Geodesic
Bikei homology
Homology, homotopy, and applications, Tome 19 (2017) no. 1, pp. 23-35.

Voir la notice de l'article provenant de la source International Press of Boston

We introduce a modified homology and cohomology theory for involutory biquandles (also known as bikei ). We use bikei $2$-cocycles to enhance the bikei counting invariant for unoriented knots and links as well as unoriented and non-orientable knotted surfaces in $\mathbb{R}^4$.
DOI : 10.4310/HHA.2017.v19.n1.a2
Classification : 57M25, 57M27
Keywords: bikei, involutory biquandle, cocycle invariant, bikei homology 
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     author = {Sam Nelson and Jake Rosenfield},
     title = {Bikei homology},
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     pages = {23--35},
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     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2017.v19.n1.a2/}
}
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Sam Nelson; Jake Rosenfield. Bikei homology. Homology, homotopy, and applications, Tome 19 (2017) no. 1, pp. 23-35. doi : 10.4310/HHA.2017.v19.n1.a2. http://geodesic.mathdoc.fr/articles/10.4310/HHA.2017.v19.n1.a2/

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