String Theory Journal Club

I will review what "The topological vertex" is, and then we can (try to) discuss more recent developments. Relevant publications are: 1. the original paper:https://arxiv.org/abs/hep-th/0305132; 2. (one version of the) refined vertex:https://arxiv.org/abs/hep-th/0701156; 3. recent work by Gaiotto and Rapcak on W-algebras and the topological vertex: https://arxiv.org/abs/1703.00982; 4. the last paper by Omar and Masahide: https://arxiv.org/abs/1801.04943.