Results 1 to 10 of about 2,587 (156)

Circumference and Pathwidth of Highly Connected Graphs [PDF]

open access: greenJournal of Graph Theory, 2014
Birmele [J. Graph Theory, 2003] proved that every graph with circumference t has treewidth at most t-1. Under the additional assumption of 2-connectivity, such graphs have bounded pathwidth, which is a qualitatively stronger result. Birmele's theorem was
Emily A. Marshall, David R. Wood
core   +7 more sources

The List Coloring Reconfiguration Problem for Bounded Pathwidth Graphs [PDF]

open access: green, 2015
We study the problem of transforming one list (vertex) coloring of a graph into another list coloring by changing only one vertex color assignment at a time, while at all times maintaining a list coloring, given a list of allowed colors for each vertex ...
Tatsuhiko Hatanaka   +2 more
openalex   +3 more sources

Kernel Bounds for Structural Parameterizations of Pathwidth [PDF]

open access: green, 2012
Assuming the AND-distillation conjecture, the Pathwidth problem of determining whether a given graph G has pathwidth at most k admits no polynomial kernelization with respect to k.
Hans L. Bodlaender   +2 more
openalex   +4 more sources

Separating layered treewidth and row treewidth [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
Layered treewidth and row treewidth are recently introduced graph parameters that have been key ingredients in the solution of several well-known open problems.
Prosenjit Bose   +4 more
doaj   +1 more source

New Algorithms for Mixed Dominating Set [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2021
A mixed dominating set is a collection of vertices and edges that dominates all vertices and edges of a graph. We study the complexity of exact and parameterized algorithms for \textsc{Mixed Dominating Set}, resolving some open questions.
Louis Dublois   +2 more
doaj   +1 more source

Classes of graphs with restricted interval models [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 1999
We introduce q-proper interval graphs as interval graphs with interval models in which no interval is properly contained in more than q other intervals, and also provide a forbidden induced subgraph characterization of this class of graphs. We initiate a
Andrzej Proskurowski, Jan Arne Telle
doaj   +3 more sources

A new two-variable generalization of the chromatic polynomial [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
We present a two-variable polynomial, which simultaneously generalizes the chromatic polynomial, the independence polynomial, and the matching polynomial of a graph.
Klaus Dohmen   +2 more
doaj   +3 more sources

Recent Advances in Positive-Instance Driven Graph Searching

open access: yesAlgorithms, 2022
Research on the similarity of a graph to being a tree—called the treewidth of the graph—has seen an enormous rise within the last decade, but a practically fast algorithm for this task has been discovered only recently by Tamaki (ESA 2017).
Max Bannach, Sebastian Berndt
doaj   +1 more source

Effect of Steaming as Postprocessing Method on Rice Flour and Jaggery 3D Printed Construct

open access: yesJournal of Food Quality, Volume 2022, Issue 1, 2022., 2022
In this study, the 3D printing of a traditional South Indian snack, “sweet pidikollukattai” has been attempted. The mixing properties of the rice flour used and thermal characteristics of the paste (rice flour, jaggery, and water) have been reported. The traditional form of the product (control) was compared with the 3D printed product, which has been ...
S. Thangalakshmi   +7 more
wiley   +1 more source

Constrained Connectivity in Bounded X-Width Multi-Interface Networks

open access: yesAlgorithms, 2020
As technology advances and the spreading of wireless devices grows, the establishment of interconnection networks is becoming crucial. Main activities that involve most of the people concern retrieving and sharing information from everywhere.
Alessandro Aloisio, Alfredo Navarra
doaj   +1 more source

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