Results 31 to 40 of about 10,073 (269)

Sudoku number of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
We introduce a concept in graph coloring motivated by the popular Sudoku puzzle. Let [Formula: see text] be a graph of order n with chromatic number [Formula: see text] and let [Formula: see text] Let [Formula: see text] be a k-coloring of the induced ...
J. Maria Jeyaseeli   +3 more
doaj   +1 more source

IMPLEMENTASI ALGORITMA GREEDY UNTUK MELAKUKAN GRAPH COLORING: STUDI KASUS PETA PROPINSI JAWA TIMUR

open access: yesJurnal Informatika, 2010
This paper will describe us how to coloring a graph by using greedy algorithm with the case study province of Jawa Timur. From this research we will know that for graph coloring at Jawa Timur Province only use four difference colors.
Ardiansyah Ardiansyah   +5 more
doaj   +1 more source

Erdős-Gallai-Type Results for Total Monochromatic Connection of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A graph is said to be total-colored if all the edges and the vertices of the graph are colored. A total-coloring of a graph is a total monochromatically-connecting coloring (TMC-coloring, for short) if any two vertices of the graph are connected by a ...
Jiang Hui, Li Xueliang, Zhang Yingying
doaj   +1 more source

Strong parity vertex coloring of plane graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
A strong parity vertex coloring of a 2-connected plane graph is a coloring of the vertices such that every face is incident with zero or an odd number of vertices of each color.
Tomas Kaiser   +3 more
doaj   +1 more source

Animation Visualization for Vertex Coloring of Polyhedral Graphs [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2013
Vertex coloring of a graph is the assignment of labels to the vertices of the graph so that adjacent vertices have different labels. In the case of polyhedral graphs, the chromatic number is 2, 3, or 4. Edge coloring problem and face coloring problem can
Hidetoshi Nonaka
doaj  

Online Graph Coloring for $k$-Colorable Graphs

open access: yesCoRR
We study the problem of online graph coloring for $k$-colorable graphs. The best previously known deterministic algorithm uses $\widetilde{O}(n^{1-\frac{1}{k!}})$ colors for general $k$ and $\widetilde{O}(n^{5/6})$ colors for $k = 4$, both given by Kierstead in 1998. In this paper, we finally break this barrier, achieving the first major improvement in
Ken-ichi Kawarabayashi   +2 more
openaire   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Rainbow Connection on Amal(Fn,xz,m) Graphs and Amal(On,xz,m) Graphs

open access: yesContemporary Mathematics and Applications (ConMathA)
Coloring graph is giving a color to a set of vertices and a set of edges on a graph. The condition for coloring a graph is that each color is different for each neighboring member graph.
Muhammad Usaid Hudloir   +4 more
doaj   +1 more source

On hamiltonian colorings of graphs

open access: yesDiscrete Mathematics, 2005
The authors give a lower bound for the circumference of a graph in terms of the number of vertices that receive colors between two specified colors in a Hamiltonian coloring of the graph. As a consequence, if there exists a Hamiltonian coloring of a connected graph \(G\) of order \(n\) such that at least \((n+2)/2\) vertices of \(G\) are colored with ...
Gary Chartrand   +2 more
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

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