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Functional Equations - Results And Advances

118,59€ + 10% CARD

 The theory of functional equations has been developed in a rapid and productive way in the second half of the 20th Century. This volume reflects the complexity and applicability of the active research fields. It contains the results and methods that give a representative cross-section of what is happening in the theory of functional equations.
ENGLISH

Applications Of Hyperstructure Theory

by P. Corsini e V. Leoreanu

264,34€ + 10% CARD

 Presents various applications of hyperstructures. There are applications to the following subjects: geometry; hypergraphs; binary relations; lattices; fuzzy sets and rough sets; automata; cryptography; median algebras, relation algebras; combinatorics; codes; artificial intelligence; probabilities. This work is useful for students and researchers.
ENGLISH

Commutative Semigroups

by P.A. Grillet

255,73€ + 10% CARD

 This book about commutative semigroups has its emphasis on structure but the other parts of the theory are at least surveyed and a full set of about 850 references is included. The book is intended for mathematicians who do research on semigroups or who encounter commutative semigroups.
ENGLISH

Special Classes Of Semigroups

by A. Nagy

118,59€ + 10% CARD

 In semigroup theory there are certain kinds of band decompositions, which are useful in the study of the structure semigroups. This book focuses attention on such classes of semigroups and provides a systematic review on this subject. The first chapter is an introduction. The remaining chapters are devoted to special semigroup classes.
ENGLISH

Projectors And Projection Methods

by Aurel Galantai

171,59€ + 10% CARD

 The projectors are considered as simple but important type of matrices and operators. Their basic theory can be found in many books, among which Hal mas [177], [178] are of particular significance. The projectors or projections became an active research area in the last two decades due to ideas generated from linear algebra, statistics and various areas of algorithmic mathematics. There has also grown up a great and increasing number of projection meth ods for different purposes. The aim of this book is to give a unified survey on projectors and projection methods including the most recent results. The words projector, projection and idempotent are used as synonyms, although the word projection is more common. We assume that the reader is familiar with linear algebra and mathemati cal analysis at a bachelor level. The first chapter includes supplements from linear algebra and matrix analysis that are not incorporated in the standard courses. The second and the last chapter include the theory of projectors. Four chapters are devoted to projection methods for solving linear and non linear systems of algebraic equations and convex optimization problems.
ENGLISH

Nearrings - Some Developments Linked To Semigroups And Groups

by G. Ferrero

290,84€ + 10% CARD

 Presents new and old constructions of nearrings. This work studies links between properties of the multiplicative of nearrings (as regularity conditions and identities) and the structure of nearrings. It is aimed at researchers working in nearring theory, group theory, semigroup theory, designs, and translation planes.
ENGLISH

Dualisability - Unary Algebras And Beyond

by Brian A. Davey e Jane G. Pitkethly

89,21€ + 10% CARD

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 Natural duality theory is one of the major growth areas within general algebra. This combination of local simplicity and global complexity ensures that, for the study of natural duality theory, unary algebras are an excellent source of examples and counterexamples. A number of results appear here for the first time.
ENGLISH

M-Solid Varieties Of Algebras

by Jorg Koppitz e Klaus Denecke

118,59€ + 10% CARD

 Presents an introduction to the fundamentals of the hyperequational theory of universal algebra, offering the results on solid varieties of semirings and semigroups. This book aims to develop the theory of solid varieties as a system of mathematical discourse that is applicable in several concrete situations.
ENGLISH

Dualisability - Unary Algebras And Beyond

by Brian A. Davey e Jane G. Pitkethly

118,59€ + 10% CARD

 Natural duality theory is one of the major growth areas within general algebra. This text provides a short path to the forefront of research in duality theory. It presents a coherent approach to new results in the area, as well as exposing open problems.Unary algebras play a special role throughout the text. Individual unary algebras are relatively simple and easy to work with. But as a class they have a rich and complex entanglement with dualisability. This combination of local simplicity and global complexity ensures that, for the study of natural duality theory, unary algebras are an excellent source of examples and counterexamples.A number of results appear here for the first time. In particular, the text ends with an appendix that provides a new and definitive approach to the concept of the rank of a finite algebra and its relationship with strong dualisability.
ENGLISH

Regularity Properties Of Functional Equations In Several Variables

by Antal Jarai

118,59€ + 10% CARD

 Talks about regularity properties of functional equations. This book contains the modern results about regularity of non-composite functional equations with several variables. These results show that 'weak' regularity properties of solutions imply that they are in C(infinity), and hence the equation can be reduced to a differential equation.
ENGLISH

Dualisability - Unary Algebras And Beyond

by Brian Davey e Jane Pitkethly

OUT OF STOCK OR NOT AVAILABLE

 Presenting the research in duality theory, this work discusses results in the area, as well as open problems. Unary algebras play a special role throughout the text. An appendix provides a definitive approach to the concept of the rank of a finite algebra and its relationship with strong dualisability.

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