Results 1 to 10 of about 96,628 (243)

Equimatchable Bipartite Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2023
A graph is called equimatchable if all of its maximal matchings have the same size. Lesk et al. [Equi-matchable graphs, Graph Theory and Combinatorics (Academic Press, London, 1984) 239–254] has provided a characterization of equimatchable bipartite ...
Büyükçolak Yasemin   +2 more
doaj   +2 more sources

A review of recommendation system research based on bipartite graph [PDF]

open access: yesMATEC Web of Conferences, 2021
The interaction history between users and items is usually stored and displayed in the form of bipartite graphs. Neural network recommendation based on the user-item bipartite graph has a significant effect on alleviating the long-standing data ...
Wu Ziteng   +3 more
doaj   +1 more source

Antimagic Labeling of Some Biregular Bipartite Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
An antimagic labeling of a graph G = (V, E) is a one-to-one mapping from E to {1, 2, . . ., |E|} such that distinct vertices receive different label sums from the edges incident to them. G is called antimagic if it admits an antimagic labeling.
Deng Kecai, Li Yunfei
doaj   +1 more source

On bipartite divisor graph for character degrees [PDF]

open access: yesInternational Journal of Group Theory, 2017
‎‎The concept of the bipartite divisor graph for integer subsets has been considered in [M‎. ‎A‎. ‎Iranmanesh and C‎. ‎E‎. ‎Praeger‎, ‎Bipartite divisor graphs for integer subsets‎, Graphs Combin.‎,  26 (2010) 95--105.]‎.
Seyed Ali Moosavi
doaj   +1 more source

Teorema Pohon Matriks Untuk Menentukan Banyaknya Pohon Rentangan Graf Bipartisi Komplit (Km,n)

open access: yesFokus, 2016
This research aims to observes panning tree number of complete bipartite graph (Km,n) by matrix-tree theorem.This research was using library research method which the step are:(1)Drawing complete bipartite graph (Km,n) where m= 1,2,3,4,and; (2)Determinin
Novia Rahmawati
doaj   +1 more source

Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model

open access: yesComputers, 2020
This paper describes the modeling of social networks subject to a recommendation. The Cold Start User-Item Model (CSUIM) of a bipartite graph is considered, which simulates bipartite graph growth based on several parameters.
Robert Albert Kłopotek
doaj   +1 more source

On maximal chain subgraphs and covers of bipartite graphs [PDF]

open access: yes, 2016
In this paper, we address three related problems. One is the enumeration of all the maximal edge induced chain subgraphs of a bipartite graph, for which we provide a polynomial delay algorithm.
Calamoneri, Tiziana   +4 more
core   +1 more source

The step Sidorenko property and non-norming edge-transitive graphs [PDF]

open access: yes, 2019
Sidorenko's Conjecture asserts that every bipartite graph H has the Sidorenko property, i.e., a quasirandom graph minimizes the density of H among all graphs with the same edge density.
Král', Daniel   +3 more
core   +2 more sources

Counting Independent Sets and Colorings on Random Regular Bipartite Graphs [PDF]

open access: yes, 2019
We give a fully polynomial-time approximation scheme (FPTAS) to count the number of independent sets on almost every Delta-regular bipartite graph if Delta >= 53.
Liao, Chao   +3 more
core   +2 more sources

Problem of Maximum Matching in Non-Bipartite Graph Using Edmonds’ Cardinality Matching Algorithm and Its Applicationin the Battle of Britain Case

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2019
Matching is a part of graph theory that discusses pair. A matching M is called to be maximum if M has the highest number of  elements. A blossom which is encountered in non-bipartite graph can cause failure in process of finding the maximum matching in ...
Muchammad Abrori, Mohammad Imam Jauhari
doaj   +1 more source

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