Results 91 to 100 of about 6,506,964 (218)
哈林图的偶匹配可扩性(Bipartite matching-extendability of Halin graphs)
Let G be a connected graph containing a perfect matching. G is said to be bipartite matching extendable if every matching M of G whose induced subgraph is a bipartite matching extends to a perfect matching of G. The main result is as follows: Halin graph
HUIZhi-hao(惠志昊), ZHAOBiao(赵飚)
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Combination theorems for Wise's power alternative
Abstract We show that Wise's power alternative is stable under certain group constructions, use this to prove the power alternative for new classes of groups and recover known results from a unified perspective. For groups acting on trees, we introduce a dynamical condition that allows us to deduce the power alternative for the group from the power ...
Mark Hagen +2 more
wiley +1 more source
Induced subgraphs of graphs with large chromatic number. IX. Rainbow\n paths [PDF]
Alex Scott, Paul Seymour
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$K_4$-Minor-Free Induced Subgraphs of Sparse Connected Graphs [PDF]
Gwenaël Joret, David R. Wood
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Quasipolynomiality of the Smallest Missing Induced Subgraph [PDF]
David Eppstein +2 more
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Induced subgraphs of graphs with large chromatic number. I. Odd holes [PDF]
Alex Scott, Paul Seymour
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Hamilton cycles in almost distance-hereditary graphs
Let G be a graph on n ≥ 3 vertices. A graph G is almost distance-hereditary if each connected induced subgraph H of G has the property dH(x, y) ≤ dG(x, y) + 1 for any pair of vertices x, y ∈ V(H).
Chen Bing, Ning Bo
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Ramsey Graphs Induce Subgraphs of Quadratically Many Sizes [PDF]
Matthew Kwan, Benny Sudakov
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Some Variations of Perfect Graphs
We consider (ψk−γk−1)-perfect graphs, i.e., graphs G for which ψk(H) = γk−1(H) for any induced subgraph H of G, where ψk and γk−1 are the k-path vertex cover number and the distance (k − 1)-domination number, respectively.
Dettlaff Magda +3 more
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Induced subgraphs of graphs with large chromatic number. V. Chandeliers and strings [PDF]
Maria Chudnovsky +2 more
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