20 citations · 59 across the 17 of their papers we have counts for
17 papers
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…
Some criteria of chaos in non-autonomous discrete systems
Hua Shao, Guanrong Chen, Yuming Shi
This paper establishes some criteria of chaos in non-autonomous discrete systems. Several criteria of strong Li-Yorke chaos are given. Based on these results, some criteria of dist…
Topological conjugacy between induced non-autonomous set-valued systems and subshifts of finite type
Hua Shao, Guanrong Chen, Yuming Shi
This paper establishes topological (equi-)semiconjugacy and (equi-)conjugacy between induced non-autonomous set-valued systems and subshifts of finite type. First, some necessary a…
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…
On distributional chaos in non-autonomous discrete systems
Hua Shao, Yuming Shi, Hao Zhu
This paper studies distributional chaos in non-autonomous discrete systems generated by given sequences of maps in metric spaces. In the case that the metric space is compact, it i…
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…