes constitute a survey on the geometric properties of globally subanalytic sets. We start with their definition and some fundamental results such as Gabrielov's Complement Theorem or existence of cell decompositions. We then give…

Algebraic Geometry · Mathematics 2025-08-01 Guillaume Valette

For smooth complete intersections in the projective spaces, we use the deformation invariance of Gromov-Witten invariants and results in classical invariant theory to study the symmetric reduction of the WDVV equation by the monodromy…

Algebraic Geometry · Mathematics 2025-01-17 Xiaowen Hu

We give explicitly in the closed formulae the genus zero primary potentials of the three 6-dimensional FJRW theories of the simple-elliptic singularity $\tilde E_7$ with the non-maximal symmetry groups. For each of these FJRW theories we…

Algebraic Geometry · Mathematics 2017-11-15 Alexey Basalaev

We define for every affine Coxeter graph a certain factor group of the associated Artin group and prove that some of these groups appear as orbifold fundamental groups of moduli spaces. Examples are the moduli space of nonsingular cubic…

Algebraic Geometry · Mathematics 2007-06-13 Eduard Looijenga

Using the Morita-type embedding, we show that any exact category with enough projectives has a realization as a (pre)resolving subcategory of a module category. When the exact category has enough injectives, the image of the embedding can…

Representation Theory · Mathematics 2019-07-30 Haruhisa Enomoto

We set up a formalism of Maurer-Cartan moduli sets for L-infinity algebras and associated twistings based on the closed model category structure on formal differential graded algebras (a.k.a. differential graded coalgebras). Among other…

Algebraic Topology · Mathematics 2012-12-11 Andrey Lazarev

We provide a new condition for an absolutely almost simple algebraic group to have good reduction with respect to a discrete valuation of the base field which is formulated in terms of the existence of maximal tori with special properties.…

Number Theory · Mathematics 2023-12-15 Vladimir I. Chernousov , Andrei S. Rapinchuk , Igor A. Rapinchuk

The geometric models for the module category and derived category of any gentle algebra were introduced to realize the objects in module category and derived category by permissible curves and admissible curves respectively. The present…

Representation Theory · Mathematics 2023-08-15 Yu-Zhe Liu , Chao Zhang , Houjun Zhang

Borisov-Joyce constructed a real virtual cycle on compact moduli spaces of stable sheaves on Calabi-Yau 4-folds, using derived differential geometry. We construct an algebraic virtual cycle. A key step is a localisation of Edidin-Graham's…

Algebraic Geometry · Mathematics 2025-07-17 Jeongseok Oh , Richard P. Thomas

On a threefold with trivial canonical bundle, Kuranishi theory gives an algebro-geometry construction of the (local analytic) Hilbert scheme of curves at a smooth holomorphic curve as a gradient scheme, that is, the zero-scheme of the…

Algebraic Geometry · Mathematics 2007-05-23 Herbert Clemens

For a smooth projective curve, we derive a closed formula for the generating series of its Gromov--Witten invariants in genus $g$ and degree zero. It is known that the calculation of these invariants can be reduced to that of the…

Algebraic Geometry · Mathematics 2023-08-31 Di Yang

We prove a localization formula for the moduli space of stable relative maps. As an application, we prove that all codimension i tautological classes on the moduli space of stable pointed curves vanish away from strata corresponding to…

Algebraic Geometry · Mathematics 2007-05-23 Tom Graber , Ravi Vakil

We introduce a generalization of tilting modules of finite projective dimension, projectively Wakamatsu tilting modules, which are self-orthogonal and Ext-progenerators in their Ext-perpendicular categories. Under a certain finiteness…

Representation Theory · Mathematics 2023-04-10 Haruhisa Enomoto

Gordian complex of knots was defined by Hirasawa and Uchida as the simplicial complex whose vertices are knot isotopy classes in $\mathbb{S}^3$. Later Horiuchi and Ohyama defined Gordian complex of virtual knots using $v$-move and forbidden…

Geometric Topology · Mathematics 2020-11-09 Amrendra Gill , Madeti Prabhakar , Andrei Vesnin

We use genus zero free energy functions of Hermitian matrix models to define spectral curves and their special deformations. They are special plane curves defined by formal power series with integral coefficients generalizing the Catalan…

Mathematical Physics · Physics 2018-10-10 Jian Zhou

We study truncated gauge-orbits through principal parts of irregular-singular connection germs, in the untwisted/unramified setting: for any connected complex reductive structure group $G$, in the general multilevel case. In particular, we…

Quantum Algebra · Mathematics 2026-05-01 Damien Calaque , Giovanni Felder , Gabriele Rembado , Richard Wentworth