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"Heilbronner and Dunitz are both professors of chemistry. Although their book is aimed primarily at scientists, the authors hope it will also appeal to scientists in general, and, indeed, to laymen with an interest in the development of science from its cloudy beginnings to its pervasive influence in modern society. Rather than going into the formal mathematical background, the authors describe how symmetry concepts inherited from the early Greek philosophers began to enter scientific thought. In chemistry, the main impact has been on the development of the molecular hypothesis. Once it became recognized that molecules were just more or less stable arrangements of atoms in space, symmetry concepts began to play an ever increasing role in chemical science - not only in specialist areas such as spectroscopy, crystallography, and theoretical chemistry, but also in the everyday activities of the practical synthetic chemist. Today, chemistry teaching has adapted itself to some extent to this situation. Chemistry students are now often introduced to symmetry concepts at the very beginning of their studies; older chemists may be at a disadvantage in this respect. If they feel that their encounter with symmetry concepts during their student days was inadequate, the present book may help to fill the deficit."--BOOK JACKET.

Chemistry --- Symmetry (Physics) --- Chimie --- Symétrie (Physique) --- History --- Histoire --- 548.12 --- #WSCH:AAS2 --- #WSCH:MACV --- Theory of symmetry. Theory of original forms in general --- History. --- Symmetry (Physics). --- 548.12 Theory of symmetry. Theory of original forms in general --- fysicochemie --- Stereochemistry --- Symétrie (Physique) --- Symmetry. --- Molecular theory. --- Symétrie. --- Symétrie (physique) --- Symétrie moléculaire --- Théorie moléculaire. --- Histoire. --- Symétrie. --- Symétrie (physique) --- Symétrie moléculaire --- Théorie moléculaire.

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In many branches of physics, mathematics, and engineering, solving a problem means solving a set of ordinary or partial differential equations. Nearly all methods of constructing closed form solutions rely on symmetries. The emphasis in this text is on how to find and use the symmetries; this is supported by many examples and more than 100 exercises. This book will form an introduction accessible to beginning graduate students in physics, applied mathematics, and engineering. Advanced graduate students and researchers in these disciplines will find the book a valuable reference.

Differential equations --- Symmetry --- Equations différentielles --- Symétrie --- Numerical solutions --- Solutions numériques --- Symmetry. --- Numerical solutions. --- Equations différentielles --- Symétrie --- Solutions numériques --- Équations aux dérivées partielles --- Équations aux dérivées partielles --- Differential equations - Numerical solutions. --- Equations differentielles ordinaires

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Richard Feynman fut un professeur prodigieux, véritable homme de scène sachant allier le rire et la rigueur. Son "Cours de Physique" est devenu le manuel en usage dans le monde entier. Les "Leçons sur la Physique" sont constituées à partir des chapitres les plus accessibles de son "Cours". Elles présentent aux physiciens professionnels ou amateurs, comme aux simplex curieux, les idées essentielles de la physique contemporaine, les idées de conservation, de symétrie, de relativité de l'espace et du temps, de même que les principes quantiques qui régissent les processus atomiques.

Symmetry (Physics) --- Space and time. --- Quantum theory. --- Relativity (Physics) --- Special relativity (Physics) --- Symétrie (physique) --- Espace-temps. --- Théorie quantique. --- Relativité (physique) --- Relativité restreinte (physique) --- Symétrie (physique). --- Théorie quantique. --- Relativité (physique). --- Physique. --- Moment spaces --- Quantum theory --- Physics

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Theoretical spectroscopy. Spectroscopic techniques --- fysicochemie --- Vibrational spectra. --- Electron spectroscopy. --- Molecular orbitals. --- Symmetry (Physics) --- Spectre de vibration --- Spectroscopie électronique --- Orbites moléculaires --- Symétrie (Physique) --- Molecular orbitals --- Vibrational spectra --- Electron spectroscopy --- Spectroscopie électronique --- Orbites moléculaires --- Symétrie (Physique) --- Excited electronic state --- Symmetry --- Vibrational spectroscopy

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Group theory --- Representations of groups --- Symmetry groups --- Groups, Symmetry --- Symmetric groups --- Crystallography, Mathematical --- Quantum theory --- Group representation (Mathematics) --- Groups, Representation theory of --- Representations of groups. --- Symmetry groups. --- Groupes, Théorie des --- Groupes de symétrie --- Groupes, Théorie des. --- Groupes de symétrie. --- Groupes de symétrie --- Groupes, Théorie des --- Représentations de groupes