... function PRINCIPLES OF QUANTUM MECHANICSas Applied to Chemistry and Chemical PhysicsThis text presents a rigorous mathematical account of the principles of quantum mechanics, in particular as applied ... Uni-versity of Amsterdam, and as a Research Fellow at Yale's Chemistry Depart-ment, he joined the faculty of the University of Pennsylvania, rising to the rank of Professor of Chemistry.In ... shape of the composite wave changes with time. An example of dispersive wave motionis a beam of light of mixed frequencies traveling in a dense medium such asglass. Because the phase velocity of...