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We establish a homology relation for the Deligne-Mumford moduli spaces of real curves which lifts to a WDVV-type relation for real Gromov-Witten invariants of real symplectic manifolds; we also obtain a vanishing theorem for these…

Symplectic Geometry · Mathematics 2018-02-21 Penka Georgieva , Aleksey Zinger

The paper is devoted to the mathematical aspects of topological quantum field theory and its applications to enumerative problems of algebraic geometry. In particular, it contains an axiomatic treatment of Gromov-Witten classes, and a…

High Energy Physics - Theory · Physics 2009-10-28 M. Kontsevich , Yu. Manin

We introduce Gromov-Witten invariants with naive tangency conditions at the marked points of the source curve. We then establish an explicit formula which expresses Gromov-Witten invariants with naive tangency conditions in terms of…

Algebraic Geometry · Mathematics 2023-10-23 Felix Janda , Tony Yue Yu

We state and prove a topological recursion relation that expresses any genus-g Gromov-Witten invariant of a projective manifold with at least a (3g-1)-st power of a cotangent line class in terms of invariants with fewer cotangent line…

Algebraic Geometry · Mathematics 2007-05-23 Andreas Gathmann

This is a brief review of recent progress in constructing solutions to the matrix model Virasoro equations. These equations are parameterized by a degree n polynomial W_n(x), and the general solution is labeled by an arbitrary function of…

High Energy Physics - Theory · Physics 2008-11-26 A. Alexandrov , A. Mironov , A. Morozov

An algorithm to determine all the Gromov-Witten invariants of any smooth projective curve was obtained by Okounkov and Pandharipande in 2006. They identified stationary invariants with certain Hurwitz numbers and then presented Virasoro…

Algebraic Geometry · Mathematics 2022-05-26 Alexandr Buryak

A projected Gromov-Witten variety is the union of all rational curves of fixed degree that meet two opposite Schubert varieties in a homogeneous space X = G/P. When X is cominuscule we prove that the map from a related Gromov-Witten variety…

Algebraic Geometry · Mathematics 2017-06-12 Anders S. Buch , Pierre-Emmanuel Chaput , Leonardo C. Mihalcea , Nicolas Perrin

We show that direct limit completions of vertex tensor categories inherit vertex and braided tensor category structures, under conditions that hold for example for all known Virasoro and affine Lie algebra tensor categories. A consequence…

Quantum Algebra · Mathematics 2022-02-17 Thomas Creutzig , Robert McRae , Jinwei Yang

The present note overviews our recent construction of real Gromov-Witten theory in arbitrary genera for many real symplectic manifolds, including the odd-dimensional projective spaces and the renowned quintic threefold, its properties, and…

Algebraic Geometry · Mathematics 2015-12-23 Penka Georgieva , Aleksey Zinger

In a recent paper, we obtained a WDVV-type relation for real genus 0 Gromov-Witten invariants with conjugate pairs of insertions; it specializes to a complete recursion in the case of odd-dimensional projective spaces. This note provides…

Algebraic Geometry · Mathematics 2015-09-11 Penka Georgieva , Aleksey Zinger

The Virasoro constraints play the important role in the study of matrix models and in understanding of the relation between matrix models and CFTs. Recently the localization calculations in supersymmetric gauge theories produced new…

High Energy Physics - Theory · Physics 2015-12-03 Anton Nedelin , Maxim Zabzine

We establish new universal equations for higher genus Gromov-Witten invariants of target manifolds, by studying both the Chern character and Chern classes of the Hodge bundle on the moduli space of curves. As a consequence, we find new…

Algebraic Geometry · Mathematics 2024-04-03 Felix Janda , Xin Wang

This paper is devoted to investigating the structure theory of a class of not-finitely graded Lie superalgebras related to generalized super-Virasoro algebras. In particular, we completely determine the derivation algebras, the automorphism…

Rings and Algebras · Mathematics 2016-07-19 Juanjuan Li , Guangzhe Fan

We construct positive-genus analogues of Welschinger's invariants for many real symplectic manifolds, including the odd-dimensional projective spaces and the renowned quintic threefold. In some cases, our invariants provide lower bounds for…

Symplectic Geometry · Mathematics 2018-02-27 Penka Georgieva , Aleksey Zinger

In this survey, we report on progress concerning families of projective curves with fixed number and fixed (topological or analytic) types of singularities. We are, in particular, interested in numerical, universal and asymptotically proper…

Algebraic Geometry · Mathematics 2007-05-23 Gert-Martin Greuel , Christoph Lossen , Eugenii Shustin

Random tensor models for a generic complex tensor generalize matrix models in arbitrary dimensions and yield a theory of random geometries. They support a 1/N expansion dominated by graphs of spherical topology. Their Schwinger Dyson…

High Energy Physics - Theory · Physics 2015-06-04 Razvan Gurau

Extending results for space curves we establish bounds for the cohomology of a non-degenerate curve in projective $n$-space. As a consequence, for any given $n$ we determine all possible pairs $(d, g)$ where $d$ is the degree and $g$ is the…

Algebraic Geometry · Mathematics 2007-05-23 Uwe Nagel

For any non-degenerate, quasi-homogeneous hypersurface singularity, we describe a family of moduli spaces, a virtual cycle, and a corresponding cohomological field theory associated to the singularity. This theory is analogous to…

Algebraic Geometry · Mathematics 2012-07-27 Huijun Fan , Tyler J. Jarvis , Yongbin Ruan

The derivation algebras, automorphism groups and second cohomology groups of the generalized loop Schr\"{o}dinger-Virasoro algebras are completely determined in this paper.

Quantum Algebra · Mathematics 2015-09-08 Haibo Chen , Guangzhe Fan , Jianzhi Han , Yucai Su

In this paper, we define genus-zero relative Gromov--Witten invariants with negative contact orders. Using this, we construct relative quantum cohomology rings and Givental formalism. A version of Virasoro constraints also follows from it.

Algebraic Geometry · Mathematics 2019-11-15 Honglu Fan , Longting Wu , Fenglong You