Geodesic
Cocycle invariants for links in the projective space
Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika, no. 12 (2010), pp. 88-97

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We introduce a definition of proper colorings of the diagram by the elements of the finite groupoid. We introduce an invariant for links in the projective space, based on the cocycle homology theory.
Keywords: link, projective space
Mots-clés : groupoid, quandle, cocycle invariant. 
@article{VCHGU_2010_12_a10,
     author = {D. V. Gorkovets},
     title = {Cocycle invariants for links in the projective space},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {88--97},
     publisher = {mathdoc},
     number = {12},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_2010_12_a10/}
}
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D. V. Gorkovets. Cocycle invariants for links in the projective space. Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika, no. 12 (2010), pp. 88-97. http://geodesic.mathdoc.fr/item/VCHGU_2010_12_a10/