Geometric presentation for the cohomology ring of polygon spaces

Nekrasov, I.; Panina, G.

doi:10.1090/spmj/1584

Geometric presentation for the cohomology ring of polygon spaces
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by I. Nekrasov and G. Panina

St. Petersburg Math. J. 31 (2020), 59-67

DOI: https://doi.org/10.1090/spmj/1584

Published electronically: December 3, 2019

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Abstract:

In geometrically meaningful terms, the cohomology ring is described for the moduli space of a flexible polygon. Two presentations are proposed, both are computation friendly: there are simple rules for the cup product.

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