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On the Local Cohomology and Formal Local Cohomology Modules

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Let a and b be ideals of a commutative Noetherian ring R and M be a finitely generated R-module of dimension d > 0. We prove some results concerning the top local cohomology and top formal local cohomology modules. Among other things, we determine SuppR(b H d a(M)) and SuppR(bFd a(M)). Also, we obtain some relations be tween AnnR(b H d a(M)), AttR(b H d a(M)) and SuppR(b H d a(M)) and we get similar results for bFd a(M).

Abstract

Let a and b be ideals of a commutative Noetherian ring R and M be a finitely generated R-module of dimension d > 0. We prove some results concerning the top local cohomology and top formal local cohomology modules. Among other things, we determine SuppR(b H d a(M)) and SuppR(bFd a(M)). Also, we obtain some relations be tween AnnR(b H d a(M)), AttR(b H d a(M)) and SuppR(b H d a(M)) and we get similar results for bFd a(M).

참고문헌 (9)

  1. M. Asgharzadeh, "Finiteness properties of formal local coho-mology modules and Cohen-Macaulayness", Comm. Algebra, 39, pp.1082~1103 (2011)
  2. M. H. Bijan-Zadeh, "Artinianness and attached primes of formal local cohomology modules", Algebra Colloq, 21(2), pp.307~316 (2014)
  3. M. P. Brodmann, "Local cohomology; an algebraic introduction with geometric applications" (1998), Cambridge University Press
  4. K. Divaani-Aazar, "Vanishing of the top local cohomology modules over Noetherian rings", Proc. Indian Acad. Sci. Math. Sci, 119(1), pp.23~35 (2009)
  5. K. Divaani-Aazar, "Cohomological dimension of certain algebraic varieties", Proc. Amer. Math. Soc, 130(12), pp.3537~3544 (2002)
  6. A. R. Nazari, "Top local cohomology and top formal local cohomology modules with specified attached primes", J. Algebr. Syst, 8(2), pp.155~164 (2021)
  7. S. Rezaei, "Some results on top local cohomology and top formal local cohomology mod-ules", Comm. Algebra, 45(5), pp.1935~1940 (2017)
  8. Shahram Rezaei, "ON THE TOP LOCAL COHOMOLOGY AND FORMAL LOCAL COHOMOLOGY MODULES", 대한수학회보, 60(1), pp.149~160 (2023), 대한수학회[DOI]
  9. P. Schenzel, "On formal local cohomology and connectedness", J. Algebra, 315(2), pp.894~923 (2007)

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