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The stabilizing index and cyclic index of the coalescence and Cartesian product of uniform hypergraphs
Journal of Combinatorial Theory Series A ( IF 1.1 ) Pub Date : 2021-09-01 , DOI: 10.1016/j.jcta.2021.105537
Yi-Zheng Fan 1 , Meng-Yu Tian 2 , Min Li 2
Affiliation  

Let G be connected uniform hypergraph and let A(G) be the adjacency tensor of G. The stabilizing index of G is exactly the number of eigenvectors of A(G) associated with the spectral radius, and the cyclic index of G is exactly the number of eigenvalues of A(G) with modulus equal to the spectral radius. Let G1G2 and G1G2 be the coalescence and Cartesian product of connected m-uniform hypergraphs G1 and G2 respectively. In this paper, we give explicit formulas for the stabilizing indices and cyclic indices of G1G2 and G1G2 in terms of those of G1 and G2 or the invariant divisors of their incidence matrices over Zm, respectively.



中文翻译:

均匀超图的聚结和笛卡尔积的稳定指数和循环指数

G连接均匀超图并令一种(G)G的邻接张量。G的稳定指数正好是一种(G)与谱半径相关联,而G的循环索引正是一种(G)模数等于谱半径。让G1G2G1G2是连接的m -均匀超图的合并和笛卡尔积G1G2分别。在本文中,我们给出了稳定指数和循环指数的明确公式G1G2G1G2 就那些 G1G2 或者它们的关联矩阵的不变因数 Z, 分别。

更新日期:2021-09-01
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