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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/9842

Title: Cohomologie de Hochschild et espaces projectifs tronquds
Authors: Buchweitz, Ragnar-Olaf
El haouari, M.
Issue Date: 1995
Publisher: Springer Verlag
Citation: manuscripta math, 86, 49 - 61
Abstract: In this paper, we outline the construction of obstructions to k-formality where k is a field of arbitrary characteristic. We show that the obstructions to intrinsic k-formality of a graded algebra H* lie in the Hochschild cohomology HH'~'I(H*/k, H*). We calculate explicitly the Hochschild cohomology of the algebra H*((~P~ k) and deduce that the stunted complex projective space (I;P~176 n is intrinsically k-formal for any field k.
URI: http://hdl.handle.net/1807/9842
Appears in Collections:Mathematics

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