Results 41 to 50 of about 507,111 (281)

On H-irregularity strengths of G-amalgamation of graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2017
A simple graph G=(V(G),E(G)) admits an H-covering if every edge in E(G) belongs at least to one subgraph of G isomorphic to a given graph H. Then the graph G admitting H-covering admits an H-irregular total k-labeling f: V(G) U E(G) \to {1, 2, ..., k} if
Faraha Ashraf   +3 more
doaj   +1 more source

ON THE EDGE COVER POLYNOMIAL OF CERTAIN GRAPHS [PDF]

open access: yesJournal of Algebraic Systems, 2015
Let $G$ be a simple graph of order $n$ and size $m$.The edge covering of $G$ is a set of edges such that every vertex of $G$ is incident to at least one edge of the set.
Saeid Alikhani, Sommayeh Jahari
doaj   +1 more source

Connectedness of graphs and its application to connected matroids through covering-based rough sets [PDF]

open access: yes, 2015
Graph theoretical ideas are highly utilized by computer science fields especially data mining. In this field, a data structure can be designed in the form of tree.
Huang, Aiping, Zhu, William
core  

Covering a cubic graph with perfect matchings

open access: yes, 2013
Let G be a bridgeless cubic graph. A well-known conjecture of Berge and Fulkerson can be stated as follows: there exist five perfect matchings of G such that each edge of G is contained in at least one of them.
Mazzuoccolo, Giuseppe
core   +1 more source

Domination cover number of graphs [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2019
A set [Formula: see text] for the graph [Formula: see text] is called a dominating set if any vertex [Formula: see text] has at least one neighbor in [Formula: see text]. Fomin et al. [Combinatorial bounds via measure and conquer: Bounding minimal dominating sets and applications, ACM Transactions on Algorithms (TALG) 5(1) (2008) 9] gave an algorithm ...
M. Alambardar Meybodi   +3 more
openaire   +2 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

The monadic second-order logic of graphs XVI : Canonical graph decompositions [PDF]

open access: yesLogical Methods in Computer Science, 2006
This article establishes that the split decomposition of graphs introduced by Cunnigham, is definable in Monadic Second-Order Logic.This result is actually an instance of a more general result covering canonical graph decompositions like the modular ...
Bruno Courcelle
doaj   +1 more source

Covering problems in edge- and node-weighted graphs

open access: yes, 2014
This paper discusses the graph covering problem in which a set of edges in an edge- and node-weighted graph is chosen to satisfy some covering constraints while minimizing the sum of the weights. In this problem, because of the large integrality gap of a
A. Berger   +18 more
core   +1 more source

Coverings of k-graphs

open access: yesJournal of Algebra, 2005
k-graphs are higher-rank analogues of directed graphs which were first developed to provide combinatorial models for operator algebras of Cuntz-Krieger type. Here we develop the theory of covering spaces for k-graphs, obtaining a satisfactory version of the usual topological classification in terms of subgroups of a fundamental group.
Pask, David, Quigg, J., Raeburn, Iain
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

Home - About - Disclaimer - Privacy