Results 91 to 100 of about 92,928 (333)

Antipodal Edge-Colorings of Hypercubes

open access: yesDiscussiones Mathematicae Graph Theory, 2019
Two vertices of the k-dimensional hypercube Qkare antipodal if they differ in every coordinate. Edges uv and xy are antipodal if u is antipodal to x and v is antipodal to y.
West Douglas B., Wise Jennifer I.
doaj   +1 more source

The Relaxed Game Chromatic Index of \u3cem\u3ek\u3c/em\u3e-Degenerate Graphs [PDF]

open access: yes, 2007
The (r, d)-relaxed coloring game is a two-player game played on the vertex set of a graph G. We consider a natural analogue to this game on the edge set of G called the (r, d)-relaxed edge-coloring game. We consider this game on trees and more generally,
Dunn, Charles
core   +1 more source

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

open access: yesMolecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker   +16 more
wiley   +1 more source

Parsimonious edge coloring

open access: yesDiscrete Mathematics, 1996
The authors investigate the largest fraction of edges in a 3-regular graph that can be colored in 3 colors. They show that this fraction is always at least 13/15 and sometimes at most 25/27. They investigate the analogous problem for graphs of maximum degree 3 and also for 4-regular graphs with 4 colors instead of 3.
Albertson, Michael O., Haas, Ruth
openaire   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

Twin edge colorings of certain square graphs and product graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2016
A twin edge $k\!$-coloring of a graph $G$ is a proper edge $k$-coloring of $G$ with the elements of $\mathbb{Z}_k$ so that the induced vertex $k$-coloring, in which the color of a vertex $v$ in $G$ is the sum in $\mathbb{Z}_k$ of the colors of the edges ...
R Rajarajachozhan, R. Sampathkumar
doaj   +1 more source

Solution of Vizing's Problem on Interchanges for Graphs with Maximum Degree 4 and Related Results [PDF]

open access: yes, 2014
Let $G$ be a Class 1 graph with maximum degree $4$ and let $t\geq 5$ be an integer. We show that any proper $t$-edge coloring of $G$ can be transformed to any proper $4$-edge coloring of $G$ using only transformations on $2$-colored subgraphs (so-called ...
Asratian, Armen S.   +1 more
core  

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

open access: yesMolecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang   +8 more
wiley   +1 more source

The $r$-dynamic edge coloring of a closed helm graph [PDF]

open access: diamond, 2023
Raúl Manuel Falcón Ganfornina   +3 more
openalex   +1 more source

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