Quasicrystals, Networks, and Molecules of Fivefold Symmetry

Quasicrystals, Networks, and Molecules of Fivefold Symmetry PDF Author: István Hargittai
Publisher: Wiley-VCH
ISBN:
Category : Science
Languages : en
Pages : 340

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Book Description
Fundamental phenomena and laws of nature are related to symmetry and, accordingly, symmetry is one of science's basic concepts. Istvan Hargittai has written and edited extensively on the question of symmetry in chemistry, and he has here assembled some very interesting papers which deal with the question of symmetry as it relates to quasi- crystals, networks and their relationships within a fivefold symmetrical context. This information will be useful to chemists (particulary organic and computational chemists) in creating new chemical structures for specific new uses.

Quasicrystals, Networks, and Molecules of Fivefold Symmetry

Quasicrystals, Networks, and Molecules of Fivefold Symmetry PDF Author: István Hargittai
Publisher: Wiley-VCH
ISBN:
Category : Science
Languages : en
Pages : 340

Get Book Here

Book Description
Fundamental phenomena and laws of nature are related to symmetry and, accordingly, symmetry is one of science's basic concepts. Istvan Hargittai has written and edited extensively on the question of symmetry in chemistry, and he has here assembled some very interesting papers which deal with the question of symmetry as it relates to quasi- crystals, networks and their relationships within a fivefold symmetrical context. This information will be useful to chemists (particulary organic and computational chemists) in creating new chemical structures for specific new uses.

Fivefold Symmetry

Fivefold Symmetry PDF Author: Istv n Hargittai
Publisher: World Scientific
ISBN: 9789810206000
Category : Science
Languages : en
Pages : 594

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Book Description
Fivefold symmetry is common in flowers, fruits, molecules, logos, and buildings, but it is a forbidden symmetry in the world of crystals. A few years ago, the so-called quasicrystals were discovered displaying fivefold symmetry, and it caused a minirevolution in crystallography. There has been increased awareness of fivefold symmetry in all domains of human interest ever since. The present book brings together authors and ideas on a common theme from mathematics, the sciences, design, and anthropology to history, literature, and the arts. Its 29 chapters are an offering by scientists and humanists from 13 countries to a broad readership of professionals and laypersons about fivefold symmetry and the areas that are being bridged by this unique concept.

Quasicrystals

Quasicrystals PDF Author: J.-B. Suck
Publisher: Springer Science & Business Media
ISBN: 3662050285
Category : Science
Languages : en
Pages : 575

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Book Description
The book provides an introduction to all aspects of the physics of quasicrystals. The chapters, each written by an expert in this field, cover quasiperiodic tilings and the modeling of the atomic structure of quasicrystals. The electronic density of states and the calculation of the electronic structure play a key role in this introduction, as does an extensive discussion of the atomic dynamics. The study of defects in quasicrystals by high resolution electron microscopy and the computer simulations of defects and fracture in decorated tilings are important subjects for the application of these aperiodic crystals.

Quasicrystals and Geometry

Quasicrystals and Geometry PDF Author: Marjorie Senechal
Publisher: CUP Archive
ISBN: 9780521575416
Category : Mathematics
Languages : en
Pages : 310

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Book Description
This first-ever detailed account of quasicrystal geometry will be of great value to mathematicians at all levels with an interest in quasicrystals and geometry, and will also be of interest to graduate students and researchers in solid state physics, crystallography and materials science.

Quasicrystals

Quasicrystals PDF Author: Christian Janot
Publisher: Oxford University Press, USA
ISBN: 0199657408
Category : Medical
Languages : en
Pages : 428

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Book Description
In 1984 physicists discovered a monster in the world of crystallography, a structure that appeared to contain five-fold symmetry axes, which cannot exist in strictly periodic structures. Such quasi-periodic structures became known as quasicrystals. A previously formulated theory in terms of higher dimensional space groups was applied to them and new alloy phases were prepared which exhibited the properties expected from this model more closely. Thus many of the early controversies were dissolved. In 2011, the Nobel Prize for Chemistry was awarded to Dan Shechtman for the discovery of quasicrystals. This primer provides a descriptive approach to the subject for those coming to it for the first time. The various practical, experimental, and theoretical topics are dealt with in an accessible style. The book is completed by problem sets and there is a computer program that generates a Penrose lattice.

Automatic Sequences

Automatic Sequences PDF Author: Jean-Paul Allouche
Publisher: Cambridge University Press
ISBN: 9780521823326
Category : Computers
Languages : en
Pages : 592

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Book Description
Uniting dozens of seemingly disparate results from different fields, this book combines concepts from mathematics and computer science to present the first integrated treatment of sequences generated by 'finite automata'. The authors apply the theory to the study of automatic sequences and their generalizations, such as Sturmian words and k-regular sequences. And further, they provide applications to number theory (particularly to formal power series and transcendence in finite characteristic), physics, computer graphics, and music. Starting from first principles wherever feasible, basic results from combinatorics on words, numeration systems, and models of computation are discussed. Thus this book is suitable for graduate students or advanced undergraduates, as well as for mature researchers wishing to know more about this fascinating subject. Results are presented from first principles wherever feasible, and the book is supplemented by a collection of 460 exercises, 85 open problems, and over 1600 citations to the literature.

Coverings of Discrete Quasiperiodic Sets

Coverings of Discrete Quasiperiodic Sets PDF Author: Peter Kramer
Publisher: Springer
ISBN: 3540458050
Category : Science
Languages : en
Pages : 287

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Book Description
In this up-to-date review and guide to most recent literature, the expert authors develop concepts related to quasiperiodic coverings and describe results. The text describes specific systems in 2 and 3 dimensions with many illustrations, and analyzes the atomic positions in quasicrystals.

Fundamentals of Crystallography

Fundamentals of Crystallography PDF Author: Carmelo Giacovazzo
Publisher: Oxford University Press, USA
ISBN: 9780198509585
Category : Science
Languages : en
Pages : 860

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Book Description
In recent years crystallographic techniques have found applications in a wide range of subjects, and these applications in turn have led to exciting developments in the field of crystallography itself. This completely revised text offers a rigorous treatment of the theory and describes experimental applications in many fields: crystal symmetry, crystallographic computing, X-ray diffraction, crystal structure solution, mineral and inorganic crystal chemistry, protein crystallography, crystallography of real crystals, and crystal physics. A set of pedagogical tools on CD-ROM has been added to this new edition.

From Here to Infinity

From Here to Infinity PDF Author: Ian Stewart
Publisher: Oxford Paperbacks
ISBN: 0192832026
Category : Mathematics
Languages : en
Pages : 338

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Book Description
A retitled and revised edition of Ian Stewart's The Problem of Mathematics, this is the perfect guide to today's mathematics. Read about the latest discoveries, including Andrew Wile's amazing proof of Fermat's Last Theorem, the newest advances in knot theory, the Four Colour Theorem, Chaos Theory, and fake four-dimensial spaces. See how simple concepts from probability theory shed light on the National Lottery and tell you how to maximize your winnings. Discover howinfinitesimals become respectable, why there are different kinds of infinity, and how to square the circle with the mathematical equivalent of a pair of scissors.

Symmetry through the Eyes of a Chemist

Symmetry through the Eyes of a Chemist PDF Author: Magdolna Hargittai
Publisher: Springer Science & Business Media
ISBN: 1402056281
Category : Science
Languages : en
Pages : 528

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Book Description
It is gratifying to launch the third edition of our book. Its coming to life testi?es about the task it has ful?lled in the service of the com- nity of chemical research and learning. As we noted in the Prefaces to the ?rst and second editions, our book surveys chemistry from the point of view of symmetry. We present many examples from ch- istry as well as from other ?elds to emphasize the unifying nature of the symmetry concept. Our aim has been to provide aesthetic pl- sure in addition to learning experience. In our ?rst Preface we paid tribute to two books in particular from which we learned a great deal; they have in?uenced signi?cantly our approach to the subject matter of our book. They are Weyl’s classic, Symmetry, and Shubnikov and Koptsik’s Symmetry in Science and Art. The structure of our book has not changed. Following the Int- duction (Chapter 1), Chapter 2 presents the simplest symmetries using chemical and non-chemical examples. Molecular geometry is discussed in Chapter 3. The next four chapters present gro- theoretical methods (Chapter 4) and, based on them, discussions of molecular vibrations (Chapter 5), electronic structures (Chapter 6), and chemical reactions (Chapter 7). For the last two chapters we return to a qualitative treatment and introduce space-group sym- tries (Chapter 8), concluding with crystal structures (Chapter 9). For the third edition we have further revised and streamlined our text and renewed the illustrative material.