共 22 条
[1]
Azizov T. Y.(2001)An indefinite approach to the reduction of a nonnegative Hamiltonian operator function to a block diagonal form Funct. Anal. Appl+. 35 220-221
[2]
Kiriakidi V. K.(2001)Invertibility of nonnegatively Hamiltonian operators in a Hilbert space Diff. Equat+. 37 880-882
[3]
Kurina G. A.(2008)Structure of the spectrum of infinite-dimensional Hamiltonian operators Science in China Series A:Mathematics 51 915-924
[4]
Kurina G. A.(2012)Spectral properties and numerical range of off-diagonal infinite-dimensional Hamiltonian operators Linear.Multilinear. A. 60 613-619
[5]
Huang A. J.(1998)Spectral decomposition of some nonselfadjoint block operator matrices J. Operat. Theor. 39 339-359
[6]
Fan X.(2001)A new concept for block operator matrices: the quadratic numerical range Linear. Algebra. Appl. 330 89-112
[7]
Wu D.(2009)Spectral inclusion for unbounded block operator matrices J. Funct. Anal. 256 3806-3829
[8]
Chen A.(2012)Approximation of the quadratic numerical range of block operator matrices Integr. Equat. Oper. Th. 74 151-162
[9]
Langer H.(2015)Spectral inclusion properties of unbounded Hamiltonian operators Chin. Ann.Math. 36B 201-212
[10]
Tretter C.(1970)Perturbation of closed operators and their adjoints Comment. Math. Helv. 45 524-529