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math.CO2019★ 1 cited
Characterization of graphs with some normalized Laplacian eigenvalue of multiplicity n-3
Fenglei Tian, Dein Wong
Graphs with few distinct eigenvalues have been investigated extensively. In this paper, we focus on another relevant topic: characterizing graphs with some eigenvalue of large mult…
math.CO2017
Automorphism group of the subspace inclusion graph of a vector space
Dein Wong, Xinlei Wang, Fenglei Tian
In a recent paper [Comm. Algebra, 44(2016) 4724-4731], Das introduced the graph , called subspace inclusion graph on a finite dimensional vector space $\m…
math.CO2017
Automorphisms of the subspace sum graphs on a vector space
Fenglei Tian, Dein Wong
The subspace sum graph on a finite dimensional vector space was introduced by Das [Subspace Sum Graph of a Vector Space, arXiv:1702.08245], r…