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We use stable graphs to package the $\mathrm{NMSP}$ relations. Our tools are the $S$ matrix of the $\mathcal{O}(5)$-twisted $ \mathbb P^{\mathrm N+4}$ equivariant GW theory, and the $R$ matrix obtained from the stablization of the theory's…

Algebraic Geometry · Mathematics 2018-10-01 Huai-Liang Chang , Shuai Guo , Jun Li

For each positive rational number $\epsilon$, we define $K$-theoretic $\epsilon$-stable quasimaps to certain GIT quotients $W\sslash G$. For $\epsilon>1$, this recovers the $K$-theoretic Gromov-Witten theory of $W\sslash G$ introduced in…

Algebraic Geometry · Mathematics 2016-02-23 Hsian-Hua Tseng , Fenglong You

Let $G$ be a finite group with $2$-Sylow subgroup of order less than or equal to 16. For such a $G$, we prove a quantified version of Quillen's uniform $\mathcal{F}_p$-isomorphism theorem, which holds uniformly for all $G$-spaces. We do…

Algebraic Topology · Mathematics 2020-04-02 Koenraad van Woerden

This is the second part of the project toward an effective algorithm to evaluate all genus Gromov-Witten invariants of quintic Calabi-Yau threefolds. In this paper, the localization formula is derived, and algorithms toward evaluating these…

Algebraic Geometry · Mathematics 2019-03-19 Huai-Liang Chang , Jun Li , Wei-Ping Li , Chiu-Chu Melissa Liu

In this paper we study the Real Gromov-Witten theory of local 3-folds over Real curves. We show that this gives rise to a 2-dimensional Klein TQFT defined on an extension of the category of unorientable surfaces. We use this structure to…

Symplectic Geometry · Mathematics 2021-10-26 Penka Georgieva , Eleny-Nicoleta Ionel

This article presents a formula for products of Schubert classes in the quantum cohomology ring of the Grassmannian. We introduce a generalization of Schur symmetric polynomials for shapes that are naturally embedded in a torus. Then we…

Combinatorics · Mathematics 2007-05-23 Alexander Postnikov

We compute the relative orbifold Gromov-Witten invariants of $[\mathbb{C}^2/\mathbb{Z}_{n+1}]\times \mathbb{P}^1$, with respect to vertical fibers. Via a vanishing property of the Hurwitz-Hodge bundle, 2-point rubber invariants are…

Algebraic Geometry · Mathematics 2022-03-09 Zijun Zhou , Zhengyu Zong

We use the formalism of traces in higher categories to prove a common generalization of the holomorphic Atiyah-Bott fixed point formula and the Grothendieck-Riemann-Roch theorem. The proof is quite different from the original one proposed…

Algebraic Geometry · Mathematics 2019-06-27 Grigory Kondyrev , Artem Prikhodko

We calculate the genus 1 Gromov-Witten theory of the Hilbert scheme $\mathsf{Hilb}^n(\mathbb{C}^2)$ of points in the plane. The fundamental 1-point invariant (with a divisor insertion) is calculated using a correspondence with the families…

Algebraic Geometry · Mathematics 2025-09-03 Aitor Iribar Lopez , Rahul Pandharipande , Hsian-Hua Tseng

We study some classes of semi-linear differential equations including both well-posed and ill-posed cases that can generate cocycles (or cocycle correspondences with generating cocycles). Under exponential dichotomy condition with other…

Dynamical Systems · Mathematics 2019-03-20 DeLiang Chen

In this article we formulate and prove sufficient conditions for the existence of trajectories of nonstationary periodic solutions of autonomous Hamiltonian systems in a neighbourhood of equilibria. It is worth pointing out that assumptions…

Classical Analysis and ODEs · Mathematics 2024-06-21 A. Gołębiewska , S. Rybicki

In this paper, we study relations among known universal equations for Gromov-Witten invariants at genus 1 and 2.

Differential Geometry · Mathematics 2007-05-23 Xiaobo Liu

Let $F$ be a totally real number field and let $f$ be a classical cuspidal $p$-regular Hilbert modular eigenform over $F$ of parallel weight $1$. Let $x$ be the point on the $p$-adic Hilbert eigenvariety $\mathcal E$ corresponding to an…

Number Theory · Mathematics 2020-09-08 Adel Betina , Shaunak V. Deo , Francesc Fité

Fix a finite group $G$. We seek to classify varieties with $G$-action equivariantly birational to a representation of $G$ on affine or projective space. Our focus is odd-dimensional smooth complete intersections of two quadrics, relating…

Algebraic Geometry · Mathematics 2022-02-02 Brendan Hassett , Yuri Tschinkel

In this paper, we study the all genus Gromov-Witten theory for any GKM orbifold $X$. We generalize the Givental formula which is studied in the smooth case in \cite{Giv2} \cite{Giv3} \cite{Giv4} to the orbifold case. Specifically, we…

Algebraic Geometry · Mathematics 2016-05-10 Zhengyu Zong

Coboundary expansion (with $\mathbb{F}_2$ coefficients), and variations on it, have been the focus of intensive research in the last two decades. It was used to study random complexes, property testing, and above all Gromov's topological…

Group Theory · Mathematics 2024-04-02 Michael Chapman , Alexander Lubotzky

We show that (equivariant) K-theoretic 3-point Gromov-Witten invariants of genus zero on a Grassmann variety are equal to triple intersections computed in the ordinary (equivariant) K-theory of a two-step flag manifold, thus generalizing an…

Algebraic Geometry · Mathematics 2019-12-19 Anders S. Buch , Leonardo C. Mihalcea

We introduce a class of $G$-invariant connections on a homogeneous principal bundle $Q$ over a hermitian symmetric space $M=G/K$. The parameter space carries the structure of normal variety and has a canonical anti-holomorphic involution.…

Differential Geometry · Mathematics 2020-12-01 Indranil Biswas , Harald Upmeier

We study D-modules and related invariants on the space of 2 x 2 x n hypermatrices for n >= 3, which has finitely many orbits under the action of G = GL_2 x GL_2 x GL_n. We describe the category of coherent G-equivariant D-modules as the…

Algebraic Geometry · Mathematics 2023-09-15 András C. Lőrincz , Michael Perlman

The goal of this paper is to give a general theory of logarithmic Gromov-Witten invariants. This gives a vast generalization of the theory of relative Gromov-Witten invariants introduced by Li-Ruan, Ionel-Parker, and Jun Li, and completes a…

Algebraic Geometry · Mathematics 2012-10-16 Mark Gross , Bernd Siebert