Volume 4, Issue 3
مرور بر اساس
ارسال های اخیر
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Nonexistence of two circulant weighing matrices of weight 81$^{1}$
(University of Isfahan, 2015-09-01)In this paper, we prove the nonexistence of two weighing matrices of weight 81, namely $CW(88,81)$ and $CW(99,81)$. We will apply two very different methods to do so; for the case of $CW(88,81)$, we will ...
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On Laplacian-energy-like invariant and incidence energy
(University of Isfahan, 2015-09-01)For a simple connected graph $G$ with $n$-vertices having Laplacian eigenvalues $mu_1$, $mu_2$, $dots$, $mu_{n-1}$, $mu_n=0$, and signless Laplacian eigenvalues $q_1, q_2,dots, q_n$, the Laplacian-energy-like ...
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The hyper edge-Wiener index of corona product of graphs
(University of Isfahan, 2015-09-01)Let $G$ be a simple connected graph. The edge-Wiener index $W_e(G)$ is the sum of all distances between edges in $G$, whereas the hyper edge-Wiener index $WW_e(G)$ is defined as $W{W_e}(G) = {frac{1}{2}}{W_e}(G) ...
