# graph.lcf

0th

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##### Creating a graph from LCF notation

LCF is short for Lederberg-Coxeter-Frucht, it is a concise notation for 3-regular Hamiltonian graphs. It constists of three parameters, the number of vertices in the graph, a list of shifts giving additional edges to a cycle backbone and another integer giving how many times the shifts should be performed. See http://mathworld.wolfram.com/LCFNotation.html for details.

Keywords
graphs
##### Usage
graph.lcf(n, shifts, repeats)
##### Arguments
n
Integer, the number of vertices in the graph.
shifts
Integer vector, the shifts.
repeats
Integer constant, how many times to repeat the shifts.
##### Value

• A graph object.

##### concept

LCF notation

graph can create arbitrary graphs, see also the other functions on the its manual page for creating special graphs.

• graph.lcf
##### Examples
# This is the Franklin graph:
g1 <- graph.lcf(12, c(5,-5), 6)
g2 <- graph.famous("Franklin")
graph.isomorphic.vf2(g1, g2)
Documentation reproduced from package igraph, version 0.6.5-2, License: GPL (>= 2)

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