The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations

The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations PDF Author: Shirō Gotō
Publisher: American Mathematical Soc.
ISBN: 0821825844
Category : Mathematics
Languages : en
Pages : 134

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Book Description
This monograph consists of two parts. Part I investigates the Cohen-Macaulay and Gorenstein properties of symbolic Rees algebras for one-dimensional prime ideals in Cohen-Macaulay local rings. Practical criteria for these algebras to be Cohen-Macaulay and Gorenstein rings are described in terms of certain elements in the prime ideals. This framework is generalized in Part II to Rees algebras $R(F)$ and graded rings $G(F)$ associated to general filtrations of ideals in arbitrary Noetherian local rings. Goto and Nishida give certain cohomological characterizations for algebras $R(F)$ to be Cohen-Macaulay or Gorenstein rings in connection with the corresponding ring-theoretic properties of $G(F)$. In this way, readers follow a history of the development of the ring theory of Rees algebras. The book raises many important open questions.

The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations

The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations PDF Author: Shirō Gotō
Publisher: American Mathematical Soc.
ISBN: 0821825844
Category : Mathematics
Languages : en
Pages : 134

Get Book

Book Description
This monograph consists of two parts. Part I investigates the Cohen-Macaulay and Gorenstein properties of symbolic Rees algebras for one-dimensional prime ideals in Cohen-Macaulay local rings. Practical criteria for these algebras to be Cohen-Macaulay and Gorenstein rings are described in terms of certain elements in the prime ideals. This framework is generalized in Part II to Rees algebras $R(F)$ and graded rings $G(F)$ associated to general filtrations of ideals in arbitrary Noetherian local rings. Goto and Nishida give certain cohomological characterizations for algebras $R(F)$ to be Cohen-Macaulay or Gorenstein rings in connection with the corresponding ring-theoretic properties of $G(F)$. In this way, readers follow a history of the development of the ring theory of Rees algebras. The book raises many important open questions.

The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations

The Cohen-Macaulay and Gorenstein Rees Algebras Associated to Filtrations PDF Author: Shirō Gotō
Publisher: American Mathematical Society(RI)
ISBN: 9781470401054
Category : Cohen-Macaulay rings
Languages : en
Pages : 149

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Book Description
This monograph consists of two parts. Part I investigates the Cohen-Macaulay and Gorenstein properties of symbolic Rees algebras for one-dimensional prime ideals in Cohen-Macaulay local rings. Practical criteria for these algebras to be Cohen-Macaulay and Gorenstein rings are described in terms of certain elements in the prime ideals. This framework is generalized in Part II to Rees algebras R(F) and graded rings G(F) associated to general filtrations of ideals in arbitrary Noetherian local rings. Goto and Nishida give certain cohomological characterizations for algebras R(F) to be Cohen-Macaulay or Gorenstein rings in connection with the corresponding ring-theoretic properties of G(F). In this way, readers follow a history of the development of the ring theory of Rees algebras. The book raises many open questions.

Geometric And Combinatorial Aspects Of Commutative Algebra

Geometric And Combinatorial Aspects Of Commutative Algebra PDF Author: Jurgen Herzog
Publisher: CRC Press
ISBN: 9780203908013
Category : Mathematics
Languages : en
Pages : 424

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Book Description
This work is based on the lectures presented at the International Conference of Commutative Algebra and Algebraic Geometry held in Messina, Italy. It discusses developments and advances in commutative algebra, algebraic geometry, and combinatorics - highlighting the theory of projective schemes, the geometry of curves, determinantal and stable idea

Filtrations on the Homology of Algebraic Varieties

Filtrations on the Homology of Algebraic Varieties PDF Author: Eric M. Friedlander
Publisher: American Mathematical Soc.
ISBN: 0821825917
Category : Mathematics
Languages : en
Pages : 110

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Book Description
This work provides a detailed exposition of a classical topic from a very recent viewpoint. Friedlander and Mazur describe some foundational aspects of ``Lawson homology'' for complex projective algebraic varieties, a homology theory defined in terms of homotopy groups of spaces of algebraic cycles. Attention is paid to methods of group completing abelian topological monoids. The authors study properties of Chow varieties, especially in connection with algebraic correspondences relating algebraic varieties. Operations on Lawson homology are introduced and analyzed. These operations lead to a filtration on the singular homology of algebraic varieties, which is identified in terms of correspondences and related to classical filtrations of Hodge and Grothendieck.

Integral Closure

Integral Closure PDF Author: Wolmer Vasconcelos
Publisher: Springer Science & Business Media
ISBN: 3540265031
Category : Mathematics
Languages : en
Pages : 520

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Book Description
This book gives an account of theoretical and algorithmic developments on the integral closure of algebraic structures. It gives a comprehensive treatment of Rees algebras and multiplicity theory while pointing to applications in many other problem areas. Its main goal is to provide complexity estimates by tracking numerically invariants of the structures that may occur.

Numerical Semigroups

Numerical Semigroups PDF Author: Valentina Barucci
Publisher: Springer Nature
ISBN: 3030408221
Category : Mathematics
Languages : en
Pages : 373

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Book Description
This book presents the state of the art on numerical semigroups and related subjects, offering different perspectives on research in the field and including results and examples that are very difficult to find in a structured exposition elsewhere. The contents comprise the proceedings of the 2018 INdAM “International Meeting on Numerical Semigroups”, held in Cortona, Italy. Talks at the meeting centered not only on traditional types of numerical semigroups, such as Arf or symmetric, and their usual properties, but also on related types of semigroups, such as affine, Puiseux, Weierstrass, and primary, and their applications in other branches of algebra, including semigroup rings, coding theory, star operations, and Hilbert functions. The papers in the book reflect the variety of the talks and derive from research areas including Semigroup Theory, Factorization Theory, Algebraic Geometry, Combinatorics, Commutative Algebra, Coding Theory, and Number Theory. The book is intended for researchers and students who want to learn about recent developments in the theory of numerical semigroups and its connections with other research fields.

Triangular Algebras and Ideals of Nest Algebras

Triangular Algebras and Ideals of Nest Algebras PDF Author: John Lindsay Orr
Publisher: American Mathematical Soc.
ISBN: 0821804057
Category : Mathematics
Languages : en
Pages : 49

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Book Description
Triangular algebras and nest algebras are two important classes of non-selfadjoint operator algebras. In this book, the author uses the new depth of understanding which the similarity theory for nests has opened up to study ideals of nest algebras. In particular, a unique largest diagonal-disjoint ideal is identified for each nest algebra. Using a construction proposed by Kadison and Singer, this ideal can be used to construct new maximal triangular algebras. These new algebras are the first concrete descriptions of maximal triangular algebras that are not nest algebras.

Hilbert Modules over Operator Algebras

Hilbert Modules over Operator Algebras PDF Author: Paul S. Muhly
Publisher: American Mathematical Soc.
ISBN: 0821803468
Category : Mathematics
Languages : en
Pages : 53

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Book Description
This book gives a general systematic analysis of the notions of ``projectivity'' and ``injectivity'' in the context of Hilbert modules over operator algebras. A Hilbert module over an operator algebra $A$ is simply the Hilbert space of a (contractive) representation of $A$ viewed as a module over $A$ in the usual way. In this work, Muhly and Solel introduce various notions of projective Hilbert modules and use them to investigate dilation and commutant lifting problems over certain infinite dimensional analogues of incidence algebras. The authors prove that commutant lifting holds for such an algebra if and only if the pattern indexing the algebra is a ``tree'' in the sense of computer directories.

Encyclopaedia of Mathematics, Supplement III

Encyclopaedia of Mathematics, Supplement III PDF Author: Michiel Hazewinkel
Publisher: Springer Science & Business Media
ISBN: 0306483734
Category : Mathematics
Languages : en
Pages : 564

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Book Description
This is the third supplementary volume to Kluwer's highly acclaimed twelve-volume Encyclopaedia of Mathematics. This additional volume contains nearly 500 new entries written by experts and covers developments and topics not included in the previous volumes. These entries are arranged alphabetically throughout and a detailed index is included. This supplementary volume enhances the existing twelve volumes, and together, these thirteen volumes represent the most authoritative, comprehensive and up-to-date Encyclopaedia of Mathematics available.

Compact Connected Lie Transformation Groups on Spheres with Low Cohomogeneity, I

Compact Connected Lie Transformation Groups on Spheres with Low Cohomogeneity, I PDF Author: Eldar Straume
Publisher: American Mathematical Soc.
ISBN: 082180409X
Category : Mathematics
Languages : en
Pages : 93

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Book Description
This text is aimed at researchers studying Lie transformation groups.