Demkov, Yu. N. Variational Principles in Collision Theory (Variatsionnye printsipy v teorii stolknovenii), 1958. In Russian

Демков, Ю. Н. Вариационные принципы в теории столкновений.
Москва: Физматгиз, 1958.
168 стр.; обычный формат.
Твердый переплет.
Тираж: 6000 экз.
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Demkov, Yu. N. Variational Principles in Collision Theory (Variatsionnye printsipy v teorii stolknovenii).
Moscow: Fizmatgiz, 1958.
168 p.; standard format.
Hardcover.
Print run: 6,000 copies.

A specialized monograph by Soviet physicist Yuri Demkov on the application of variational principles to collision theory, a key area in quantum mechanics and mathematical physics. Published in 1958 by the leading Soviet scientific publisher Fizmatgiz, this work addresses the formulation of variational principles, their interrelationships, and their application to scattering problems. The book also covers related topics such as the symmetry of functionals, the principle of detailed balance, and the virial theorem for scattering. This academic volume is a representative example of advanced Soviet scientific publishing during the post-Stalin era.