Results 31 to 40 of about 3,533,009 (320)

Equitable Graph of a Graph [PDF]

open access: yesProyecciones (Antofagasta), 2012
A subset D of V is called an equitable dominating set if for every v ∈ V − D there exists a vertex u ∈ D such that uv ∈ E(G) and |d(u) − d(v)| ≤ 1 ,w hered(u) denotes the degree of vertex u and d(v) denotes the degree of vertex v. The minimum cardinality of such a dominating set is denoted by γ e and is called the equitable domination number of G ...
openaire   +3 more sources

Graph Subshifts

open access: yes, 2023
We propose a definition of graph subshifts of finite type that can be seen as extending both the notions of subshifts of finite type from classical symbolic dynamics and finitely presented groups from combinatorial group theory. These are sets of graphs that are defined by forbidding finitely many local patterns. In this paper, we focus on the question
Arrighi, Pablo   +2 more
openaire   +3 more sources

A graph rewriting programming language for graph drawing [PDF]

open access: yes, 1998
This paper describes Grrr, a prototype visual graph drawing tool. Previously there were no visual languages for programming graph drawing algorithms despite the inherently visual nature of the process.
Rodgers, Peter
core   +1 more source

On (a,d)-antimagic labelings of Hn, FLn and mCn

open access: yesIndonesian Journal of Combinatorics, 2020
In this paper, we derive the necessary condition for an (a,d )- antimagic labeling of some new classes of graphs such as Hn, F Ln and mCn. We prove that Hn is (7n +2, 1)-antimagic and mCn is ((mn+3)/2,1)- antimagic.
Ramalakshmi Rajendran, K. M. Kathiresan
doaj   +1 more source

Supereulerian Graphs and the Petersen Graph

open access: yesJournal of Combinatorial Theory, Series B, 1996
A graph \(G\) is called supereulerian if \(G\) has a spanning closed trail. Using a reduction technique, which was developed by the first author [A reduction method to find spanning Eulerian subgraphs, J. Graph Theory 12, No. 1, 29-45 (1988; Zbl 0659.05073)], the authors prove that any 3-edge-connected graph with at most 10 edge cuts of size 3 either ...
Hong-Jian Lai, Paul A. Catlin
openaire   +4 more sources

Streaming Verification of Graph Computations via Graph Structure [PDF]

open access: yes, 2019
We give new algorithms in the annotated data streaming setting - also known as verifiable data stream computation - for certain graph problems. This setting is meant to model outsourced computation, where a space-bounded verifier limited to sequential ...
Chakrabarti, Amit, Ghosh, Prantar
core   +1 more source

Embedding Graphs into Colored Graphs [PDF]

open access: yesTransactions of the American Mathematical Society, 1988
If X X is a graph, κ \kappa a cardinal, then there is a graph Y Y such that if the vertex set of Y Y is κ \kappa -colored, then there exists a monocolored induced copy of X X ; moreover, if X X does not contain a complete graph on
Andras Hajnal, Péter Komjáth
openaire   +2 more sources

String graphs and incomparability graphs [PDF]

open access: yesProceedings of the twenty-eighth annual symposium on Computational geometry, 2012
Given a collection C of curves in the plane, its string graph is defined as the graph with vertex set C, in which two curves in C are adjacent if and only if they intersect. Given a partially ordered set (P,
Fox, Jacob, Pach, János
openaire   +4 more sources

On Rainbow Antimagic Coloring of Joint Product of Graphs

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2023
Let  be a connected graph with vertex set  and edge set . A bijection  from  to the set  is a labeling of graph . The bijection  is called rainbow antimagic vertex labeling if for any two edge  and  in path , where  and .
Brian Juned Septory   +3 more
doaj   +1 more source

Prevention and Control of Fusarium spp., the Causal Agents of Onion (Allium cepa) Basal Rot

open access: yesHorticulturae, 2022
Fusarium basal rot disease (FBR) is considered a serious threat to commercial onion production in Israel and worldwide. Today, coping means applied in Israel against the disease have limited efficiency and include a four-year crop cycle and disinfecting ...
Ofir Degani   +4 more
doaj   +1 more source

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