English
Related papers

Related papers: DP-Coloring Cartesian Products of Graphs

200 papers

DP-coloring (also called correspondence coloring) is a well-studied generalization of list coloring introduced by Dvo\v{r}\'{a}k and Postle in 2015. The following sharp bound on the DP-chromatic number of the Cartesian product of graphs $G$…

Combinatorics · Mathematics 2025-07-30 Hemanshu Kaul , Jeffrey A. Mudrock , Gunjan Sharma

While solving a question on list coloring of planar graphs, Dvo\v{r}\'{a}k and Postle introduced the new notion of DP-coloring (they called it correspondence coloring). A DP-coloring of a graph $G$ reduces the problem of finding a coloring…

Combinatorics · Mathematics 2018-03-26 Anton Bernshteyn , Alexandr Kostochka , Sergei Pron

DP-coloring (also called correspondence coloring) is a generalization of list coloring introduced by Dvo\v{r}\'{a}k and Postle in 2015. In 2019, Bernshteyn, Kostochka, and Zhu introduced a fractional version of DP-coloring. They showed that…

Combinatorics · Mathematics 2024-05-27 Daniel Dominik , Hemanshu Kaul , Jeffrey A. Mudrock

DP-coloring (or correspondence coloring) is a generalization of list coloring that has been widely studied since its introduction by Dvo\v{r}\'{a}k and Postle in 2015. As the analogue of the chromatic polynomial of a graph $G$, $P(G,m)$,…

Combinatorics · Mathematics 2023-03-21 Samantha L. Dahlberg , Hemanshu Kaul , Jeffrey A. Mudrock

DP-coloring (also known as correspondence coloring) is a generalization of list coloring developed recently by Dvo\v{r}\'{a}k and Postle. In this paper we introduce and study the fractional DP-chromatic number $\chi_{DP}^\ast(G)$. We…

Combinatorics · Mathematics 2019-06-04 Anton Bernshteyn , Alexandr Kostochka , Xuding Zhu

DP-coloring (also called correspondence coloring) is a generalization of list coloring that has been widely studied in recent years after its introduction by Dvo\v{r}\'{a}k and Postle in 2015. As the analogue of the chromatic polynomial…

DP-coloring (also called correspondence coloring) is a generalization of list coloring recently introduced by Dvo\v{r}\'{a}k and Postle. Several known bounds for the list chromatic number of a graph $G$, $\chi_\ell(G)$, also hold for the…

Combinatorics · Mathematics 2018-03-28 Jeffrey A. Mudrock

DP-coloring is a generalization of list coloring introduced recently by Dvo\v{r}\'ak and Postle. We prove that for every $n$-vertex graph $G$ whose chromatic number $\chi(G)$ is "close" to $n$, the DP-chromatic number of $G$ equals…

Combinatorics · Mathematics 2018-03-26 Anton Bernshteyn , Alexandr Kostochka , Xuding Zhu

DP-coloring (also called correspondence coloring) is a generalization of list coloring introduced by Dvo\v{r}\'{a}k and Postle in 2015. The DP-chromatic number of a graph $G$, $\chi_{_{DP}}(G)$, is the analogue of the chromatic number of…

Combinatorics · Mathematics 2026-05-04 Daniel Dominik , Jeffrey A. Mudrock

DP-coloring (also called correspondence coloring) is a generalization of list coloring that has been widely studied in recent years after its introduction by Dvo\v{r}\'{a}k and Postle in 2015. As the analogue of the chromatic polynomial…

Combinatorics · Mathematics 2024-12-23 Charlie Halberg , Hemanshu Kaul , Andrew Liu , Jeffrey A. Mudrock , Paul Shin , Seth Thomason

DP-coloring (also called correspondence coloring) is a generalization of list coloring that has been widely studied in recent years after its introduction by Dvo\v{r}\'{a}k and Postle in 2015. As the analogue of the chromatic polynomial of…

Combinatorics · Mathematics 2023-08-15 Hemanshu Kaul , Michael Maxfield , Jeffrey A. Mudrock , Seth Thomason

DP-coloring (also called correspondence coloring) is a generalization of list coloring that was introduced by Dvo\v{r}\'{a}k and Postle in 2015. The chromatic polynomial of a graph is an important notion in algebraic combinatorics that was…

Combinatorics · Mathematics 2024-07-09 Jeffrey A. Mudrock , Gabriel Sharbel

DP-coloring (also known as correspondence coloring) is a generalization of list coloring developed recently by Dvo\v{r}\'ak and Postle. We introduce and study $(i,j)$-defective DP-colorings of simple graphs. Let $g_{DP}(i,j,n)$ be the…

Combinatorics · Mathematics 2020-06-19 Yifan Jing , Alexandr Kostochka , Fuhong Ma , Jingwei Xu

DP-coloring (also known as correspondence coloring) is a generalization of list coloring introduced recently by Dvo\v{r}\'{a}k and Postle. Many known upper bounds for the list-chromatic number extend to the DP-chromatic number, but not all…

Combinatorics · Mathematics 2017-11-02 Anton Bernshteyn , Alexandr Kostochka

DP-coloring (also called correspondence coloring) of graphs is a generalization of list coloring that has been widely studied since its introduction by Dvo\v{r}\'{a}k and Postle in $2015$. Intuitively, DP-coloring generalizes list coloring…

Combinatorics · Mathematics 2025-02-11 Anton Bernshteyn , Daniel Dominik , Hemanshu Kaul , Jeffrey A. Mudrock

The chromatic polynomial of a graph $G$, denoted $P(G,m)$, is equal to the number of proper $m$-colorings of $G$. The list color function of graph $G$, denoted $P_{\ell}(G,m)$, is a list analogue of the chromatic polynomial that has been…

Combinatorics · Mathematics 2020-07-13 Hemanshu Kaul , Jeffrey A. Mudrock

DP-coloring (also called correspondence coloring) is a generalization of list coloring that has been widely studied in recent years after its introduction by Dvo\v{r}\'{a}k and Postle in 2015. The chromatic polynomial of a graph is an…

Combinatorics · Mathematics 2021-10-11 Manh Vu Bui , Hemanshu Kaul , Michael Maxfield , Jeffrey A. Mudrock , Paul Shin , Seth Thomason

DP-coloring is a generalization of list coloring that was introduced in 2015 by Dvo\v{r}\'{a}k and Postle. The chromatic polynomial of a graph $G$, denoted $P(G,m)$, is equal to the number of proper $m$-colorings of $G$. A well-known tool…

Combinatorics · Mathematics 2021-07-20 Jeffrey A. Mudrock

DP-coloring (also known as correspondence coloring) is a generalization of list coloring developed recently by Dvorak and Postle. We introduce and study $(i,j)$-defective DP-colorings of multigraphs. We concentrate on sparse multigraphs and…

Combinatorics · Mathematics 2019-12-10 Yifan Jing , Alexandr Kostochka , Fuhong Ma , Pongpat Sittitrai , Jingwei Xu

By a graph we mean a finite undirected graph having multiple edges but no loops. Given a graph property $\mathcal{P}$, a $\mathcal{P}$-coloring of a graph $G$ with color set $C$ is a mapping $\f:V(G)\to C$ such that for each color $c\in C$…

Combinatorics · Mathematics 2021-08-30 Alexandr V. Kostochka , Thomas Schweser , Michael Stiebitz
‹ Prev 1 2 3 10 Next ›