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On the non-vanishing of cotangent cohomology

โœ Scribed by Luchezar Avramov; Stephen Halperin


Book ID
110557415
Publisher
European Mathematical Society
Year
1987
Tongue
English
Weight
693 KB
Volume
62
Category
Article
ISSN
0010-2571

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The Largest Non-vanishing Degree of Grad
โœ Ngรด Viรชt Trung ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 136 KB

This paper gives characterizations for the largest non-vanishing degree of the local cohomology modules of a graded ring S in terms of a reduction of S and of q the associated graded ring of an ideal I in terms of any reduction of I. As a consequence, this invariant can be computed explicitly for th