Some remarks on Gopakumar-Vafa invariants
Open Access Publications from the University of California

## Some remarks on Gopakumar-Vafa invariants

• Author(s): Schwarz, A.
• Shapiro, I.
• et al.

## Published Web Location

https://arxiv.org/pdf/hep-th/0412119.pdf
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Abstract

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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