Geodesic
Hochschild Homology and Cohomology of Klein Surfaces
Symmetry, integrability and geometry: methods and applications, Tome 4 (2008) Cet article a éte moissonné depuis la source Math-Net.Ru

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Within the framework of deformation quantization, a first step towards the study of star-products is the calculation of Hochschild cohomology. The aim of this article is precisely to determine the Hochschild homology and cohomology in two cases of algebraic varieties. On the one hand, we consider singular curves of the plane; here we recover, in a different way, a result proved by Fronsdal and make it more precise. On the other hand, we are interested in Klein surfaces. The use of a complex suggested by Kontsevich and the help of Groebner bases allow us to solve the problem.
Keywords: Hochschild cohomology; Hochschild homology; Klein surfaces; Groebner bases; quantization; star-products. 
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     author = {Fr\'ed\'eric Butin},
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Frédéric Butin. Hochschild Homology and Cohomology of Klein Surfaces. Symmetry, integrability and geometry: methods and applications, Tome 4 (2008). http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a63/

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