Geodesic
Algebraic Deformations and Bicohomology
Canadian mathematical bulletin, Tome 32 (1989) no. 2, pp. 182-189

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Recently we have introduced an enriched cohomology theory for categories that are tripleable (algebraic) over a category of modules. The cohomology admits a circle product, related to the obstruction problem for algebraic deformations, making the total complex a graded ring. We here offer similar constructions in two other situations - coalgebraic and bialgebraic categories. Examples include categories of bialgebras, sheaves of modules, and sheaves of algebras over a sheaf of rings.
DOI : 10.4153/CMB-1989-027-9
Mots-clés : 18C15, 18G99, 16A58 
Fox, Thomas F. Algebraic Deformations and Bicohomology. Canadian mathematical bulletin, Tome 32 (1989) no. 2, pp. 182-189. doi: 10.4153/CMB-1989-027-9
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     title = {Algebraic {Deformations} and {Bicohomology}},
     journal = {Canadian mathematical bulletin},
     pages = {182--189},
     year = {1989},
     volume = {32},
     number = {2},
     doi = {10.4153/CMB-1989-027-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1989-027-9/}
}
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