Lapidus - Böcker
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2 produkter
2 produkter
1 801 kr
Skickas inom 5-8 vardagar
The aim of this book is to make accessible to mathematicians, physicists and other scientists interested in qunatum theory, the beautiful but mathematically difficult subjects of the Feynman integral and Feynman's operational calculus. Some advantages of the approaches to the Feynman integral which are treated in detail in this book are the following: the existence of the Feynman integral is established for very general potentials in all four cases; under more restrictive but still broad conditions, three of these Feynman integrals agree with one another and with the unitary group from the usual approach to quantum dynamics; these same three Feynman integrals possess pleasant stability properties. Much of the material covered here was previously available only in the research literature, and the book also contains some new results. The background material in mathematics and physics that motivates the study of the Feynman integral and Feynman's operational calculus is discussed, and detailed proofs are provided for the central results.
Del 6 - Cambridge Russian Paperbacks
From Union to Commonwealth
Nationalism and Separatism in the Soviet Republics
Häftad, Engelska, 1992
428 kr
Skickas inom 7-10 vardagar
The collapse of the Soviet Union and the emergence of fifteen independent states on its former territory is one of the most momentous developments of the twentieth century. In this volume, five leading international scholars team up to examine the forces that lay behind the rise of national movements which challenged, then destroyed, the stability and territorial integrity of the former Soviet state offering unique insights into the links between political structure and nationalism. Presenting a broad and timely analysis of the national dimension of politics after perestroika, this book is essential reading for all those seeking to understand the complexities underlying the demise of the Soviet state, as well as the emergence of new states actively engaged in defining their national identities at home and abroad.