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OverviewFull Product DetailsAuthor: Timothy B. P. Clark , Susan M. Cooper , Sean Sather-Wagstaff , Anthony V. GeramitaPublisher: De Gruyter Imprint: De Gruyter Dimensions: Width: 17.00cm , Height: 2.50cm , Length: 24.00cm Weight: 0.765kg ISBN: 9783110250343ISBN 10: 3110250349 Pages: 372 Publication Date: 16 April 2012 Recommended Age: College Graduate Student Audience: Professional and scholarly , Professional & Vocational , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Language: English & German Table of ContentsPreface 1 Boij-Soederberg Theory: Introduction and Survey Gunnar Fløystad 1.1 Introduction 1.2 The Boij-Söderberg Conjectures 1.2.1 Resolutions and Betti Diagrams 1.2.2 The Positive Cone of Betti Diagrams 1.2.3 Herzog-Kühl Equations 1.2.4 Pure Resolutions 1.2.5 Linear Combinations of Pure Diagrams 1.2.6 The Boij-Söderberg Conjectures 1.2.7 Algorithmic Interpretation 1.2.8 Geometric Interpretation 1.3 The Exterior Facets of the Boij-Söderberg Fan and their Supporting Hyperplanes 1.3.1 The Exterior Facets 1.3.2 The Supporting Hyperplanes 1.3.3 Pairings of vector Bundles and Resolutions 1.4 The Existence of Pure Free Resolutions and of Vector Bundles with Supernatural Cohomology 1.4.1 The Equivariant Pure Free Resolution 1.4.2 Equivariant Supernatural Bundles 1.4.3 Characteristic Free Supernatural Bundles 1.4.4 The Characteristic Free Pure Resolution 1.4.5 Pure Resolutions Constructed from Generic Matrices 1.5 Cohomology of Vector Bundles on Projective Spaces 1.5.1 Cohomology Tables 1.5.2 The Fan of Cohomology Tables of Vector Bundles 1.5.3 Facet Equations 1.6 Extensions to Non-Cohen-Macaulay Modules and to Coherent Sheaves 1.6.1 Betti Diagrams of Graded Modules in General 1.6.2 Cohomology of Coherent Sheaves 1.7 Further Topics 1.7.1 The Semigroup of Betti Diagrams of Modules 1.7.2 Variants on the Grading 1.7.3 Poset Structures 1.7.4 Computer Packages 1.7.5 Three Basic Problems 2 Hilbert Functions of Fat Point Subschemes of the Plane: the Two-fold Way Anthony V. Geramita, Brian Harbourne, and Juan Migliore 2.1 Introduction 2.2 Approach I: Nine Double Points 2.3 Approach I: Points on Cubics 2.4 Approach II: Points on Cubics 3 Edge Ideals: Algebraic and Combinatorial Properties Susan Morey and Rafael H. Villarreal 3.1 Introduction 3.2 Algebraic and Combinatorial Properties of Edge Ideals 3.3 Invariants of Edge Ideals: Regularity, Projective Dimension, Depth 3.4 Stability of Associated Primes 4 Three Simplicial Resolutions Jeff Mermin 4.1 Introduction 4.2 Background and Notation 4.2.1 Algebra 4.2.2 Combinatorics 4.3 The Taylor Resolution 4.4 Simplicial Resolutions 4.5 The Scarf Complex 4.6 The Lyubeznik Resolutions 4.7 Intersections 4.8 Questions 5 A Minimal Poset Resolution of Stable Ideals Timothy B. P. Clark 5.1 Introduction 5.2 Poset Resolutions and Stable Ideals 5.3 The Shallability of PN 5.4 The Topology of PN and Properties of D(PN) 5.5 Proof of Theorem 2.4 5.6 A Minimal Cellular Resolution of R/N 6 Subsets of Complete Intersections and the EGH Conjecture Susan M. Cooper 6.1 Introduction 6.2 Preliminary Definitions and Results 6.2.1 The Eisenbud-Green-Harris Conjecture and Complete Intersections 6.3 Rectangular Complete Intersections 6.4 Some Key Tools 6.4.1 Pairs of Hilbert Functions and Maximal Growth 6.4.2 Ideals Containing Regular Sequences 6.5 Subsets of Complete Intersections in P2 6.6 Subsets of C.I.(2, d2, d3) with d2 = d3 6.7 Subsets of C.I.(3, d2, d3) with d3 = d2 6.8 An Application: The Cayley-Bacharach Property 7 The Homological Conjectures Paul C. Roberts 7.1 Introduction 7.2 The Serre Multiplicity Conjectures 7.2.1 The Vanishing Conjecture 7.2.2 Gabber's Proof of the Nonnegativity Conjecture 7.2.3 The Positivity Conjecture 7.3 The Peskine-Szpiro Intersection Conjecture 7.3.1 Hochester's Metatheorem 7.4 Generalizations of the Multiplicity Conjectures 7.4.1 The Graded Case 7.4.2 The Generalized Rigidity Conjecture 7.5 The Monomial, Direct Summand, and Canonical Element Conjectures 7.6 Cohen-Macaulay Modules and Algebras 7.6.1 Weakly Functorial Big Cohen-Macaulay Algebras 7.7 The Syzygy Conjecture and the Improved New Intersection Conjecture 7.8 Tight Closure Theory 7.9 The Strong Direct Summand Conjecture 7.10 Almost Cohen-Macaulay Algebras 7.11 A Summary of Open Questions 7.11.1 The Serre Positivity Conjecture 7.11.2 Partial Euler Characteristics 7.11.3 Strong Multiplicity Conjectures 7.11.4 Cohen-Macaulay Modules and Related Conjectures 7.11.5 Almost Cohen-Macaulay Algebras 8 The Compatibility, Independence, and Linear Growth Properties Yongwei Yao 8.1 Introduction 8.2 Primary Decomposition 8.3 Compatibility of Primary Components 8.4 Maximal Primary Components, Independence 8.5 Linear Growth of Primary Components 8.6 Linear growth of {?Tor?_c^R (?(M/(I^m M )),?(N/(J^n N)))} 8.7 Secondary Representation 8.8 Compatibility of Secondary Components 8.9 Applying a Result of Sharp on Artinian Modules 8.10 Independence 8.11 Minimal Secondary Components 8.12 Linear Growth of Secondary Components 9 Recent Progress in Coherent Rings: A Homological Perspective Livia Hummel 9.1 Introduction 9.2 Coherent Rings and Grade 9.2.1 Coherent Rings and ?(FP)?_?^R Modules 9.2.2 Non-Noetherian Grade 9.3 Cohen-Macaulay Rings 9.4 Gorenstein Dimensions and the Auslander-Bridger Property 9.4.1 Gorenstein Dimenstions 9.4.2 The Auslander-Bridger Formula 9.5 Gorenstein Rings and Injective Dimensions 9.6 Foundations for Coherent Complete Intersections 10 Non-commutative Crepant Resolutions: Scenes from Categorical Geometry Graham J. Leuschke 10.1 Introduction 10.2 Morita Equivalence 10.3 (Quasi)coherent Sheaves 10.4 Derived Categories of Modules 10.5 Derived Categories of Sheaves 10.6 Example: Tilting on Projective Space 10.7 The Non-existence of Non-commutative Spaces 10.8 Resolutions of Singularities 10.9 The Minimal Model Program 10.10. Categorical Desingularizations 10.11 Example: the McKay Correspondence 10.12 Non-commutative Crepant Resolutions 10.13 Example: Normalization 10.14 MCM Endomorphism Rings 10.15 Global Dimension of Endomorphism Rings 10.16 Rational Singularities 10.17 Examples: Finite Representation Type 10.18 Example: the Generic Determinant 10.19 Non-commutative Blowups 10.20 Omissions and Open QuestionsReviewsAuthor InformationChristopher Francisco, Oklahoma State University, Stillwater, Oklahoma, USA; Lee C. Klingler, Florida Atlantic University, Boca Raton, Florida, USA; Sean M. Sather-Wagstaff, North Dakota State University, Fargo, North Dakota, USA; Janet Vassilev, University of New Mexico, Albuquerque, New Mexico, USA. Tab Content 6Author Website:Countries AvailableAll regions |
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