The quantum many body problem has been at the heart of much of theoretical and experimental physics over the past few decades ...

The Romanian Mathematical Society (R.M.S.) is one of the oldest scientific societies in Romania and one of the largest among similar organisations in Europe. At present, R.M.S. has 51 subsidiaries ...

In the Hilbert space L A 2 ( I;E )( I:=[ a,b ),−∞ 0 ) , the maximal dissipative singular matrix-valued Sturm–Liouville operators that the extensions of a minimal symmetric operator with maximal ...

This course introduces the quantum mechanical concept of angular momentum operator and its relationship with rotation operator. It then presents the angular momentum operators, their eigenvalues and ...