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math.SP2025
Quasi self-adjoint extensions of a class of formally non-self-adjoint discrete Hamiltonian systems
Guojing Ren, Guixin Xu
This paper is concerned with the characterizations of quasi self-adjoint extensions of a class of formally non-self-adjoint discrete Hamiltonian systems. Some properties of the sol…
math.SP2023
Friedrichs extensions for a class of singular discrete linear Hamiltonian systems
Guojing Ren, Guixin Xu
This paper is concerned with the characterizations of the Friedrichs extension for a class of singular discrete linear Hamiltonian systems. The existence of recessive solutions and…