ON A ROTATIONAL INVARIANT IN QUANTUM FOUR-BODY SYSTEMS

THE QUANTUM MECHANICAL FOUR-BODY PROBLEM

PARTIAL DYNAMICAL SYMMETRIES IN QUANTAL MANY-BODY SYSTEMS

SOLUTION OF THE THEORY FOR THE QUANTUM-MECHANICAL FOUR-BODY PROBLEM.

DYNAMICAL SYMMETRY APPROACH TO COLLECTIVE MOTIONS IN MANY-BODY SYSTEMS

TRANSFER MATRICES IN QUANTUM MANY-BODY SYSTEMS

On the ground state in rotationally invariant quantum systems