On Symplectic Self-Adjointness of Hamiltonian Operator Matrices

Autor: Xiaohong Wu, Junjie Huang, Eerdun Buhe
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Symmetry, Vol 15, Iss 12, p 2163 (2023)
Druh dokumentu: article
ISSN: 2073-8994
DOI: 10.3390/sym15122163
Popis: The symmetry of the spectrum and the completeness of the eigenfunction system of the Hamiltonian operator matrix have important applications in the symplectic Fourier expansion method in elasticity. However, the symplectic self-adjointness of Hamiltonian operator matrices is important to the characterization of the symmetry of the point spectrum. Therefore, in this paper, the symplectic self-adjointness of infinite dimensional Hamiltonian operators is studied by using the spectral method of unbounded block operator matrices, and some sufficient conditions of the symplectic self-adjointness of infinite dimensional Hamiltonian operators are obtained. In addition, the necessary and sufficient conditions are also investigated for some special infinite dimensional Hamiltonian operators.
Databáze: Directory of Open Access Journals