Two graphs are called singularly cospectral if they have the same nonzero singular value with the same multiplicity.Singularly cospectral is weaker than cospectral but stronger than equienergetic.A new construction of singularly cospectral graph is derived using the operation of t-join(shadow)corona of a graph and the technique of block matrix which has great significance for studying the structural and spectral properties of equienergetic graphs.
NETL
NSTL
万方数据
