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Notes on complexity of packing coloring [PDF]

open access: greenInformation Processing Letters, 2017
A packing $k$-coloring for some integer $k$ of a graph $G=(V,E)$ is a mapping $ :V\to\{1,\ldots,k\}$ such that any two vertices $u, v$ of color $ (u)= (v)$ are in distance at least $ (u)+1$. This concept is motivated by frequency assignment problems. The \emph{packing chromatic number} of $G$ is the smallest $k$ such that there exists a packing $k$-
Minki Kim   +3 more
semanticscholar   +11 more sources

Independence Number and Packing Coloring of Generalized Mycielski Graphs

open access: diamondDiscussiones Mathematicae Graph Theory, 2021
For a positive integer k ⩾ 1, a graph G with vertex set V is said to be k-packing colorable if there exists a mapping f : V ↦ {1, 2, . . ., k} such that any two distinct vertices x and y with the same color f(x) = f(y) are at distance at least f(x) + 1 ...
Bidine Ez Zobair   +2 more
doaj   +5 more sources

On distance dominator packing coloring in graphs

open access: diamondDiscussiones Mathematicae Graph Theory, 2021
Let G be a graph and let S = (s1,s2,..., sk) be a non-decreasing sequence of positive integers. An S-packing coloring of G is a mapping c : V(G) ? {1, 2,..., k} with the following property: if c(u) = c(v) = i, then d(u,v) > si for any i ? {1, 2,...,k}.
Jasmina Ferme, Dasa Stesl
semanticscholar   +6 more sources

Packing Coloring of Some Undirected and Oriented Coronae Graphs [PDF]

open access: diamondDiscussiones Mathematicae Graph Theory, 2017
The packing chromatic number χρ(G) of a graph G is the smallest integer k such that its set of vertices V(G) can be partitioned into k disjoint subsets V1, . . . , Vk, in such a way that every two distinct vertices in Vi are at distance greater than i in
Laïche Daouya   +2 more
doaj   +3 more sources

Packing coloring of generalized Sierpinski graphs [PDF]

open access: greenDiscrete Mathematics & Theoretical Computer Science, 2019
The packing chromatic number $\chi_{\rho}(G)$ of a graph $G$ is the smallest integer $c$ such that the vertex set $V(G)$ can be partitioned into sets $X_1, . . .
Danilo Korze, Aleksander Vesel
doaj   +5 more sources

Counting packings of list-colorings of graphs [PDF]

open access: greenEnumerative Combinatorics and Applications
11 ...
Hemanshu Kaul, Jeffrey A. Mudrock
doaj   +5 more sources

Packing list‐colorings [PDF]

open access: hybridRandom Structures & Algorithms, 2023
AbstractList coloring is an influential and classic topic in graph theory. We initiate the study of a natural strengthening of this problem, where instead of one list‐coloring, we seek many in parallel. Our explorations have uncovered a potentially rich seam of interesting problems spanning chromatic graph theory. Given a ‐list‐assignment of a graph ,
Stijn Cambie   +3 more
openalex   +8 more sources

Further results and questions on S-packing coloring of subcubic graphs [PDF]

open access: hybridDiscrete Mathematics
For non-decreasing sequence of integers $S=(a_1,a_2, \dots, a_k)$, an $S$-packing coloring of $G$ is a partition of $V(G)$ into $k$ subsets $V_1,V_2,\dots,V_k$ such that the distance between any two distinct vertices $x,y \in V_i$ is at least $a_{i}+1$, $
Maidoun Mortada, Olivier Togni
semanticscholar   +4 more sources

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