Analysis of gauged Witten equation Academic Article uri icon


  • Abstract The gauged Witten equation was essentially introduced by Witten in his formulation of the gauged linear -model (GLSM), which explains the so-called LandauGinzburg/CalabiYau correspondence. This is the first paper in a series towards a mathematical construction of GLSM, in which we set up a proper framework for studying the gauged Witten equation and its perturbations. We also prove several analytical properties of solutions and moduli spaces of the perturbed gauged Witten equation. We prove that solutions have nice asymptotic behavior on cylindrical ends of the domain. Under a good perturbation scheme, the energies of solutions are shown to be uniformly bounded by a constant depending only on the topological type. We prove that the linearization of the perturbed gauged Witten equation is Fredholm, and we calculate its Fredholm index. Finally, we define a notion of stable solutions and prove a compactness theorem for the moduli space of solutions over a fixed domain curve.

published proceedings

  • Journal fr die reine und angewandte Mathematik (Crelles Journal)

author list (cited authors)

  • Tian, G., & Xu, G.

citation count

  • 8

complete list of authors

  • Tian, Gang||Xu, Guangbo

publication date

  • July 2018