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One of the most enduring elements in theoretical physics has been group theory. GROUP 24: Physical and Mathematical Aspects of Symmetries provides an important selection of informative articles describing recent advances in the field. The applications of group theory presented in this book deal not only with the traditional fields of physics, but also include such disciplines as chemistry and biology. Awarded the Wigner Medal and the Weyl Prize, respectively, H.J. Lipkin and E. Frenkel begin the volume with their contributions. Plenary session contributions are represented by 18 longer articles, followed by nearly 200 shorter articles. The book also presents coherent states, wavelets, and applications and quantum group theory and integrable systems in two separate sections. As a record of an international meeting devoted to the physical and mathematical aspects of group theory, GROUP 24: Physical and Mathematical Aspects of Symmetries constitutes an essential reference for all researchers interested in various current developments related to the important concept of symmetry.
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H. Dorn, D. Lüst, G. Weight (eds.) Theory of Elementary Particles Following a long-standing tradition, the 1997 Symposium Ahrenshoop brought together a remarkable set of leading scientists in both string theory and lattice theory. The contributions in this volume represent a big part of the most active research in these rapidly advancing fields. Experts from Europe, the USA, Russia, India and Japan discuss their recent results on strings, branes, M-theory, lattice gauge theory and non-perturbative QCD. A major issue is the comparison of non-perturbative results obtained in (supersymmetric) field theories or superstring theory with results from lattice models. An invaluable source of topical information for every scientist working in elementary particle theory!
Sie wurden erst gebraucht, dann geduldet und schließlich kaltgestellt. Vertrauen schenkte die SED ihnen nie; die Stasi bespitzelte sie und behinderte ihre Arbeit. Die Rede ist von bürgerlichen Wissenschaftlern, die – parteilos oder als SED-Mitglieder – in der Ulbricht-Ära bedeutsame Leistungen trotz widriger Umstände erbrachten und unter Honecker mithilfe der Stasi rasch aus ihren Funktionen verdrängt wurden. Die Studie zeigt die beeindruckende Aufbauleistung in den Disziplinen, die die wissenschaftlich-technische Revolution der 2. Hälfte des 20. Jahrhunderts prägten: die Mikroelektronik, die Raumforschung und die Kerntechnik. Sie wird ergänzt um neue Erkenntnisse zum Scheitern des Flugzeugbauprogramms der DDR.
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The fall of the Berlin Wall, and the chain of events leading up to it, arguably constitute one of the most thoroughly documented episodes in recent history. Nonetheless, most accounts have focused predominantly on high-level politics and diplomacy along with the most dramatic and photogenic public displays. End Game, a rich, sweeping account of the autumn of 1989 as it was experienced “on the ground” in the German Democratic Republic, powerfully depicting the desolation and dysfunction that shaped everyday life for so many East Germans in the face of economic disruption and political impotence. Citizens’ frustration mounted until it bubbled over in the form of massive demonstrations and other forms of protest. Following the story up to the first free elections in March 1990, the volume combines abundant detail with sharp analysis and helps us to see this familiar historical moment through new eyes.