Results 1 to 10 of about 2,686,069 (331)

On the Boolean dimension of a graph and other related parameters [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
We present the Boolean dimension of a graph, we relate it with the notions of inner, geometric and symplectic dimensions, and with the rank and minrank of a graph.
Maurice Pouzet   +2 more
doaj   +1 more source

Codes from $m$-ary $n$-cubes $Q^m_n$: a survey [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2023
We collect together some known results concerning the codes from adjacency matrices of the graph with vertices the nodes of the $m$-ary $n$-cube $Q^m_n$ and with adjacency defined by the Lee metric, and include some new results.
Jennifer Key, Bernardo Rodrigues
doaj   +1 more source

Calculation of cams with concave profile in the MATHCAD system [PDF]

open access: yesОмский научный вестник, 2022
The article shows the features of the cam with concave profile, the method of kinematic calculation of the pusher when it moves along a concave and rounded surface.
V. V. Ryndin   +3 more
doaj   +1 more source

Kinematic calculation of convex cam profile using MATHCAD program [PDF]

open access: yesОмский научный вестник, 2021
The article shows the features of the construction of cams with a convex profile, the method of kinematic calculation of the pusher when it moves along a convex and rounded surface is given.
T. A. Polyakova   +3 more
doaj   +1 more source

Strong Perfect Cobondage Number of Standard Graphs

open access: yesRatio Mathematica, 2023
Let G be a simple graph. A subset S Í V(G) is called a strong (weak) perfect dominating set of G if |Ns(u) ∩ S| = 1(|Nw(u) ∩ S| = 1) for every u ∊V(G) - S where Ns(u) = {v ∊ V(G) / uv  deg v ≥ deg u} (Nw(u) = {v ∊V(G) / uv  deg v ≤ deg u}.
T. S Govindalakshmi, N Meena
doaj   +1 more source

A method for eternally dominating strong grids [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
In the eternal domination game, an attacker attacks a vertex at each turn and a team of guards must move a guard to the attacked vertex to defend it. The guards may only move to adjacent vertices and no more than one guard may occupy a vertex.
Alizée Gagnon   +7 more
doaj   +1 more source

Influence of the tie-break rule on the end-vertex problem [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
End-vertices of a given graph search may have some nice properties, as for example it is well known that the last vertex of Lexicographic Breadth First Search (LBFS) in a chordal graph is simplicial, see Rose, Tarjan and Lueker 1976.
Pierre Charbit   +2 more
doaj   +1 more source

Transactions on Graph Data and Knowledge [PDF]

open access: yesTransactions on Graph Data and Knowledge, 2023
Transactions on Graph Data and Knowledge (TGDK) is a new journal publishing peer-reviewed research on graph-based abstractions for data and knowledge, as well as the techniques, theories, applications and results that arise in this setting.
Hogan, Aidan   +3 more
doaj   +1 more source

On interval number in cycle convexity [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
Recently, Araujo et al. [Manuscript in preparation, 2017] introduced the notion of Cycle Convexity of graphs. In their seminal work, they studied the graph convexity parameter called hull number for this new graph convexity they proposed, and they ...
Julio Araujo   +3 more
doaj   +1 more source

Strong Oriented Chromatic Number of Planar Graphs without Short Cycles [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Let M be an additive abelian group. An M-strong-oriented coloring of an oriented graph G is a mapping f from V(G) to M such that f(u) j(v) whenever uv is an arc in G and f(v)−f(u) −(f(t)−f(z)) whenever uv and zt are two arcs in G.
Mickael Montassier   +2 more
doaj   +1 more source

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