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Cet ouvrage est avant tout construit sur l'idée, assez personnelle aux auteurs, que c'est l'existence d'amas stables dans la structure qui force la quasipériodicité et explique les propriétés étranges de ces matériaux. Étudiants en 3e cycle sur la matière condensée, chercheurs non spécialistes, enseignants.

Quasicrystals. --- Quasi-crystals --- Condensed matter --- Crystals --- Quasicrystals

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This is the proceedings volume of the International Centre for Pure and Applied Mathematics Summer School course held in Ankara, Turkey, in August 2008. Contributors include Bozta?, Udaya, Dinh, Ling, L�opez-Permouth, Szabo, Honold, Landjev and Wood. The aim is to present a survey in fundamental areas and highlight some recent results.

Coding theory --- Rings (Algebra) --- Quasi-Frobenius rings --- Number theory

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521.03 --- Quasars --- Radio astronomy --- Radioastronomy --- Astronomy --- Interstellar communication --- QSOs (Astronomy) --- Quasi-stellar radio sources --- Radio sources (Astronomy) --- Theoretical astronomy. Celestial mechanics--?.03 --- 521.03 Theoretical astronomy. Celestial mechanics--?.03 --- Radiobronnen (Quasi Sterre-). --- Radio-sources quasi-stellaires. --- Radioastronomie --- Radiosterrenkunde.

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This book is based on a course taught to an audience of undergraduate and graduate students at Oxford, and can be viewed as a bridge between the study of metric spaces and general topological spaces. About half the book is devoted to relatively little-known results, much of which is published here for the first time. The author sketches a theory of uniform transformation groups, leading to the theory of uniform spaces over a base and hence to the theory of uniform covering spaces. Readers interested in general topology will find much to interest them here.

Uniform spaces. --- Spaces, Uniform --- Structures, Uniform --- Uniform structures --- Quasi-uniform spaces --- Topology --- Nearness spaces --- Uniform spaces

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Published in honor of Victor L. Selivanov, the 17 articles collected in this volume inform on the latest developments in computability theory and its applications in computable analysis; descriptive set theory and topology; and the theory of omega-languages; as well as non-classical logics, such as temporal logic and paraconsistent logic. This volume will be of interest to mathematicians and logicians, as well as theoretical computer scientists.

Logic, Symbolic and mathematical --- Algebra, Boolean --- Quasi-metric spaces --- Petri nets --- Set theory --- Spaces, Quasi-metric --- Metric spaces --- Boolean algebra --- Boole's algebra --- Algebraic logic --- Computability theory. --- descriptive set theory. --- non-classical logic.