A note on Deligne's formula

被引:0
|
作者
Schenzel, Peter [1 ]
机构
[1] Martin Luther Univ Halle Wittenberg, Inst Informat, D-06099 Halle, Germany
关键词
Deligne's formula; & Ccaron; ech cohomology; Local cohomology; Weakly pro-regular sequences; COHOMOLOGY; SEQUENCES;
D O I
10.1016/j.jpaa.2024.107754
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let R denote a Noetherian ring and an ideal J subset of R with U = Spec R \ V (J). For an R-module M there is an isomorphism Gamma(U, M) similar to= lim ---> HomR(Jn, M) known as Deligne's formula (see [8, p. 217] and Deligne's Appendix in [7]). We extend the isomorphism for any R-module M in the non-No etherian case of R and J = (x1, ..., xk) a certain finitely generated ideal. Moreover, we recall a corresponding sheaf construction. (c) 2024 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/).
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页数:8
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