3 citations · 10 across the 16 of their papers we have counts for
20 papers
Arithmetic-Geometric spectral radii of Unicyclic graphs
Ruiling Zheng, Xian'an Jin
Let be the degree of the vertex of . The arithmetic-geometric matrix of a graph is a square matrix, where the -entry is equal to $\dis…
Twist monomials of binary delta-matroids
Qi Yan, Xian'an Jin
Recently, we introduced the twist polynomials of delta-matroids and gave a characterization of even normal binary delta-matroids whose twist polynomials have only one term and pose…
On coefficients of the interior and exterior polynomials
Xiaxia Guan, Xian'an Jin
The interior polynomial and the exterior polynomial are generalizations of valuations on and of the Tutte polynomial of graphs to hypergraphs, respec…
A direct and elementary proof of the well-definedness of the interior and exterior polynomials of hypergraphs
Xiaxia Guan, Xian'an Jin, Tianlong Ma
T. Kálmán (A version of Tutte's polynomial for hypergraphs, Adv. Math. 244 (2013) 823-873.) introduced the interior and exterior polynomials which are generalizations of the Tutte…
Twist polynomials of delta-matroids
Qi Yan, Xian'an Jin
Recently, Gross, Mansour and Tucker introduced the partial duality polynomial of a ribbon graph and posed a conjecture that there is no orientable ribbon graph whose partial dualit…
The Ihara-zeta function and the spectrum of the join of two semi-regular bipartite graphs
Xiaotong Li, Xian'an Jin, Qi Yan
In this paper, using matrix techniques, we compute the Ihara-zeta function and the number of spanning trees of the join of two semi-regular bipartite graphs. Furthermore, we show t…