Results 21 to 30 of about 24,121 (267)

On the Packing Partitioning Problem on Directed Graphs

open access: yesMathematics, 2021
This work is aimed to continue studying the packing sets of digraphs via the perspective of partitioning the vertex set of a digraph into packing sets (which can be interpreted as a type of vertex coloring of digraphs) and focused on finding the minimum ...
Babak Samadi, Ismael G. Yero
doaj   +1 more source

Graphs that are Critical for the Packing Chromatic Number

open access: yesDiscussiones Mathematicae Graph Theory, 2022
Given a graph G, a coloring c : V (G) → {1, …, k} such that c(u) = c(v) = i implies that vertices u and v are at distance greater than i, is called a packing coloring of G.
Brešar Boštjan, Ferme Jasmina
doaj   +1 more source

Coloring, packing and embedding of graphs

open access: green, 2012
Cette thèse se situe dans le domaine de graphes et de leurs applications, Elleest constitué de trois grandes parties, la première est consacrée à l’étude d’unnouveau type de coloration sommets distinguantes, les arête-colorations sommetsdistinguantespar écarte.
Mohammed Amin Tahraoui
openalex   +3 more sources

On S-packing edge-coloring of graphs with given edge weight

open access: diamondDiscussiones Mathematicae Graph Theory
Jian Lu, Xiang-Feng Pan
doaj   +2 more sources

On the Descriptive Complexity of Color Coding

open access: yesAlgorithms, 2021
Color coding is an algorithmic technique used in parameterized complexity theory to detect “small” structures inside graphs. The idea is to derandomize algorithms that first randomly color a graph and then search for an easily-detectable, small color ...
Max Bannach, Till Tantau
doaj   +1 more source

Be3Ru: Polar Multiatomic Bonding in the Closest Packing of Atoms

open access: yesChemistryOpen, 2022
The new phase Be3Ru crystallizes with TiCu3‐type structure (space group Pmmn (59), a=3.7062(1) Å, b=4.5353(1) Å, c=4.4170(1) Å), a coloring variant of the hexagonal closest packing (hcp) of spheres.
Laura Agnarelli   +7 more
doaj   +1 more source

Compressed Subsequence Matching and Packed Tree Coloring [PDF]

open access: yesAlgorithmica, 2014
We present a new algorithm for subsequence matching in grammar compressed strings. Given a grammar of size $n$ compressing a string of size $N$ and a pattern string of size $m$ over an alphabet of size $ $, our algorithm uses $O(n+\frac{n }{w})$ space and $O(n+\frac{n }{w}+m\log N\log w\cdot occ)$ or $O(n+\frac{n }{w}\log w+m\log N\cdot occ)$ time.
Bille, Philip   +2 more
openaire   +5 more sources

Online Colored Bin Packing [PDF]

open access: yes, 2015
Comment: Added lower bound of 2.5 for at least three colors, expanded some ...
Böhm, Martin   +2 more
openaire   +3 more sources

Online Interval Coloring with Packing Constraints [PDF]

open access: yesTheoretical Computer Science, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Epstein, Leah, Levy, Meital
openaire   +2 more sources

S-Packing Colorings of Cubic Graphs [PDF]

open access: yes, 2016
Given a non-decreasing sequence $S=(s\_1,s\_2, \ldots, s\_k)$ of positive integers, an {\em $S$-packing coloring} of a graph $G$ is a mapping $c$ from $V(G)$ to $\{s\_1,s\_2, \ldots, s\_k\}$ such that any two vertices with color $s\_i$ are at mutual ...
Gastineau, Nicolas, Togni, Olivier
core   +2 more sources

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