Results 161 to 170 of about 331 (182)

Complexity of Coloring Graphs without Forbidden Induced Subgraphs

2001
We give a complete characterization of parameter graphs H for which the problem of coloring H-free graphs is polynomial and for which it is NP-complete. We further initiate a study of this problem for two forbidden subgraphs.
Král, D., Kratochvil, J., Tuza, Zs., Woeginger, G.J.   +3 more
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Forbidden Induced Subgraphs and the ��o��-Tarski Theorem

2020
Let $\mathscr C$ be a class of finite and infinite graphs that is closed under induced subgraphs. The well-known o -Tarski Theorem from classical model theory implies that $\mathscr C$ is definable in first-order logic (FO) by a sentence $ $ if and only if $\mathscr C$ has a finite set of forbidden induced finite subgraphs.
Chen, Yijia, Flum, Joerg
openaire   +1 more source

Polynomial $$\chi $$ χ -Binding Functions and Forbidden Induced Subgraphs: A Survey

Graphs and Combinatorics, 2019
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Ingo Schiermeyer, Bert Randerath
openaire   +2 more sources

Hereditary Domination in Graphs: Characterization with Forbidden Induced Subgraphs

SIAM Journal on Discrete Mathematics, 2008
The leaf graph of a connected graph is obtained by joining a new vertex of degree one to each noncutting vertex. We prove that if a connected graph $G$ is not dominated by any of its induced paths, then $G$ is dominated by a connected induced subgraph whose leaf graph, too, is an induced subgraph of $G$. It follows that, for every nonempty class ${\cal
openaire   +1 more source

Forbidden Induced Subgraphs for Toughness

Journal of Graph Theory, 2012
Katsuhiro Ota, Gabriel Sueiro
openaire   +1 more source

Amorphous TiO2 beats P25 in visible light photo-catalytic performance due to both total-internal-reflection boosted solar photothermal conversion and negative temperature coefficient of the forbidden bandwidth

Applied Catalysis B: Environmental, 2022
Bo Deng
exaly  

Substituent Effects in Mechanochemical Allowed and Forbidden Cyclobutene Ring-Opening Reactions

Journal of the American Chemical Society, 2021
Cameron L Brown, Brandon H Bowser, M Sc Jan Meisner   +2 more
exaly  

Enabling propagation of anisotropic polaritons along forbidden directions via a topological transition

Science Advances, 2021
Jiahua Duan, Gonzalo Álvarez-Pérez, Kirill V Voronin   +2 more
exaly  

Measurement of the spin-forbidden dark excitons in MoS2 and MoSe2 monolayers

Nature Communications, 2020
Cedric Robert, Bo Han, Piotr Kapuściński   +2 more
exaly  

Shrinking light to allow forbidden transitions on the atomic scale

Science, 2016
Nicholas Rivera, Ido Kaminer, Bo Zhen
exaly