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This book demonstrates the importance of symmetry in determining the properties of solids and the power of using group theory and tensor algebra to elucidate these properties. It provides the fundamentals necessary for the reader to understand how to utilize these techniques in many different applications without becoming lost in a heavy formal treatment of the subject matter. The book begins by discussing the concepts of symmetry relevant to crystal structures. This is followed by a summary of the basics of group theory and how it applies to quantum mechanics. Next is a discussion of the description of the macroscopic properties of crystals by tensors and how symmetry determines the form of these tensors. The basic concepts covered in these early chapters are then applied to a series of different examples including crystal field theory treatment of point defects in solids, molecular orbitals, two-photon processes, the optical properties of solids, the nonlinear optical properties of solids, lattice vibrations, the Jahn-Teller effect, and the effects of translational symmetry on electronic energy bands in solids.. Emphasis is placed on showing how group theory and tensor algebra can provide important information about the properties of a system without resorting to first principal quantum mechanical calculations. The book also features a comprehensive set of relevant tables, including crystal symmetries, point group character tables, matter tensors of different rank, and other tensor properties. Key Features: •Serves as a textbook or reference book for solid-state physics, solid-state chemistry, and materials science and engineering •Shows how the physical properties of solids are determined by their symmetry •Demonstrates the applications of group theory •Utilizes the concept of matter tensors •Includes an extensive set of reference tables and end of chapter problems.

Crystallography, Mathematical --- Crystals --- Group theory --- Chemical & Materials Engineering --- Physics --- Physical Sciences & Mathematics --- Engineering & Applied Sciences --- Atomic Physics --- Materials Science --- Mathematical models --- Crystallography, Mathematical. --- Symmetry (Physics) --- Group theory. --- Solid state physics. --- Mathematical physics. --- Physical mathematics --- Groups, Theory of --- Substitutions (Mathematics) --- Invariance principles (Physics) --- Symmetry (Chemistry) --- Crystallography --- Crystallometry --- Mathematical crystallography --- Mathematics --- Physics. --- Physical chemistry. --- Condensed matter. --- Optical materials. --- Electronic materials. --- Condensed Matter Physics. --- Solid State Physics. --- Optical and Electronic Materials. --- Physical Chemistry. --- Solids --- Algebra --- Conservation laws (Physics) --- Lattice theory --- Chemistry, Physical organic. --- Chemistry, Physical organic --- Chemistry, Organic --- Chemistry, Physical and theoretical --- Optics --- Materials --- Chemistry, Theoretical --- Physical chemistry --- Theoretical chemistry --- Chemistry --- Electronic materials --- Condensed materials --- Condensed media --- Condensed phase --- Materials, Condensed --- Media, Condensed --- Phase, Condensed --- Liquids --- Matter

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The African diaspora-a direct result of the transatlantic slave trade and Western colonialism-has generated a wide array of artistic achievements, from blues and reggae to the paintings of the pioneering American artist Henry Ossawa Tanner and the music videos of Solange. This study concentrates on how these works, often created during times of major social upheaval and transformation, use Black culture both as a subject and as context. From musings on "the souls of black folk" in late-nineteenth-century art to questions of racial and cultural identities in performance, media, and computer-assisted arts in the twenty-first century, this book examines the philosophical and social forces that have shaped Black presence in modern and contemporary visual culture. Renowned art historian Richard J. Powell presents Black art drawn from across the African diaspora, with examples from the Americas, the Caribbean, and Europe. Black Art features artworks executed in a broad range of media, including film, photography, performance art, conceptual art, advertising, and sculpture. Now updated and expanded, this new edition helps to better understand how the first two decades of the twenty-first century have been a transformative moment in which previous assumptions about race and identity have been irrevocably altered, with art providing a useful lens through which to think about these compelling issues. La diaspora africaine, conséquence directe de la traite transatlantique des esclaves et du colonialisme occidental, a donné naissance à un large ensemble de réalisations artistiques, du blues et du reggae aux peintures de l'artiste américain pionnier Henry Ossawa Tanner et aux vidéos musicales de Solange. Cette étude se concentre sur la manière dont ces œuvres, souvent créées pendant des périodes de bouleversements et de transformations sociales majeures, utilisent la culture noire à la fois comme sujet et comme contexte. Des réflexions sur "l'âme des Noirs" dans l'art de la fin du XIXe siècle aux questions d'identités raciales et culturelles dans la performance, les médias et les arts assistés par ordinateur au XXIe siècle, ce livre étudie les forces philosophiques et sociales qui ont façonné la présence des Noirs dans la culture visuelle moderne et contemporaine. Richard J. Powell, historien de l'art renommé, présente l'art noir à travers la diaspora africaine, avec des exemples provenant des Amériques, des Caraïbes et d'Europe. Black Art présente des œuvres exécutées dans un large panel de techniques, dont le cinéma, la photographie, l'art de la performance, l'art conceptuel, la publicité et la sculpture. Désormais mise à jour et augmentée, cette nouvelle édition permet de mieux comprendre comment les deux premières décennies du XXIe siècle ont été un moment de transformation au cours duquel les hypothèses précédentes sur la race et l'identité ont été irrévocablement modifiées, l'art fournissant une perspective utile pour réfléchir à ces questions fascinantes.

Arts, Black --- Arts, Modern --- Popular culture --- History --- Art noir --- Art noir américain --- Art, Black --- African American art --- Race in art --- African Americans --- Black people --- African American artists --- Artists, Black --- Art, Modern --- Art, Black. --- African American art. --- Art noir. --- Art noir américain. --- Race dans l'art --- Noirs américains --- Personnes noires --- Artistes noirs américains --- Artistes noirs --- ART / General. --- Art and Design. --- The arts: general issues. --- History of art. --- History and criticism. --- Social aspects --- Race identity --- In art --- Influence. --- African influences. --- Histoire et critique. --- Aspect social --- Identité ethnique --- Dans l'art --- Social aspects. --- Race identity. --- 1900-2099 --- 1900-2021

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