Webthe spectrum of Corona graphs generated by a regular graph and a star graph. Further we determine formula of Laplacian and signless Laplacian eigenvalues of Corona graphs … Web23 Sasmita Barik, Bhaba K. Sarma, and Sukanta Pati, The spectrum of the corona of two graphs, SIAM Journal on Discrete Mathematics, 21(1):47-56, (2007). 24 Sasmita Barik, M. Neumann, and Sukanta Pati, On nonsingular trees and a reciprocal eigenvalue property, Linear and Multilinear Algebra, 54(6):453-465, (2006).
The distance spectrum of corona and cluster of two graphs
Web[13] of two graphs, which is a variant of the corona operation, were completely computed in [5,13,19]. Another variant of the corona operation, the neighbourhood corona, was introduced in [10] recently. In [10], the A-spectrum of the neighbourhood corona of an arbitrary graph and a regular graph was given in terms of that of the two factor graphs. WebCorona viruses have caused two epidemics in the last two decades and now a severe pandemic that has already claimed hundreds of thousands of lives worldwide. As the pandemic is still ongoing, it is impossible to predict its extent. ... to understand the severity of disease progression and to identify broad spectrum agents. The scientists also ... bantuan gereja
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WebFeb 26, 2024 · A (signed) graph is called Laplacian integral if all eigenvalues of its Laplacian matrix are integers. In this paper, we determine all connected Laplacian integral signed graphs of maximum degree 3; among these signed graphs,there are two classes of Laplacian integral signed graphs, one contains 4 infinite families of signed graphs and … WebThe derived graph of a simple graph G, denoted by [G] †, is the graph having the same vertex set as G, in which two vertices are adjacent if and only if their distance in G is two. The … WebJun 10, 2024 · In this paper we obtain the distance spectrum of the corona of a distance regular graph with a regular graph and that of the cluster of a connected distance regular … bantuan golongan belia