2 papers
math.GN2018
Connected door spaces and topological solutions of equations
Jianfeng Wu, Chunli Wang, Dong Zhang
The connected door space is an enigmatic topological space in which every proper nonempty subset is either open or closed, but not both. This paper provides an elementary proof of…
math.SP2016
Nodal Domains of Eigenvectors for -Laplacian on Graphs
K. C. Chang, Sihong Shao, Dong Zhang
The eigenvectors for graph -Laplacian possess some sort of localization property: On one hand, any nodal domain of an eigenvector is again an eigenvector with the same eigenvalu…