01340nam a2200217Ia 4500 CTU_159918 210402s9999 xx 000 0 und d 165 530.15564 N458 Nesbet, R. K. Variational principles and methods in theoretical physics and chemistry Robert K. Nesbet New York Cambridge University Press 2003 This book consolidates and brings up to date the variational theory and methods currently used in many branches of theoretical physics and chemistry. The text surveys essential ideas and methods, concentrating on theory as used in applications rather than on fine points of rigorous mathematics. Essential concepts are developed in a common notation and from a uniform critical point of view. The theory underlying practical computational methods is developed. Examples of important applications are reviewed in sufficient detail to provide the reader with a critical understanding of context and methodology Calculus of variations,Mathematical physics,Chemistry, Physical and theoretical,Vật lý toán,Hóa học, vật lý và lý thuyết Mathematics,Toán Nguyên Trung tâm Học liệu Trường Đại học Cần Thơ