Completion, čech and local homology and cohomology interactions between them /

The aim of the present monograph is a thorough study of the adic-completion, its left derived functors and their relations to the local cohomology functors, as well as several completeness criteria, related questions and various dualities formulas. A basic construction is the Čech complex with respe...

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Main Author: Schenzel, Peter,
Other Authors: Simon, Anne-Marie (Mathematics professor),, SpringerLink (Online service)
Format: eBook
Language: English
Published: Cham, Switzerland : Springer, [2018]
Physical Description: 1 online resource.
Series: Springer monographs in mathematics.
Subjects:
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100 1 |a Schenzel, Peter,  |e author. 
245 1 0 |a Completion, čech and local homology and cohomology :  |b interactions between them /  |c Peter Schenzel, Anne-Marie Simon. 
264 1 |a Cham, Switzerland :  |b Springer,  |c [2018] 
300 |a 1 online resource. 
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490 1 |a Springer monographs in mathematics,  |x 2196-9922. 
504 |a Includes bibliographical references and indexes. 
588 |a Online resource; title from PDF title page (EBSCO, viewed September 19, 2018). 
505 0 |a Intro; Introduction; Contents; Part I Modules; 1 Preliminaries and Auxiliary Results; 1.1 Complexes; 1.2 Inverse Limits; 1.3 Direct Limits; 1.4 Ext-Tor Duality and General Matlis Duality; 1.5 Cones and Fibers; 2 Adic Topology and Completion; 2.1 Topological Preliminaries; 2.2 The Case of Finitely Generated Ideals; 2.3 Noetherian Rings and Matlis Duality; 2.4 Completions of Flat Modules over a Noetherian Ring; 2.5 The Left-Derived Functors of Completion; 2.6 Relative Flatness and Completion in the General Case; 2.7 Relatively Injective and Torsion Modules; 2.8 Some Examples. 
505 8 |a 3 Ext-Tor Vanishing and Completeness Criteria3.1 Completeness and Pseudo-completeness Criteria; 3.2 Modules of Infinite Co-depth; 3.3 When is a Finitely Generated Module Complete?; 3.4 Ext-Depth and Tor-Codepth with Local (Co- )Homology; Part II Complexes; 4 Homological Preliminaries; 4.1 Double Complexes and Truncations; 4.2 The Microscope; 4.3 The Telescope; 4.4 Special Resolutions and Their Uses; 4.5 Minimal Injective Resolutions for Unbounded Complexes; 4.6 Ext and Tor with Inverse and Direct Limits; 5 Koszul Complexes, Depth and Codepth; 5.1 Ext-Depth and Tor-Codepth. 
505 8 |a 5.2 Basics About Koszul Complexes5.3 The Ext-Depth Tor-Codepth Sensitivity of the Koszul Complex; 5.4 Koszul Homology of Modules; 6 Čech Complexes, Čech Homology and Cohomology; 6.1 The Čech Complex; 6.2 A Free Resolution of the Čech Complex; 6.3 Čech Homology and Cohomology; 6.4 Some Classes Related to the Čech Complex; 6.5 Composites; 6.6 Depth, Codepth and Čech Complexes; 7 Local Cohomology and Local Homology; 7.1 The General Case; 7.2 First Vanishing Results with Applications to the Class mathcalTmathfraka; 7.3 Weakly Pro-regular Sequences; 7.4 Local and Čech Cohomology with Telescope. 
505 8 |a 7.5 Local and Čech Homology with Microscope7.6 Depth and Codepth with Local (Co- )Homology; 8 The Formal Power Series Koszul Complex; 8.1 Čech Homology and Koszul Complexes; 8.2 Applications to Weakly Pro-regular Sequences; 8.3 Applications to Koszul Homology; 8.4 The Case of a Single Element; 9 Complements and Applications; 9.1 Composites; 9.2 Adjointness and Duality; 9.3 Some Endomorphisms; 9.4 Mayer-Vietoris Sequences for Local and Čech (Co- )Homology; 9.5 On the use of the classes mathcalCmathfraka and mathcalBmathfraka; 9.6 Homologically Complete and Cohomologically Torsion Complexes. 
505 8 |a 9.7 Homological Completeness and Cosupport9.8 Change of Rings; Part III Duality; 10 Čech and Local Duality; 10.1 Bounded Injective Complexes with Finitely Generated Cohomology; 10.2 Čech Cohomology and Duality; 10.3 Canonical Modules; 10.4 Local Duality over Cohen-Macaulay Local Rings; 10.5 On Gorenstein Local Rings and Duality; 10.6 Local Cohomology over Finite Local Gorenstein Algebras; 11 Dualizing Complexes; 11.1 Evaluation Morphisms of Complexes; 11.2 Definition of Dualizing Complexes for Noetherian Rings; 11.3 First Change of Rings; 11.4 Characterization and Uniqueness. 
520 |a The aim of the present monograph is a thorough study of the adic-completion, its left derived functors and their relations to the local cohomology functors, as well as several completeness criteria, related questions and various dualities formulas. A basic construction is the Čech complex with respect to a system of elements and its free resolution. The study of its homology and cohomology will play a crucial role in order to understand left derived functors of completion and right derived functors of torsion. This is useful for the extension and refinement of results known for modules to unbounded complexes in the more general setting of not necessarily Noetherian rings. The book is divided into three parts. The first one is devoted to modules, where the adic-completion functor is presented in full details with generalizations of some previous completeness criteria for modules. Part II is devoted to the study of complexes. Part III is mainly concerned with duality, starting with those between completion and torsion and leading to new aspects of various dualizing complexes. The Appendix covers various additional and complementary aspects of the previous investigations and also provides examples showing the necessity of the assumptions. The book is directed to readers interested in recent progress in Homological and Commutative Algebra. Necessary prerequisites include some knowledge of Commutative Algebra and a familiarity with basic Homological Algebra. The book could be used as base for seminars with graduate students interested in Homological Algebra with a view towards recent research.--  |c Provided by publisher. 
650 0 |a Commutative algebra. 
650 0 |a Homology theory. 
650 6 |a Algèbre commutative. 
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650 7 |a Álgebra conmutativa.  |2 embne. 
650 0 7 |a Homología, Teoría de.  |2 embucm. 
650 7 |a Commutative algebra.  |2 fast. 
650 7 |a Homology theory.  |2 fast. 
700 1 |a Simon, Anne-Marie  |c (Mathematics professor),  |e author. 
710 2 |a SpringerLink (Online service) 
776 0 8 |i Print version:  |a Schenzel, Peter.  |t Completion, čech and local homology and cohomology.  |d Cham, Switzerland : Springer, [2018]  |z 3319965166  |z 9783319965161  |w (OCoLC)1041482090. 
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