Results 171 to 180 of about 8,313 (308)

MAXIMUM r-REGULAR INDUCED SUBGRAPH PROBLEM: FAST EXPONENTIAL ALGORITHMS AND COMBINATORIAL BOUNDS

open access: yes, 2012
We show that for a fixed r, the number of maximal r-regular induced subgraphs in any graph with n vertices is upper bounded by O(c(n)), where c is a positive constant strictly less than 2.
Saurabh, S.   +5 more
core   +1 more source

Sensitivity and Hamming Graphs

open access: yesJournal of Graph Theory, Volume 112, Issue 3, Page 296-305, July 2026.
ABSTRACT For any m ≥ 3 we show that the Hamming graph H ( n , m ) admits an imbalanced partition into m sets, each inducing a subgraph of low maximum degree. This improves previous results by Tandya and by Potechin and Tsang, and disproves the Strong m‐ary Sensitivity Conjecture of Asensio, García‐Marco, and Knauer.
Sara Asensio   +3 more
wiley   +1 more source

Reoptimization of maximum weight induced hereditary subgraph problems

open access: yes, 2011
The reoptimization issue studied in this paper can be described as follows: given an instance I of some problem Π, an optimal solution OPT for Π in I and an instance I′ resulting from a local perturbation of I that consists of insertions or removals of a
Monnot, Jérôme   +2 more
core  

Path Eccentricity and Forbidden Induced Subgraphs

open access: yesCoRR
Abstract.
Cichacz, Sylwia   +4 more
openaire   +3 more sources

Treewidth Versus Clique Number. V. Further Connections With Tree‐Independence Number

open access: yesJournal of Graph Theory, Volume 112, Issue 3, Page 337-351, July 2026.
ABSTRACT We continue the study of ( tw , ω )‐bounded graph classes, that is, hereditary graph classes in which large treewidth is witnessed by the presence of a large clique, and the relation of this property to boundedness of the tree‐independence number, a graph parameter introduced independently by Yolov in 2018 and by Dallard, Milanič, and Štorgel ...
Claire Hilaire   +2 more
wiley   +1 more source

Unavoidable Induced Subgraph of Infinite 2-connected Graphs [PDF]

open access: green, 2022
Sarah Allred   +2 more
openalex   +1 more source

Every tree contains a large induced subgraph with all degrees odd

open access: yes, 1995
Caro et al. [3] proved that every tree of order n contains an induced subgraph of order at least ⌈n2⌉ with all degrees odd, and conjectured a better bound. In this note we prove that every tree of order n contains an induced subgraph of order at least 2⌊(
Scott, A.D.   +3 more
core   +1 more source

Ordered Median Traveling Salesman Problem

open access: yesNetworks, Volume 88, Issue 1, Page 59-84, July 2026.
ABSTRACT This paper introduces a novel combinatorial optimization problem with ordering constraints, termed the Ordered Median Traveling Salesman Problem (OMTSP). The OMTSP integrates key elements from both the classic Traveling Salesman Problem (TSP) and the Ordered Median Location Problem.
Ivana Ljubić   +3 more
wiley   +1 more source

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