Some remarks on Gopakumar-Vafa invariants

Details Some remarks on Gopakumar-Vafa invariants Some remarks on Gopakumar-Vafa invariants

2004-12-12

arxiv.org/abs/hep-th/0412119v4

Pure Appl.Math.Quart. 1 (2005) 817-826

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, some additions and clarifications, minor changes

Scientific paper

We show that Gopakumar-Vafa invariants can be expressed in terms of the
cohomology ring of moduli space of D-branes without reference to the sl_2
\times sl_2 action. We also give a simple construction of this action.

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