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- Steve Alpern, Robbert Fokkink, T. F. Lidbetter, Nicola S. Clayton
- Journal of the Royal Society, Interface
- 2012

Scatter hoarders are animals (e.g. squirrels) who cache food (nuts) over a number of sites for later collection. A certain minimum amount of food must be recovered, possibly after pilfering by another animal, in order to survive the winter. An optimal caching strategy is one that maximizes the survival probability, given worst case behaviour of the… (More)

We introduce a natural variant of the parallel chip-firing game, called the diffusion game. Chips are initially assigned to vertices of a graph. At every step, all vertices simultaneously send one chip to each neighbour with fewer chips. Although the parallel chip-firing game is inherently periodic as the dynamics occur on a finite set, the diffusion game… (More)

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