Results 41 to 50 of about 3,872,892 (256)

Precise Upper Bound for the Strong Edge Chromatic Number of Sparse Planar Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2013
We prove that every planar graph with maximum degree ∆ is strong edge (2∆−1)-colorable if its girth is at least 40+1. The bound 2∆−1 is reached at any graph that has two adjacent vertices of degree ∆.
Borodin Oleg V., Ivanova Anna O.
doaj   +1 more source

Incidence and strong edge colorings of graphs

open access: yesDiscrete Mathematics, 1993
The incidence coloring number of a graph is defined and bounded in terms of the maximum degree. The incidence coloring number turns out to be the strong chromatic index of an associated bipartite graph. A bound for the strong chromatic index of bipartite graphs all of whose cycle lengths are divisible by 4 is improved.
Richard A. Brualdi   +1 more
openaire   +2 more sources

Upper Bounds for the Strong Chromatic Index of Halin Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
The strong chromatic index of a graph G, denoted by χ′s(G), is the minimum number of vertex induced matchings needed to partition the edge set of G. Let T be a tree without vertices of degree 2 and have at least one vertex of degree greater than 2.
Hu Ziyu, Lih Ko-Wei, Liu Daphne Der-Fen
doaj   +1 more source

Color code techniques in rainbow connection

open access: yesElectronic Journal of Graph Theory and Applications, 2018
Let G be a graph with an edge k-coloring γ : E(G) → {1, …, k} (not necessarily proper). A path is called a rainbow path if all of its edges have different colors.
Fendy Septyanto, Kiki A. Sugeng
doaj   +1 more source

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

Optimal strong parity edge-coloring of complete graphs [PDF]

open access: yesCombinatorica, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David P. Bunde   +3 more
openaire   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Strong parity edge-colorings of graphs

open access: yesEuropean Journal of Combinatorics
17 ...
Peter Bradshaw   +2 more
openaire   +3 more sources

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