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Notation The following notation, definitions and symbols have been used throughout this book. A. POTENTIAL ENERGY FUNCTIONS Hard Sphere Potential Lennard-Jones 12-6 (or LJ12-6) potential or with a core, Chandler–Weeks–Andersen (or CWA) potential or with a core, where �ij is the well depth, �ij the value of r for which u(r) = 0, r0 is the position of the well, i.e., uij(r0) = � �ij and dij is the core diameter Soft-sphere potential where n is an integer. u r rij ij� � � �� �4 n� � � �0, 0r r ij u r r d r d r rij ij ij ij ij ij ij ij� � �� � �� � � �� �� � � � � � � �4 , 12 6 0� � � � � �0, 0r r ij u r r rij ij ij ij ij� � �� � � � �� � � � � �4 , r r 12 6 0� � � � u r r d r dij ij ij ij ij ij� � �� � �� � � �� �� � � � � �4 12 6� � � u r r rij ij ij ij� � �� � � � �� � � �4 12 6� � � u r r d r d ( ) , 0, � � � � xv B. SYMBOLS USED A, Aij a scalar A a vector, Aij a tensor A an operator C. OPERATIONS A Bij ij� � ���A B A Bij ji ij ji A B A B A B A Bx x y y z z• � � � xvi Notation
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