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The American Mathematical Monthly Volume 120, 2013 - Issue 4
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NOTES

Illuminating a Network from Its Nodes

Steve AlpernWarwick Business School, University of Warwick, CoventryCV47AL, [email protected]
&
Robbert Fokkink Delft Institute of Applied Mathematics, TU Delft, PO Box 5031, 2600 GADelft, [email protected]
Pages 358-359 | Published online: 13 Dec 2017
 
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Abstract

A network is to be illuminated by placing lights at the nodes, so that each edge is bright enough and the total intensity is minimized. A folk result says this can always be done using lamps that have half or full intensity. We give a new elementary proof.

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