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117
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
We describe an algorithm to compute the geodesics in an arbitrary CAT(0) cubical complex. A key tool is a correspondence between cubical complexes of global non-positive curvature ...
133
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
—In this paper we establish the log-convexity of the rate region in 802.11 WLANs. This generalises previous results for Aloha networks and has immediate implications for optimisa...
CORR
2011
Springer
14 years 10 months ago
2011
Springer
We consider the extension of the last-in-first-out graph searching game of Giannopoulou and Thilikos to digraphs. We show that all common variations of the game require the same ...
103
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
Abstract. Motivated by multiplication algorithms based on redundant number representations, we study representations of an integer n as a sum n = k εkUk, where the digits εk are ...
102
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
We cryptanalyse a matrix-based key transport protocol due to Baumslag, Camps, Fine, Rosenberger and Xu from 2006. We also cryptanalyse two recently proposed matrix-based key agree...