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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

Clique decompositions of multipartite graphs and completion of Latin squares [PDF]

open access: yes, 2017
Our main result essentially reduces the problem of finding an edge-decomposition of a balanced r-partite graph of large minimum degree into r-cliques to the problem of finding a fractional r-clique decomposition or an approximate one.
Barber, Ben   +4 more
core   +4 more sources

Detour self-decomposition of corona product of graphs

open access: yesRatio Mathematica, 2023
Decomposition of a graph G is the collection of edge-disjoint subgraphs of G. The longest distance between any two vertices of G is its detour distance.
E Ebin Raja Merly, E Anlin Bena
doaj   +1 more source

Rigidity of graph products of abelian groups

open access: yes, 2007
We show that if $G$ is a group and $G$ has a graph-product decomposition with finitely-generated abelian vertex groups, then $G$ has two canonical decompositions as a graph product of groups: a unique decomposition in which each vertex group is a ...
Gutierrez, Mauricio, Piggott, Adam
core   +1 more source

A note on pm-compact bipartite graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2014
A graph is called perfect matching compact (briefly, PM-compact), if its perfect matching graph is complete. Matching-covered PM-compact bipartite graphs have been characterized. In this paper, we show that any PM-compact bipartite graph G with δ (G) ≥ 2
Liu Jinfeng, Wang Xiumei
doaj   +1 more source

Even-cycle decompositions of graphs with no odd-$K_4$-minor

open access: yes, 2017
An even-cycle decomposition of a graph G is a partition of E(G) into cycles of even length. Evidently, every Eulerian bipartite graph has an even-cycle decomposition.
Huynh, Tony   +2 more
core   +1 more source

On Hamilton Decompositions of Line Graphs of Non-Hamiltonian Graphs and Graphs without Separating Transitions [PDF]

open access: yes, 2017
In contrast with Kotzig's result that the line graph of a $3$-regular graph $X$ is Hamilton decomposable if and only if $X$ is Hamiltonian, we show that for each integer $k\geq 4$ there exists a simple non-Hamiltonian $k$-regular graph whose line graph ...
Bryant, Darryn   +2 more
core   +1 more source

Decompositions of triangle-dense graphs [PDF]

open access: yesProceedings of the 5th conference on Innovations in theoretical computer science, 2014
High triangle density -- the graph property stating that a constant fraction of two-hop paths belong to a triangle -- is a common signature of social networks. This paper studies triangle-dense graphs from a structural perspective. We prove constructively that significant portions of a triangle-dense graph are contained in a disjoint union of dense ...
Gupta, Rishi   +2 more
openaire   +3 more sources

Methylation biomarkers can distinguish pleural mesothelioma from healthy pleura and other pleural pathologies

open access: yesMolecular Oncology, EarlyView.
We developed and validated a DNA methylation–based biomarker panel to distinguish pleural mesothelioma from other pleural conditions. Using the IMPRESS technology, we translated this panel into a clinically applicable assay. The resulting two classifier models demonstrated excellent performance, achieving high AUC values and strong diagnostic accuracy.
Janah Vandenhoeck   +12 more
wiley   +1 more source

Shared-memory Graph Truss Decomposition

open access: yes, 2017
We present PKT, a new shared-memory parallel algorithm and OpenMP implementation for the truss decomposition of large sparse graphs. A k-truss is a dense subgraph definition that can be considered a relaxation of a clique. Truss decomposition refers to a
Kabir, Humayun, Madduri, Kamesh
core   +1 more source

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