Results 31 to 40 of about 58,065 (305)

Optimizing tree decompositions in MSO [PDF]

open access: yesLogical Methods in Computer Science, 2022
The classic algorithm of Bodlaender and Kloks [J. Algorithms, 1996] solves the following problem in linear fixed-parameter time: given a tree decomposition of a graph of (possibly suboptimal) width k, compute an optimum-width tree decomposition of the ...
Mikołaj Bojańczyk, Michał Pilipczuk
doaj   +1 more source

Genus Distribution for a Graph [PDF]

open access: yes, 2009
In this paper we develop the technique of a distribution decomposition for a graph. A formula is given to determine genus distribution of a cubic graph.
Liangxia, Wan   +2 more
core   +1 more source

Independent sets of maximum weight in apple-free graphs [PDF]

open access: yes, 2010
We present the first polynomial-time algorithm to solve the maximum weight independent set problem for apple-free graphs, which is a common generalization of several important classes where the problem can be solved efficiently, such as claw-free graphs,
Lozin, Vadim V.   +2 more
core   +1 more source

Local Balance in Graph Decompositions [PDF]

open access: yesGraphs and Combinatorics, 2022
In a balanced graph decomposition, every vertex of the host graph appears in the same number of blocks. We propose the use of colored loops as a framework for unifying various other types of local balance conditions in graph decompositions. In the basic case where a single graph with colored loops is used as a block, an existence theory for such ...
Flora C. Bowditch, Peter J. Dukes
openaire   +2 more sources

Labeling, Covering and Decomposing of Graphs — Smarandache’s Notion in Graph Theory [PDF]

open access: yes, 2010
This paper surveys the applications of Smarandache’s notion to graph theory appeared in International J.Math.Combin. from Vol.1,2008 to Vol.3,2009.
Mao, Linfan, Linfan Mao
core   +1 more source

Decomposition of complete graphs into connected unicyclic graphs with eight edges and pentagon

open access: yesIndonesian Journal of Combinatorics, 2019
A G-decomposition of the complete graph Kn is a family of pairwise edge disjoint subgraphs of Kn, all isomorphic to G, such that every edge of Kn belongs to exactly one copy of G.
Dalibor Froncek, O'Neill Kingston
doaj   +1 more source

Fast Spectral Approximation of Structured Graphs with Applications to Graph Filtering

open access: yesAlgorithms, 2020
To analyze and synthesize signals on networks or graphs, Fourier theory has been extended to irregular domains, leading to a so-called graph Fourier transform.
Mario Coutino   +3 more
doaj   +1 more source

Decomposition of hypercube graphs into paths and cycles of length four

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
By a [Formula: see text]-decomposition of a graph G, we mean a partition of the edge set of G into p paths of length 4 and q cycles of length 4. In this paper, we give conditions for a [Formula: see text]-decomposition of the n-dimensional hypercube ...
D. Saranya, S. Jeevadoss
doaj   +1 more source

ON P4-DECOMPOSITION OF GRAPHS [PDF]

open access: yesTaiwanese Journal of Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

The Balanced Decomposition Number of TK4 and Series-Parallel Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2013
A balanced colouring of a graph G is a colouring of some of the vertices of G with two colours, say red and blue, such that there is the same number of vertices in each colour. The balanced decomposition number f(G) of G is the minimum integer s with the
Fujita Shinya, Liu Henry
doaj   +1 more source

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