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math.AG2011★ 19 cited
A Mathematical Theory of Quantum Sheaf Cohomology
Ron Donagi, Josh Guffin, Sheldon Katz +1
The purpose of this paper is to present a mathematical theory of the half-twisted gauged linear sigma model and its correlation functions that agrees with and extends resul…
math.AG2011
Quantum Sheaf Cohomology, a précis
Josh Guffin
We present a brief introduction to quantum sheaf cohomology, a generalization of quantum cohomology based on the physics of the (0,2) nonlinear sigma model.
math.AG2010
On the existence of affine Landau-Ginzburg phases in gauged linear sigma models
Patrick Clarke, Josh Guffin
We prove a simple criterion for the existence of an affine Landau-Ginzburg point in the Kähler moduli space of a gauged linear sigma model.