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math.CO2019
Analytic properties of sextet polynomials of hexagonal systems
Guanru Li, Lily Li Liu, Yi Wang
In this paper we investigate analytic properties of sextet polynomials of hexagonal systems. For the pyrene chains, we show that zeros of the sextet polynomials are real,…
math.CO2019★ 1 cited
Inertia indices and eigenvalue inequalities for Hermitian matrices
Sai-Nan Zheng, Xi Chen, Lily Li Liu +1
We present a characterization of eigenvalue inequalities between two Hermitian matrices by means of inertia indices. As applications, we deal with some classical eigenvalue inequal…