Geometric Invariant Theory
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Author |
: Nolan R. Wallach |
Publisher |
: Springer |
Total Pages |
: 199 |
Release |
: 2017-09-08 |
ISBN-10 |
: 9783319659077 |
ISBN-13 |
: 3319659073 |
Rating |
: 4/5 (77 Downloads) |
Synopsis Geometric Invariant Theory by : Nolan R. Wallach
Geometric Invariant Theory (GIT) is developed in this text within the context of algebraic geometry over the real and complex numbers. This sophisticated topic is elegantly presented with enough background theory included to make the text accessible to advanced graduate students in mathematics and physics with diverse backgrounds in algebraic and differential geometry. Throughout the book, examples are emphasized. Exercises add to the reader’s understanding of the material; most are enhanced with hints. The exposition is divided into two parts. The first part, ‘Background Theory’, is organized as a reference for the rest of the book. It contains two chapters developing material in complex and real algebraic geometry and algebraic groups that are difficult to find in the literature. Chapter 1 emphasizes the relationship between the Zariski topology and the canonical Hausdorff topology of an algebraic variety over the complex numbers. Chapter 2 develops the interaction between Lie groups and algebraic groups. Part 2, ‘Geometric Invariant Theory’ consists of three chapters (3–5). Chapter 3 centers on the Hilbert–Mumford theorem and contains a complete development of the Kempf–Ness theorem and Vindberg’s theory. Chapter 4 studies the orbit structure of a reductive algebraic group on a projective variety emphasizing Kostant’s theory. The final chapter studies the extension of classical invariant theory to products of classical groups emphasizing recent applications of the theory to physics.
Author |
: David Mumford |
Publisher |
: Springer |
Total Pages |
: 248 |
Release |
: 1982 |
ISBN-10 |
: UCSC:32106005336216 |
ISBN-13 |
: |
Rating |
: 4/5 (16 Downloads) |
Synopsis Geometric Invariant Theory by : David Mumford
This standard reference on applications of invariant theory to the construction of moduli spaces is a systematic exposition of the geometric aspects of classical theory of polynomial invariants. This new, revised edition is completely updated and enlarged with an additional chapter on the moment map by Professor Frances Kirwan. It includes a fully updated bibliography of work in this area.
Author |
: Igor Dolgachev |
Publisher |
: Cambridge University Press |
Total Pages |
: 244 |
Release |
: 2003-08-07 |
ISBN-10 |
: 0521525489 |
ISBN-13 |
: 9780521525480 |
Rating |
: 4/5 (89 Downloads) |
Synopsis Lectures on Invariant Theory by : Igor Dolgachev
The primary goal of this 2003 book is to give a brief introduction to the main ideas of algebraic and geometric invariant theory. It assumes only a minimal background in algebraic geometry, algebra and representation theory. Topics covered include the symbolic method for computation of invariants on the space of homogeneous forms, the problem of finite-generatedness of the algebra of invariants, the theory of covariants and constructions of categorical and geometric quotients. Throughout, the emphasis is on concrete examples which originate in classical algebraic geometry. Based on lectures given at University of Michigan, Harvard University and Seoul National University, the book is written in an accessible style and contains many examples and exercises. A novel feature of the book is a discussion of possible linearizations of actions and the variation of quotients under the change of linearization. Also includes the construction of toric varieties as torus quotients of affine spaces.
Author |
: Alfonso Zamora Saiz |
Publisher |
: Springer Nature |
Total Pages |
: 127 |
Release |
: 2021-03-24 |
ISBN-10 |
: 9783030678296 |
ISBN-13 |
: 3030678296 |
Rating |
: 4/5 (96 Downloads) |
Synopsis Geometric Invariant Theory, Holomorphic Vector Bundles and the Harder-Narasimhan Filtration by : Alfonso Zamora Saiz
This book introduces key topics on Geometric Invariant Theory, a technique to obtaining quotients in algebraic geometry with a good set of properties, through various examples. It starts from the classical Hilbert classification of binary forms, advancing to the construction of the moduli space of semistable holomorphic vector bundles, and to Hitchin’s theory on Higgs bundles. The relationship between the notion of stability between algebraic, differential and symplectic geometry settings is also covered. Unstable objects in moduli problems -- a result of the construction of moduli spaces -- get specific attention in this work. The notion of the Harder-Narasimhan filtration as a tool to handle them, and its relationship with GIT quotients, provide instigating new calculations in several problems. Applications include a survey of research results on correspondences between Harder-Narasimhan filtrations with the GIT picture and stratifications of the moduli space of Higgs bundles. Graduate students and researchers who want to approach Geometric Invariant Theory in moduli constructions can greatly benefit from this reading, whose key prerequisites are general courses on algebraic geometry and differential geometry.
Author |
: Alexander H. W. Schmitt |
Publisher |
: European Mathematical Society |
Total Pages |
: 404 |
Release |
: 2008 |
ISBN-10 |
: 3037190655 |
ISBN-13 |
: 9783037190654 |
Rating |
: 4/5 (55 Downloads) |
Synopsis Geometric Invariant Theory and Decorated Principal Bundles by : Alexander H. W. Schmitt
The book starts with an introduction to Geometric Invariant Theory (GIT). The fundamental results of Hilbert and Mumford are exposed as well as more recent topics such as the instability flag, the finiteness of the number of quotients, and the variation of quotients. In the second part, GIT is applied to solve the classification problem of decorated principal bundles on a compact Riemann surface. The solution is a quasi-projective moduli scheme which parameterizes those objects that satisfy a semistability condition originating from gauge theory. The moduli space is equipped with a generalized Hitchin map. Via the universal Kobayashi-Hitchin correspondence, these moduli spaces are related to moduli spaces of solutions of certain vortex type equations. Potential applications include the study of representation spaces of the fundamental group of compact Riemann surfaces. The book concludes with a brief discussion of generalizations of these findings to higher dimensional base varieties, positive characteristic, and parabolic bundles. The text is fairly self-contained (e.g., the necessary background from the theory of principal bundles is included) and features numerous examples and exercises. It addresses students and researchers with a working knowledge of elementary algebraic geometry.
Author |
: Shigeru Mukai |
Publisher |
: Cambridge University Press |
Total Pages |
: 528 |
Release |
: 2003-09-08 |
ISBN-10 |
: 0521809061 |
ISBN-13 |
: 9780521809061 |
Rating |
: 4/5 (61 Downloads) |
Synopsis An Introduction to Invariants and Moduli by : Shigeru Mukai
Sample Text
Author |
: Harm Derksen |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 272 |
Release |
: 2013-04-17 |
ISBN-10 |
: 9783662049587 |
ISBN-13 |
: 3662049589 |
Rating |
: 4/5 (87 Downloads) |
Synopsis Computational Invariant Theory by : Harm Derksen
This book, the first volume of a subseries on "Invariant Theory and Algebraic Transformation Groups", provides a comprehensive and up-to-date overview of the algorithmic aspects of invariant theory. Numerous illustrative examples and a careful selection of proofs make the book accessible to non-specialists.
Author |
: Bernd Sturmfels |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 202 |
Release |
: 2008-06-17 |
ISBN-10 |
: 9783211774175 |
ISBN-13 |
: 3211774173 |
Rating |
: 4/5 (75 Downloads) |
Synopsis Algorithms in Invariant Theory by : Bernd Sturmfels
This book is both an easy-to-read textbook for invariant theory and a challenging research monograph that introduces a new approach to the algorithmic side of invariant theory. Students will find the book an easy introduction to this "classical and new" area of mathematics. Researchers in mathematics, symbolic computation, and computer science will get access to research ideas, hints for applications, outlines and details of algorithms, examples and problems.
Author |
: P. E. Newstead |
Publisher |
: Alpha Science International Limited |
Total Pages |
: 166 |
Release |
: 2012 |
ISBN-10 |
: 8184871627 |
ISBN-13 |
: 9788184871623 |
Rating |
: 4/5 (27 Downloads) |
Synopsis Introduction to Moduli Problems and Orbit Spaces by : P. E. Newstead
Geometric Invariant Theory (GIT), developed in the 1960s by David Mumford, is the theory of quotients by group actions in Algebraic Geometry. Its principal application is to the construction of various moduli spaces. Peter Newstead gave a series of lectures in 1975 at the Tata Institute of Fundamental Research, Mumbai on GIT and its application to the moduli of vector bundles on curves. It was a masterful yet easy to follow exposition of important material, with clear proofs and many examples. The notes, published as a volume in the TIFR lecture notes series, became a classic, and generations of algebraic geometers working in these subjects got their basic introduction to this area through these lecture notes. Though continuously in demand, these lecture notes have been out of print for many years. The Tata Institute is happy to re-issue these notes in a new print.
Author |
: V. Lakshmibai |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 271 |
Release |
: 2007-12-23 |
ISBN-10 |
: 9783540767572 |
ISBN-13 |
: 3540767576 |
Rating |
: 4/5 (72 Downloads) |
Synopsis Standard Monomial Theory by : V. Lakshmibai
Schubert varieties provide an inductive tool for studying flag varieties. This book is mainly a detailed account of a particularly interesting instance of their occurrence: namely, in relation to classical invariant theory. More precisely, it is about the connection between the first and second fundamental theorems of classical invariant theory on the one hand and standard monomial theory for Schubert varieties in certain special flag varieties on the other.