Results 21 to 30 of about 44 (43)

The Unit Bar Visibility Number of a Graph

open access: yesJournal of Graph Algorithms and Applications, 2016
A $t$-unit-bar representation of a graph $G$ is an assignment of sets of at most $t$ horizontal unit-length segments in the plane to the vertices of $G$ so that (1) all of the segments are pairwise nonintersecting, and (2) two vertices $x$ and $y$ are ...
Emily Gaub, Michelle Rose, Paul Wenger
doaj   +1 more source

The classification of partially symmetric 3-braid links

open access: yesOpen Mathematics, 2015
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
doaj   +1 more source

Archimedean tiling graphs with Gallai’s property

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
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
doaj   +1 more source
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Circle graphs are quadratically χ‐bounded

Bulletin of the London Mathematical Society, 2021
Rose McCarty
exaly  

A few weight systems arising from intersection graphs

Michigan Mathematical Journal, 2003
Blake Mellor
exaly  

Compressed polytopes, initial ideals and complete multipartite graphs

Illinois Journal of Mathematics, 2000
Hidefumi Ohsugi
exaly  

Every graph is a cut locus

Journal of the Mathematical Society of Japan, 2015
Costin Vilcu, Jin-Ichi Itoh
exaly  

Kneser Representations of Graphs

SIAM Journal on Discrete Mathematics, 2009
Attila Por
exaly  

Separation Dimension of Bounded Degree Graphs

SIAM Journal on Discrete Mathematics, 2015
Deepak Rajendraprasad   +2 more
exaly  

Computing Common Intervals of K Permutations, with Applications to Modular Decomposition of Graphs

SIAM Journal on Discrete Mathematics, 2008
Cedric Chauve   +2 more
exaly  

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