Results 1 to 10 of about 5,057 (262)

A linear delay algorithm for enumerating all connected induced subgraphs [PDF]

open access: yesBMC Bioinformatics, 2019
Background Real biological and social data is increasingly being represented as graphs. Pattern-mining-based graph learning and analysis techniques report meaningful biological subnetworks that elucidate important interactions among entities.
Mohammed Alokshiya   +2 more
doaj   +2 more sources

Sparse induced subgraphs of large treewidth

open access: yesJournal of Combinatorial Theory Series B
International audienceMotivated by an induced counterpart of treewidth sparsifiers (i.e., sparse subgraphs keeping the treewidth large) provided by the Grid Minor theorem of Robertson and Seymour [JCTB '86] or by a result of Chekuri and Chuzhoy [SODA '15]
Edouard Bonnet
exaly   +8 more sources

Vertex partitioning of graphs into odd induced subgraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2023
A graph $G$ is called an odd (even) graph if for every vertex $v\in V(G)$, $d_G(v)$ is odd (even). Let $G$ be a graph of even order. Scott in $1992$ proved that the vertices of every connected graph of even order can be partitioned into some odd induced ...
Arman Aashtab   +3 more
doaj   +2 more sources

Characterizing paths graphs on bounded degree trees by minimal forbidden induced subgraphs [PDF]

open access: yesDiscrete Mathematics, 2015
An undirected graph G is called a VPT graph if it is the vertex intersection graph of a family of paths in a tree. The class of graphs which admit a VPT representation in a host tree with maximum degree at most h is denoted by [h,2,1]. The classes [h,2,1]
Alcón, Liliana Graciela   +2 more
exaly   +2 more sources

Characterizing path graphs by forbidden induced subgraphs

open access: yesJournal of Graph Theory, 2009
International audienceA graph is a path graph if it is the intersection graph of a family of subpaths of a tree. In 1970, Renz asked for a characterizaton of path graphs by forbidden induced subgraphs.
Frédéric Maffray, Myriam Preissmann
exaly   +2 more sources

Topological structures induced by chromatic partitioning of vertex set of graphic [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2023
This paper presents a method of constructing topologies on vertex set of a graph G induced by chromatic partition of vertex set of the graph. It introduces colour lower approximation and colour upper approximation of vertex induced subgraphs and ...
K. Lalithambigai, P. Gnanachandra
doaj   +1 more source

Enumerating Maximal Induced Subgraphs [PDF]

open access: yes, 2023
Given a graph G, the maximal induced subgraphs problem asks to enumerate all maximal induced subgraphs of G that belong to a certain hereditary graph class.
Cao, Yixin, Cao, Y
core   +1 more source

On the size of induced acyclic subgraphs in random digraphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Graphs and ...
Joel Spencer, C.R. Subramanian
doaj   +3 more sources

Efficient Densest Subgraphs Discovery in Large Dynamic Graphs by Greedy Approximation

open access: yesIEEE Access, 2023
Densest subgraph detection has become an important primitive in graph mining tasks when analyzing communities and detecting events in a wide range of application domains.
Tao Han
doaj   +1 more source

On Implicit Heavy Subgraphs and Hamiltonicity of 2-Connected Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A graph G of order n is implicit claw-heavy if in every induced copy of K1,3 in G there are two non-adjacent vertices with sum of their implicit degrees at least n. We study various implicit degree conditions (including, but not limiting to, Ore- and Fan-
Zheng Wei, Wideł Wojciech, Wang Ligong
doaj   +1 more source

Home - About - Disclaimer - Privacy