Department of Mathematics - Seminar on Pure Mathematics - BCOV's Feynman rule for quintic threefold

We will introduce BCOV's B-model Feynman rule and its A-model approach. BCOV's Feynmann rule involves the notions of geometric quantization, normalize basis, propagators, etc. We  explain where they comes from in the A-model theory, and thus naturally  recover the B-models Feymann graph.