Self-adjoint extensions of phase and time operators (4 pages)

Constructing quantum observables and self-adjoint extensions of symmetric operators. III. Self-adjoint boundary conditions

Constructing quantum observables and self-adjoint extensions of symmetric operators. I

Applications of Self-Adjoint Extensions in Quantum Physics

Quantum junctions and the self-adjoint extensions theory

Schrödinger self-adjoint extension and quantum field theory

Self-adjoint phase operator