23 citations · 23 across the 6 of their papers we have counts for
6 papers
On the stability of self-adjointness of linear relations
Yan Liu
This paper focuses on the stability of self-adjointness of linear relations under perturbations in Hilbert spaces. It is shown that a self-adjoint relation is still self-adjoint un…
Invariance of deficiency indices of Hermitian subspaces under relatively bounded perturbations
Yan Liu, Yuming Shi
This paper is concerned with the stability of deficiency indices of Hermitian subspaces (i.e., linear relations) under relatively bounded perturbations in Hilbert spaces. Several r…
Trace class perturbation of closed linear relations
Yuming Shi, Yan Liu
This paper studies trace class perturbation of closed linear relations in Hilbert spaces. The concept of trace class perturbation of closed relations is introduced by orthogonal pr…
Regular approximations of spectra of singular discrete linear Hamiltonian systems with one singular endpoint?
Yan Liu, Yuming Shi
This paper is concerned with regular approximations of spectra of singular discrete linear Hamiltonian systems with one singular endpoint. For any given self-adjoint subspace exten…
Compact Composition Operators on the Bloch Space in Bounded Symmetric Domains
Zehua Zhou, Yan Liu
Let be a bounded symmetric domain except the two exceptional domains of and a holomorphic self-map of This paper gives a sufficient and necessary conditio…
The Essential Norm of Composition Operator between Generalized Bloch Spaces in Polydiscs and its Applications
Zehua Zhou, Yan Liu
Let be the unit polydisc of and a holomorphic self-map of By , and ${\cal B}^p_{0*}(…