مرور Volume 3, Issue 3 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 4 از 4
-
On the eigenvalues of firefly graphs
(University of Isfahan, 2014-09-01)The sharp upper bounds and the sharp lower bounds of the largest eigenvalues $lambda_1$, the least eigenvalue $lambda_n$, the second largest eigenvalue $lambda_2$, the spread and the separator among all firefly ...
-
General Randic matrix and general Randic energy
(University of Isfahan, 2014-09-01)Let $G$ be a simple graph with vertex set $V(G) = {v_1, v_2,ldots, v_n}$ and $d_i$ the degree of its vertex $v_i$, $i = 1, 2, dots, n$. Inspired by the Randic matrix and the general Randic index of a graph, ...
-
On association schemes with commutative thin thin residue
(University of Isfahan, 2014-09-01)The main result of this paper gives a characterization of association schemes having commutative thin thin residue. This gives a generalization of Ito's Theorem on finite groups for association schemes.
-
A note on the zero divisor graph of a lattice
(University of Isfahan, 2014-09-01)Let $L$ be a lattice with the least element $0$. An element $xin L$ is a zero divisor if $xwedge y=0$ for some $yin L^*=Lsetminus left{0right}$. The set of all zero divisors is denoted by $Z(L)$. We associate a ...
