1 citations · 1 across the 1 of their papers we have counts for
3 papers
math.CO2020★ 1 cited
Generalized spectral characterizations of almost controllable graphs
Wei Wang, Fenjin Liu
Characterizing graphs by their spectra is an important topic in spectral graph theory, which has attracted a lot of attention of researchers in recent years. It is generally very h…
math.CO2019
Unlocking the walk matrix of a graph
Fenjin Liu, Johannes Siemons
Let be a graph with vertex set and adjacency matrix For a subset of let $\e=(x_{1},\,\dots,\,x_{n})^{\tt T}$ be the characteristic vector…
math.CO2018
New families of graphs determined by their generalized spectrum
Fenjin Liu, Johannes Siemons, Wei Wang
We construct infinite families of graphs that are determined by their generalized spectrum. This construction is based on new formulae for the determinant of the walk matrix of a g…