نتایج جستجو برای: graphs with exactly two non negative eigenvalues
تعداد نتایج: 10414518 فیلتر نتایج به سال:
toury (1978:200) believes that translation is a kind of activity which inevitably involves at least two languages and two cultural traditions. being polite while asking for something takes place differently in different cultures and languages, therefore various strategies may be applied for making requests and also translation of them in order not to disturb or threaten the face or better to sa...
the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...
In this paper we develop an analog of the notion of the con- jugacy graph of nite groups for the nite semigroups by considering the Green relations of a nite semigroup. More precisely, by de ning the new graphs $Gamma_{L}(S)$, $Gamma_{H}(S)$, $Gamma_{J}(S)$ and $Gamma_{D}(S)$ (we name them the Green graphs) related to the Green relations L R J H and D of a nite semigroup S , we first atte...
Let $Gamma$ be a graph with adjacency eigenvalues $lambda_1leqlambda_2leqldotsleqlambda_n$. Then the energy of $Gamma$, a concept defined in 1978 by Gutman, is defined as $mathcal{E}(G)=sum_{i=1}^n|lambda_i|$. Also the Estrada index of $Gamma$, which is defined in 2000 by Ernesto Estrada, is defined as $EE(Gamma)=sum_{i=1}^ne^{lambda_i}$. In this paper, we compute the eigen...
We construct the edge-localized stationary states of nonlinear Schrödinger equation on a general quantum graph in limit large mass. Compared to previous works, we include arbitrary multi-pulse positive which approach asymptotically composition N solitons, each sitting bounded (pendant, looping, or internal) edge. give sufficient conditions edge lengths under such exist In addition, compute prec...
Exponential random graphs are important to model the structure of real-world complex networks. Here we solve two-star with degree-degree correlations in sparse regime. The constraints average correlation between degrees adjacent nodes (nearest neighbors) and at end-points two-stars (next nearest neighbors). We compute exactly network free energy show that this undergoes a first-order transition...
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