Results 1 to 10 of about 2,650,610 (297)

Domination number of middle graphs [PDF]

open access: yesTransactions on Combinatorics, 2023
In this paper, we study the domination number of middle graphs. Indeed, we obtain tight bounds for this number in terms of the order of the graph G. We also compute the domination number of some families of graphs such as star graphs, double start graphs,
Farshad Kazemnejad   +3 more
doaj   +4 more sources

Total domination number of middle graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2022
A total dominating set of a graph G with no isolated vertices is a subset S of the vertex set such that every vertex of G is adjacent to a vertex in S. The total domination number of G is the minimum cardinality of a total dominating set.
Farshad Kazemnejad   +3 more
doaj   +4 more sources

Dual-graph attention autoencoder for spatial domain identification in ischemic stroke [PDF]

open access: yesFrontiers in Neuroscience
IntroductionSpatial transcriptomics enables molecular mapping of ischemic stroke tissue, but spatial domain identification is challenging when injury disrupts normal tissue geometry.
Yuan-Yuan Chen   +5 more
doaj   +2 more sources

Fair Fuzzy Matching in Middle Fuzzy Graph [PDF]

open access: yesRatio Mathematica, 2022
A fuzzy matching is a set of edges in which an edge does not incident on a vertex with same membership value. If every vertex of fuzzy graph is M-Plunged then the fuzzy matching is called as fair fuzzy matching.
S. Yahya Mohamed, S Suganthi
doaj   +2 more sources

On the D-differential of a graph

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
Let [Formula: see text] be a graph of order n(G). For a subset S of V(G), the boundary of S is defined as [Formula: see text] where N(S) is the open neighborhood of S.
Kijung Kim
doaj   +1 more source

On harmonious chromatic number of triple star graph [PDF]

open access: yesJournal of Hyperstructures, 2016
A Harmonious coloring of a graph G is a proper vertex coloring of G, in which every pair of colors appears on at most one pair of adjacent vertices and the harmonious chromatic number of graph G is the minimum number of colors needed for the harmonious ...
Akhlak Mansuri
doaj   +1 more source

AVD proper edge-coloring of some families of graphs

open access: yesInternational Journal of Mathematics for Industry, 2021
Adjacent vertex-distinguishing proper edge-coloring is the minimum number of colors required for the proper edge-coloring of [Formula: see text] in which no two adjacent vertices are incident to edges colored with the same set of colors.
J. Naveen
doaj   +1 more source

Survey on Large Scale Enterprise-level Knowledge Graph Practices [PDF]

open access: yesJisuanji gongcheng, 2020
In recent years,knowledge graph and its related technologies have developed rapidly and have been widely used in various cognitive intelligence scenarios in industry.This paper gives a brief description of researches in knowledge graph,and on this basis ...
WANG Haofen, DING Jun, HU Fanghuai, WANG Xin
doaj   +1 more source

On the r-dynamic coloring of some fan graph families

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper, we determine the r-dynamic chromatic number of the fan graph Fm,n and determine sharp bounds of this graph invariant for four related families of graphs: The middle graph M(Fm,n), the total graph T (Fm,n), the central graph C(Fm,n) and the
Falcón Raúl M.   +3 more
doaj   +1 more source

On Valuation of Edge Irregularity Strength of Certain Graphical Families

open access: yesJournal of Mathematics, 2022
This article comprises of exact valuation of a graph parameter, known as the edge irregularity strength EIS, symbolized as eisG, of various graphical families such as middle graph of path graph, middle graph of cycle graph, snake graph (string 2 ...
Zhiqiang Zhang   +4 more
doaj   +1 more source

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