Geodesic
Geometric presentation for the cohomology ring of polygon spaces
Algebra i analiz, Tome 31 (2019) no. 1, pp. 80-91

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We describe the cohomology ring of the moduli space of a flexible polygon in geometrically meaningful terms. We propose two presentations, both are computation friendly: there are simple rules for the cup product.
Keywords: polygonal linkage, Chern class, intersection theory
Mots-clés : Euler class, moduli space. 
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I. Nekrasov; G. Panina. Geometric presentation for the cohomology ring of polygon spaces. Algebra i analiz, Tome 31 (2019) no. 1, pp. 80-91. http://geodesic.mathdoc.fr/item/AA_2019_31_1_a3/

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