Geodesic
The cohomology ring of the colored braid group
Matematičeskie zametki, Tome 5 (1969) no. 2, pp. 227-231.

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The cohomology ring is obtained for the space of ordered sets of $n$ different points of a plane. 
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     author = {V. I. Arnol'd},
     title = {The cohomology ring of the colored braid group},
     journal = {Matemati\v{c}eskie zametki},
     pages = {227--231},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_2_a9/}
}
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V. I. Arnol'd. The cohomology ring of the colored braid group. Matematičeskie zametki, Tome 5 (1969) no. 2, pp. 227-231. http://geodesic.mathdoc.fr/item/MZM_1969_5_2_a9/