Results 21 to 30 of about 45 (34)
We characterize the class L32$L_3^2 $ of intersection graphs of hypergraphs with rank at most 3 and multiplicity at most 2 by means of a finite list of forbidden induced subgraphs in the class of threshold graphs.
Metelsky Yury+2 more
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Requiring that Minimal Separators Induce Complete Multipartite Subgraphs
Complete multipartite graphs range from complete graphs (with every partite set a singleton) to edgeless graphs (with a unique partite set). Requiring minimal separators to all induce one or the other of these extremes characterizes, respectively, the ...
McKee Terry A.
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The classification of partially symmetric 3-braid links
We classify 3-braid links which are amphicheiral as unoriented links, including a new proof of Birman- Menasco’s result for the (orientedly) amphicheiral 3-braid links. Then we classify the partially invertible 3-braid links.
Stoimenov Alexander
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Sharp Upper Bounds on the Clar Number of Fullerene Graphs
The Clar number of a fullerene graph with n vertices is bounded above by ⌊n/6⌋ − 2 and this bound has been improved to ⌊n/6⌋ − 3 when n is congruent to 2 modulo 6.
Gao Yang, Zhang Heping
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Archimedean tiling graphs with Gallai’s property
Gallai in 1966 raised the question about the existence of graphs with the property that every vertex is missed by some longest path. This property will be called Gallai’s property.
Chang Zhikui, Yuan Liping
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Combinatorial Properties and Recognition of Unit Square Visibility Graphs. [PDF]
Casel K+4 more
europepmc +1 more source
Best match graphs and reconciliation of gene trees with species trees. [PDF]
Geiß M+6 more
europepmc +1 more source
Minimum triplet covers of binary phylogenetic X-trees. [PDF]
Huber KT, Moulton V, Steel M.
europepmc +1 more source
RIGID GRAPH COMPRESSION: MOTIF-BASED RIGIDITY ANALYSIS FOR DISORDERED FIBER NETWORKS. [PDF]
Heroy S+4 more
europepmc +1 more source
Universal Completability, Least Eigenvalue Frameworks, and Vector Colorings. [PDF]
Godsil C+4 more
europepmc +1 more source