activity
20072026
most citedMorse theory for Lagrange multipliers and adiabatic limits

7 citations · 37 across the 26 of their papers we have counts for

collaborators

26 papers

math.SG2026

A proof of the Arnold-Givental conjecture

Shaoyun Bai, Egor Shelukhin, Yi Wang +1

We prove the Arnold-Givental conjecture in full generality: given a closed symplectic manifold , an anti-symplectic involution with fixed point set $L={\rm F…

math.SG2026

Quantum Steenrod powers and Hamiltonian maps

Shaoyun Bai, Egor Shelukhin, Nicholas Wilkins +1

We prove a series of new results in Hamiltonian dynamics on a general closed symplectic manifold , including: 1. If admits a Hamiltonian diffeomorphism which is either…

math.SG2026

Integral Hamiltonian Floer theory: Foundations

Shaoyun Bai, Guangbo Xu

Continuing our previous work on the integral Arnold conjecture, we establish the foundation of Hamiltonian Floer theory over integer coefficients on any compact symplectic manifold…

math-ph2024

Gauged linear sigma model in geometric phase. II. the virtual cycle

Gang Tian, Guangbo Xu

We provide the detailed construction of the virtual cycles needed for defining the cohomological field theory associated to a gauged linear sigma model in geometric phase.

math.SG2022★ 1 cited

Arnold conjecture over integers

Shaoyun Bai, Guangbo Xu

For any closed symplectic manifold, we show that the number of 1-periodic orbits of a nondegenerate Hamiltonian thereon is bounded from below by a version of total Betti number ove…

math.SG2022

A new transversality condition on orbifolds and integer-valued Gromov-Witten type invariants

Shaoyun Bai, Guangbo Xu

Following a proposal of Fukaya-Ono and the exploration by B. Parker, we introduce a new transversality condition, the FOP transversality condition, for sections of orbifold vector…

math.SG2021

Counting pointlike instantons virtually without gluing

Gang Tian, Guangbo Xu

We use the first author's idea on "constructing virtual fundamental cycles without gluing ' to define the quantum correction term between the gauged linear sigma model and the nonl…

math.SG2020

Fukaya categories of blowups

Sushmita Venugopalan, Chris T. Woodward, Guangbo Xu

We compute the Fukaya category of the symplectic blowup of a compact rational symplectic manifold at a point in the following sense: Suppose a collection of Lagrangian branes satis…

math.SG2019★ 1 cited

A Compactness Theorem for Anti-Self-Dual Equation with Translation Symmetry

Guangbo Xu

Motivated by the Atiyah-Floer conjecture, we consider Santi-self-dual instantons on the product of the real line and a three-manifold with cylindrical end. We prove a Gromo…

math.SG2019

A wall-crossing formula and the invariance of GLSM correlation functions

Gang Tian, Guangbo Xu

In this paper we prove a wall-crossing formula, a crucial ingredient needed to prove that the correlation function of gauged linear sigma model is independent of the choice of pert…

math.SG2019

Partly-local domain-dependent almost complex structures

Guangbo Xu, Chris T. Woodward

We fill a gap pointed out by N. Sheridan in the proof of independence of genus zero Gromov-Witten invariants from the choice of divisor in the Cieliebak-Mohnke perturbation scheme.

math-ph2018★ 7 cited

Gauged Linear Sigma Model in Geometric Phases. I

Gang Tian, Guangbo Xu

We construct a cohomological field theory for a gauged linear sigma model space in geometric phase, using the method of gauge theory and differential geometry. The cohomological fi…

math.SG2018★ 3 cited

An open quantum Kirwan map

Chris Woodward, Guangbo Xu

We construct a morphism from the equivariant Fukaya algebra of a Lagrangian brane in the zero level set of a moment map of a Hamiltonian action to the Fukaya algebra of the quotien…

math.SG2017★ 1 cited

The symplectic approach of gauged linear -model

Gang Tian, Guangbo Xu

Witten's Gauged Linear -Model (GLSM) unifies the Gromov-Witten theory and the Landau-Ginzburg theory, and provides a global perspective on mirror symmetry. In this article, we s…

math.SG2016

Gluing affine vortices

Guangbo Xu

We construct a gluing map for stable affine vortices over the upper half plane with the Lagrangian boundary condition at a rigid, regular, codimension one configuration. This const…

math.SG2016★ 3 cited

Virtual cycles of gauged Witten equation

Gang Tian, Guangbo Xu

We construct virtual cycles on moduli spaces of perturbed gauged Witten equation over a fixed smooth r -spin curve, under the framework of [TX15]. Together with the wall-crossing f…

math.SG2015★ 1 cited

Local model for the moduli space of affine vortices

Sushmita Venugopalan, Guangbo Xu

We show that the moduli space of regular affine vortices, which are solutions of the symplectic vortex equation over the complex plane, has the structure of a smooth manifold. The…

math.SG2015

Gauged Floer homology and spectral invariants

Weiwei Wu, Guangbo Xu

We define a version of spectral invariant in the vortex Floer theory for a -Hamiltonian manifold . This defines potentially new (partial) symplectic quasi-morphism and quasi-…

math.SG2015

Compactness in the adiabatic limit of disk vortices

Dongning Wang, Guangbo Xu

This paper is the first input towards an open analogue of the quantum Kirwan map. We consider the adiabatic limit of the symplectic vortex equation over the unit disk for a Hamilto…

math.SG2014

Correlation functions of gauged linear -model

Gang Tian, Guangbo Xu

This is the second paper in a series following arXiv:1405.6352, on the construction of a mathematical theory of the gauged linear -model (GLSM). In this paper, assuming the exis…

math.SG2014★ 6 cited

Analysis of gauged Witten equation

Gang Tian, Guangbo Xu

The gauged Witten equation was essentially introduced by Witten in his formulation of gauged linear -model (GLSM). GLSM is a physics theory which explains the so-called Landau-G…

math.SG2013★ 1 cited

Gauged Hamiltonian Floer homology I: definition of the Floer homology groups

Guangbo Xu

We construct the vortex Floer homology group for an aspherical Hamiltonian -manifold with moment map and a class of -invariant Hamiltonian loop $H_…

math.GT2012★ 7 cited

Morse theory for Lagrange multipliers and adiabatic limits

Stephen Schecter, Guangbo Xu

Given two Morse functions on a compact manifold , we study the Morse homology for the Lagrange multiplier function on which sends to $f(x)…

math.SG2012★ 2 cited

U(1)-vortices and quantum Kirwan map

Guangbo Xu

We study the symplectic vortex equation over the complex plane, for the target space () with diagonal U(1)-action. We classify all solutions with finite en…