Results 161 to 170 of about 9,631,849 (193)

Atomic resolution cryo-EM at 200 keV. [PDF]

open access: yesIUCrJ
Danev R   +4 more
europepmc   +1 more source

On 3-chromatic distance-regular graphs [PDF]

open access: yes
Brouwer, A.E.   +2 more
core  

On the oriented chromatic number of grids [PDF]

open access: yesInformation Processing Letters, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guillaume Fertin, André Raspaud
exaly   +5 more sources

On the oriented chromatic number of graphs with given excess [PDF]

open access: yesDiscrete Mathematics, 2006
Given an oriented graph \(\vec{G}\) (that is, a directed graph without opposite arcs), the oriented chromatic number \(\chi(\vec{G})\) of \(\vec{G}\) is the smallest integer \(k\) for which there exists a mapping \(c:\;V(\vec{G}) \to \{1,2,\dots, k\}\) such that, for each \(uv \in E(\vec{G})\), \(c(u) \neq c(v)\) and, for each \(uv, wt \in E(\vec{G})\),
Éric Sopena
exaly   +7 more sources

On the chromatic number of an oriented matroid [PDF]

open access: yesJournal of Combinatorial Theory Series B, 2008
Recently, two distinct generalizations of a chromatic number have been proposed for oriented matroids. The oriented chromatic number \(\chi_o\) of \textit{L. A. Goddyn, M. Tarsi} and \textit{C.-Q. Zhang} [J. Graph Theory 28, No.\,3, 155--161 (1998; Zbl 0922.05027)] and \textit{L. Goddyn, P. Hliněný} and \textit{W. Hochstättler} [Comb. Probab.
Winfried Hochstättler, Robert Nickel
exaly   +5 more sources

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