منابع مشابه
Abstract Homotopy Theory and Generalized Sheaf Cohomology
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A conjecture of F.Morel states that the motivic group π0,0(k) of a perfect field k coincides with the Grothendieck-Witt group GW (k) of quadratic forms over k provided that char(k) 6= 2. Morel’s proof of the conjecture requires the the following result: the Nisnevich sheaf WNis associated with the presheaf X 7→ W (X) is homotopy invariant and all its Nisnevich cohomology are homotopy invariant ...
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The goal of this paper is to study the homotopy theory of homotopy algebras over a Koszul operad with their infinity morphisms. The method consists in endowing the category of coalgebras over the Koszul dual cooperad with a model category structure. CONTENTS Introduction 1 1. Recollections 2 2. Model category structure for coalgebras 5 3. Conclusion 14 Appendix A. A technical lemma 15 Reference...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1972
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1972-0451233-2