Title: Collective Rotational Motion in Non-Degenerate Nuclear System. I
Abstract: Following a recent paper of D. H. E. Gross and one of the present authors (M. Y.), the idea of using sum rules expressing different single-particle transition operators in terms of higher powers of other operators is applied for the description of nuclear rotational motion in even deformed nuclei. Starting from the basic picture of Bohr's rotational model, a general microscopic method is developed with the help of these generalized sum rules. The validity of such picture should be justified by the dynamical restrictions under which rotational motion may appear. Moment of inertia, quadrupole moments, transition probabilities and occupation probabilities of the single-particle states are determined within the framework of the theory. The concept of the intrinsic state is clarified.