Deformations of Mathematical Structures

Deformations of Mathematical Structures PDF Author: Julian Lawrynowicz
Publisher: Springer Science & Business Media
ISBN: 940092643X
Category : Mathematics
Languages : en
Pages : 347

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Book Description
Selected Papers from the Seminar on Deformations, Lódz-Lublin, 1985/87

Deformations of Mathematical Structures

Deformations of Mathematical Structures PDF Author: Julian Lawrynowicz
Publisher: Springer Science & Business Media
ISBN: 940092643X
Category : Mathematics
Languages : en
Pages : 347

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Book Description
Selected Papers from the Seminar on Deformations, Lódz-Lublin, 1985/87

Complex Manifolds and Deformation of Complex Structures

Complex Manifolds and Deformation of Complex Structures PDF Author: K. Kodaira
Publisher: Springer Science & Business Media
ISBN: 1461385903
Category : Mathematics
Languages : en
Pages : 476

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Book Description
This book is an introduction to the theory of complex manifolds and their deformations. Deformation of the complex structure of Riemann surfaces is an idea which goes back to Riemann who, in his famous memoir on Abelian functions published in 1857, calculated the number of effective parameters on which the deformation depends. Since the publication of Riemann's memoir, questions concerning the deformation of the complex structure of Riemann surfaces have never lost their interest. The deformation of algebraic surfaces seems to have been considered first by Max Noether in 1888 (M. Noether: Anzahl der Modulen einer Classe algebraischer Fliichen, Sitz. K6niglich. Preuss. Akad. der Wiss. zu Berlin, erster Halbband, 1888, pp. 123-127). However, the deformation of higher dimensional complex manifolds had been curiously neglected for 100 years. In 1957, exactly 100 years after Riemann's memoir, Frolicher and Nijenhuis published a paper in which they studied deformation of higher dimensional complex manifolds by a differential geometric method and obtained an important result. (A. Fr61icher and A. Nijenhuis: A theorem on stability of complex structures, Proc. Nat. Acad. Sci., U.S.A., 43 (1957), 239-241).

Deformations of Mathematical Structures II

Deformations of Mathematical Structures II PDF Author: Julian Lawrynowicz
Publisher: Springer Science & Business Media
ISBN: 9401118965
Category : Mathematics
Languages : en
Pages : 470

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Book Description
This volume presents a collection of papers on geometric structures in the context of Hurwitz-type structures and applications to surface physics. The first part of this volume concentrates on the analysis of geometric structures. Topics covered are: Clifford structures, Hurwitz pair structures, Riemannian or Hermitian manifolds, Dirac and Breit operators, Penrose-type and Kaluza--Klein-type structures. The second part contains a study of surface physics structures, in particular boundary conditions, broken symmetry and surface decorations, as well as nonlinear solutions and dynamical properties: a near surface region. For mathematicians and mathematical physicists interested in the applications of mathematical structures.

Quantization, Geometry and Noncommutative Structures in Mathematics and Physics

Quantization, Geometry and Noncommutative Structures in Mathematics and Physics PDF Author: Alexander Cardona
Publisher: Springer
ISBN: 3319654276
Category : Science
Languages : en
Pages : 347

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Book Description
This monograph presents various ongoing approaches to the vast topic of quantization, which is the process of forming a quantum mechanical system starting from a classical one, and discusses their numerous fruitful interactions with mathematics.The opening chapter introduces the various forms of quantization and their interactions with each other and with mathematics.A first approach to quantization, called deformation quantization, consists of viewing the Planck constant as a small parameter. This approach provides a deformation of the structure of the algebra of classical observables rather than a radical change in the nature of the observables. When symmetries come into play, deformation quantization needs to be merged with group actions, which is presented in chapter 2, by Simone Gutt.The noncommutativity arising from quantization is the main concern of noncommutative geometry. Allowing for the presence of symmetries requires working with principal fiber bundles in a non-commutative setup, where Hopf algebras appear naturally. This is the topic of chapter 3, by Christian Kassel. Nichols algebras, a special type of Hopf algebras, are the subject of chapter 4, by Nicolás Andruskiewitsch. The purely algebraic approaches given in the previous chapters do not take the geometry of space-time into account. For this purpose a special treatment using a more geometric point of view is required. An approach to field quantization on curved space-time, with applications to cosmology, is presented in chapter 5 in an account of the lectures of Abhay Ashtekar that brings a complementary point of view to non-commutativity.An alternative quantization procedure is known under the name of string theory. In chapter 6 its supersymmetric version is presented. Superstrings have drawn the attention of many mathematicians, due to its various fruitful interactions with algebraic geometry, some of which are described here. The remaining chapters discuss further topics, as the Batalin-Vilkovisky formalism and direct products of spectral triples.This volume addresses both physicists and mathematicians and serves as an introduction to ongoing research in very active areas of mathematics and physics at the border line between geometry, topology, algebra and quantum field theory.

Noncommutative Deformation Theory

Noncommutative Deformation Theory PDF Author: Eivind Eriksen
Publisher: CRC Press
ISBN: 1351652125
Category : Mathematics
Languages : en
Pages : 382

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Book Description
Noncommutative Deformation Theory is aimed at mathematicians and physicists studying the local structure of moduli spaces in algebraic geometry. This book introduces a general theory of noncommutative deformations, with applications to the study of moduli spaces of representations of associative algebras and to quantum theory in physics. An essential part of this theory is the study of obstructions of liftings of representations using generalised (matric) Massey products. Suitable for researchers in algebraic geometry and mathematical physics interested in the workings of noncommutative algebraic geometry, it may also be useful for advanced graduate students in these fields.

Formal Moduli of Algebraic Structures

Formal Moduli of Algebraic Structures PDF Author: O. A. Laudal
Publisher: Springer
ISBN: 3540385320
Category : Mathematics
Languages : en
Pages : 165

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Book Description


Deformation Theory

Deformation Theory PDF Author: Robin Hartshorne
Publisher: Springer Science & Business Media
ISBN: 1441915966
Category : Mathematics
Languages : en
Pages : 241

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Book Description
The basic problem of deformation theory in algebraic geometry involves watching a small deformation of one member of a family of objects, such as varieties, or subschemes in a fixed space, or vector bundles on a fixed scheme. In this new book, Robin Hartshorne studies first what happens over small infinitesimal deformations, and then gradually builds up to more global situations, using methods pioneered by Kodaira and Spencer in the complex analytic case, and adapted and expanded in algebraic geometry by Grothendieck. The author includes numerous exercises, as well as important examples illustrating various aspects of the theory. This text is based on a graduate course taught by the author at the University of California, Berkeley.

Deformation Theory of Algebras and Their Diagrams

Deformation Theory of Algebras and Their Diagrams PDF Author: Martin Markl
Publisher: American Mathematical Soc.
ISBN: 0821889796
Category : Mathematics
Languages : en
Pages : 143

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Book Description
This book brings together both the classical and current aspects of deformation theory. The presentation is mostly self-contained, assuming only basic knowledge of commutative algebra, homological algebra and category theory. In the interest of readability, some technically complicated proofs have been omitted when a suitable reference was available. The relation between the uniform continuity of algebraic maps and topologized tensor products is explained in detail, however, as this subject does not seem to be commonly known and the literature is scarce. The exposition begins by recalling Gerstenhaber's classical theory for associative algebras. The focus then shifts to a homotopy-invariant setup of Maurer-Cartan moduli spaces. As an application, Kontsevich's approach to deformation quantization of Poisson manifolds is reviewed. Then, after a brief introduction to operads, a strongly homotopy Lie algebra governing deformations of (diagrams of) algebras of a given type is described, followed by examples and generalizations.

Several Complex Variables IV

Several Complex Variables IV PDF Author: Semen G. Gindikin
Publisher: Springer Science & Business Media
ISBN: 3642612636
Category : Mathematics
Languages : en
Pages : 257

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Book Description
This volume of the EMS contains four survey articles on analytic spaces. They are excellent introductions to each respective area. Starting from basic principles in several complex variables each article stretches out to current trends in research. Graduate students and researchers will find a useful addition in the extensive bibliography at the end of each article.

Geometric Measure Theory and the Calculus of Variations

Geometric Measure Theory and the Calculus of Variations PDF Author: William K. Allard
Publisher: American Mathematical Soc.
ISBN: 0821814702
Category : Mathematics
Languages : en
Pages : 482

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Book Description
Includes twenty-six papers that survey a cross section of work in modern geometric measure theory and its applications in the calculus of variations. This title provides an access to the material, including introductions and summaries of many of the authors' much longer works and a section containing 80 open problems in the field.