3 papers
hep-th2008★ 21 cited
Chiral Algebras of (0,2) Sigma Models: Beyond Perturbation Theory - II
Meng-Chwan Tan, Junya Yagi
We extend our analysis in [arXiv:0801.4782] and show that the chiral algebras of (0,2) sigma models are totally trivialized by worldsheet instantons for all complete flag manifolds…
hep-th2008★ 21 cited
Chiral Algebras of (0,2) Sigma Models: Beyond Perturbation Theory
Meng-Chwan Tan, Junya Yagi
We explore the nonperturbative aspects of the chiral algebras of N = (0,2) sigma models, which perturbatively are intimately related to the theory of chiral differential operators…
hep-th2004
A Large N Type IIB Duality via a Spin(7) Geometric Transition as an F-theory Flop
M. C. Tan
The geometric features and toric descriptions of two different 8-dimensional manifolds constructed via distinct resolutions of the cone over an base, reveals…