scholarly journals Some bounds for the annihilators of local cohomology and Ext modules

2021 ◽  
pp. 1-20
Author(s):  
Ali Fathi
Keyword(s):  
Local Cohomology ◽  
Ext Modules

scholarly journals Generalized local cohomology and regularity of Ext modules

2008 ◽  
Vol 319 (11) ◽  
pp. 4780-4797 ◽  
Author(s):  
Marc Chardin ◽  
Kamran Divaani-Aazar
Keyword(s):  
Local Cohomology ◽  
Ext Modules

scholarly journals Artinianness of local cohomology modules

2014 ◽  
Vol 52 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Moharram Aghapournahr ◽  
Leif Melkersson
Keyword(s):  
Local Cohomology ◽  
Local Cohomology Modules ◽  
Cohomology Modules

scholarly journals (Non)Vanishing results on local cohomology of valuation rings

2017 ◽  
Vol 479 ◽  
pp. 413-436
Author(s):  
Rankeya Datta
Keyword(s):  
Local Cohomology ◽  
Valuation Rings

On the associated primes of local cohomology modules

1999 ◽  
Vol 27 (12) ◽  
pp. 6191-6198 ◽  
Author(s):  
K. Khashyarmanesh ◽  
Sh Salarian
Keyword(s):  
Local Cohomology ◽  
Associated Primes ◽  
Local Cohomology Modules ◽  
Cohomology Modules

scholarly journals Local cohomology of certain Rees- and form-rings, I

1983 ◽  
Vol 81 (1) ◽  
pp. 29-57 ◽  
Author(s):  
Markus Brodmann
Keyword(s):  
Local Cohomology

Frobenius closure and prime characteristic singularities

2020 ◽  
Author(s):  
◽  
Kyle Logan Maddox
Keyword(s):  
Local Ring ◽  
Local Cohomology ◽  
Sufficient Condition ◽  
Zariski Topology ◽  
Prime Characteristic ◽  
Joint Work ◽  
University Of Missouri ◽  
Mild Conditions ◽  
Flat Maps ◽  
The University

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This dissertation outlines several results about prime characteristic singularities for which the nilpotent part under the induced Frobenius action on local cohomology is either finite colength or the entire module, collectively referred to here as nilpotent singularities. First, we establish a sufficient condition for the finiteness of the Frobenius test exponent for a local ring and apply it to conclude that nilpotent singularities have finite Frobenius test exponent. In joint work with Jennifer Kenkel, Thomas Polstra, and Austyn Simpson, we show that under mild conditions nilpotent singularities descend and ascend along faithfully flat maps. Consequently, we then prove that the loci of primes which are weakly F-nilpotent and F-nilpotent are open in the Zariski topology for rings which are either F-finite or essentially of fiiite type over an excellent local ring.

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