General Galois Geometries

Author: James Hirschfeld,Joseph A. Thas

Publisher: Springer

ISBN: 1447167902

Category: Mathematics

Page: 409

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This book is the second edition of the third and last volume of a treatise on projective spaces over a finite field, also known as Galois geometries. This volume completes the trilogy comprised of plane case (first volume) and three dimensions (second volume). This revised edition includes much updating and new material. It is a mostly self-contained study of classical varieties over a finite field, related incidence structures and particular point sets in finite n-dimensional projective spaces. General Galois Geometries is suitable for PhD students and researchers in combinatorics and geometry. The separate chapters can be used for courses at postgraduate level.
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Arithmetic, Geometry, Cryptography and Coding Theory

Author: Alp Bassa,Alain Couvreur,David Kohel

Publisher: American Mathematical Soc.

ISBN: 1470428105

Category: Algebraic geometry -- Arithmetic problems. Diophantine geometry -- Finite ground fields

Page: 199

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This volume contains the proceedings of the 15th International Conference on Arithmetic, Geometry, Cryptography, and Coding Theory (AGCT), held at the Centre International de Rencontres Mathématiques in Marseille, France, from May 18–22, 2015. Since the first meeting almost 30 years ago, the biennial AGCT meetings have been one of the main events bringing together researchers interested in explicit aspects of arithmetic geometry and applications to coding theory and cryptography. This volume contains original research articles reflecting recent developments in the field.
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Codes, Cryptology and Curves with Computer Algebra

Author: Ruud Pellikaan,Stanislav Bulygin,Xin-Wen Wu,Relinde Jurrius

Publisher: Cambridge University Press

ISBN: 0521817110

Category: Language Arts & Disciplines

Page: 600

View: 3411

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Graduate-level introduction to error-correcting codes, which are used to protect digital data and applied in public key cryptosystems.
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Foundations of Incidence Geometry

Projective and Polar Spaces

Author: Johannes Ueberberg

Publisher: Springer Science & Business Media

ISBN: 3642209726

Category: Mathematics

Page: 248

View: 4813

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Incidence geometry is a central part of modern mathematics that has an impressive tradition. The main topics of incidence geometry are projective and affine geometry and, in more recent times, the theory of buildings and polar spaces. Embedded into the modern view of diagram geometry, projective and affine geometry including the fundamental theorems, polar geometry including the Theorem of Buekenhout-Shult and the classification of quadratic sets are presented in this volume. Incidence geometry is developed along the lines of the fascinating work of Jacques Tits and Francis Buekenhout. The book is a clear and comprehensible introduction into a wonderful piece of mathematics. More than 200 figures make even complicated proofs accessible to the reader.
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Brauer Groups, Hopf Algebras and Galois Theory

Author: Stefaan Caenepeel

Publisher: Springer Science & Business Media

ISBN: 9781402003462

Category: Mathematics

Page: 488

View: 2798

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This volume is devoted to the Brauer group of a commutative ring and related invariants. Part I presents a new self-contained exposition of the Brauer group of a commutative ring. Included is a systematic development of the theory of Grothendieck topologies and �tale cohomology, and discussion of topics such as Gabber's theorem and the theory of Taylor's big Brauer group of algebras without a unit. Part II presents a systematic development of the Galois theory of Hopf algebras with special emphasis on the group of Galois objects of a cocommutative Hopf algebra. The development of the theory is carried out in such a way that the connection to the theory of the Brauer group in Part I is made clear. Recent developments are considered and examples are included. The Brauer-Long group of a Hopf algebra over a commutative ring is discussed in Part III. This provides a link between the first two parts of the volume and is the first time this topic has been discussed in a monograph. Audience: Researchers whose work involves group theory. The first two parts, in particular, can be recommended for supplementary, graduate course use.
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Valued Fields

Author: Antonio J. Engler,Alexander Prestel

Publisher: Springer Science & Business Media

ISBN: 354030035X

Category: Mathematics

Page: 208

View: 2029

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Absolute values and their completions – such as the p-adic number fields – play an important role in number theory. Krull's generalization of absolute values to valuations made possible applications in other branches of mathematics. In valuation theory, the notion of completion must be replaced by that of "Henselization". This book develops the theory of valuations as well as of Henselizations, based on the skills of a standard graduate course in algebra.
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Dessins d'Enfants on Riemann Surfaces

Author: Gareth A. Jones,Jürgen Wolfart

Publisher: Springer

ISBN: 3319247115

Category: Mathematics

Page: 259

View: 3395

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This volume provides an introduction to dessins d'enfants and embeddings of bipartite graphs in compact Riemann surfaces. The first part of the book presents basic material, guiding the reader through the current field of research. A key point of the second part is the interplay between the automorphism groups of dessins and their Riemann surfaces, and the action of the absolute Galois group on dessins and their algebraic curves. It concludes by showing the links between the theory of dessins and other areas of arithmetic and geometry, such as the abc conjecture, complex multiplication and Beauville surfaces. Dessins d'Enfants on Riemann Surfaces will appeal to graduate students and all mathematicians interested in maps, hypermaps, Riemann surfaces, geometric group actions, and arithmetic.
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