Orbifold quantum cohomology of the classifying space of a finite group
Jarvis, Tyler J. · Kimura, Takashi
Original · EN
We work through, in detail, the orbifold quantum cohomology, with gravitational descendants, of the stack BG, the point modulo trivial action of a finite group G. We provide a simple description of algebraic structures on the state space of this theory. As a consequence, we find that multiple copies of commuting Virasoro algebras appear in this theory which completely determine the correlators of the theory.
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