Results 51 to 60 of about 405,795 (217)

Simulations for the Susceptible-Exposed-Infected-Recovered (SEIR) Model in the Forecast of Epidemic Outbreak

open access: yesJournal of Engineering Technology and Applied Physics
Mathematical modelling based on the compartmental Susceptible – Exposed – Infected - Recovered (SEIR) model is proposed in this paper to study the pandemic outbreak.
Mei Feng Liu, Boo Hui Ling
doaj   +1 more source

Completely separable graphs

open access: yesDiscrete Applied Mathematics, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hammer, Peter L., Maffray, Frédéric
openaire   +2 more sources

Decomposing the Complete Graph Into Hamiltonian Paths (Cycles) and 3-Stars

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Let H be a graph. A decomposition of H is a set of edge-disjoint subgraphs of H whose union is H. A Hamiltonian path (respectively, cycle) of H is a path (respectively, cycle) that contains every vertex of H exactly once.
Lee Hung-Chih, Chen Zhen-Chun
doaj   +1 more source

A note on zero-divisor graph of amalgamated duplication of a ring along an ideal

open access: yesAKCE International Journal of Graphs and Combinatorics, 2017
Let be a commutative ring and be a non-zero ideal of . Let be the subring of consisting of the elements for and . In this paper we characterize all isomorphism classes of finite commutative rings with identity and ideal such that is planar.
A. Mallika, R. Kala
doaj   +1 more source

SPN completable graphs

open access: yesLinear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shaked-Monderer, Naomi   +3 more
openaire   +3 more sources

Effects on Seidel energy of two special types of graphs by perturbing edges

open access: yesKuwait Journal of Science
Let G be a simple undirected graph, and let S(G) be its Seidel matrix. The Seidel energy of G is defined as ES(G)=∑i=1n|λS(G)|, where λS(G),λS(G),…,λS(G) are Seidel eigenvalues of G.
doaj   +1 more source

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