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- W1959654927 abstract "Let $X_1,..., X_n$ be independent, uniformly random points from $[0,1]^2$. We prove that if we add edges between these points one by one by order of increasing edge length then, with probability tending to 1 as the number of points $n$ tends to $infty$, the resulting graph gets its first Hamilton cycle at exactly the same time it loses its last vertex of degree less than two. This answers an open question of Penrose and provides an analogue for the random geometric graph of a celebrated result of Ajtai, Komlos and Szemeredi and independently of Bollobas on the usual random graph. We are also able to deduce very precise information on the limiting probability that the random geometric graph is Hamiltonian analogous to a result of Komlos and Szemer{e}di on the usual random graph. The proof generalizes to uniform random points on the $d$-dimensional hypercube where the edge-lengths are measured using the $l_p$-norm for some $1<pleqinfty$. The proof can also be adapted to show that, with probability tending to 1 as the number of points $n$ tends to $infty$, there are cycles of all lengths between 3 and $n$ at the moment the graph loses its last vertex of degree less than two." @default.
- W1959654927 created "2016-06-24" @default.
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- W1959654927 date "2009-05-30" @default.
- W1959654927 modified "2023-09-27" @default.
- W1959654927 title "Hamiltonicity of the random geometric graph" @default.
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