1,858 research outputs found
The miracle as a randomization device: a lesson from Richard Wagner's romantic opera Tannhauser und der Sankerkrieg auf Wartburg
In this paper we provide textual evidence on the sophistication of medieval deterrence
strategies. Drawing on one of the great opera librettos based on medieval sources, Wagner’s
Tannhäuser, we shall illustrate the use of optimal randomization strategies that can be derived
by applying notions of dominance or trembling-hand perfection. Particular attention is paid to
the employed randomization device
Magic numbers in the discrete tomography of cyclotomic model sets
We report recent progress in the problem of distinguishing convex subsets of
cyclotomic model sets by (discrete parallel) X-rays in prescribed
-directions. It turns out that for any of these model sets
there exists a `magic number' such that any two
convex subsets of can be distinguished by their X-rays in any set
of prescribed -directions. In particular, for
pentagonal, octagonal, decagonal and dodecagonal model sets, the least possible
numbers are in that very order 11, 9, 11 and 13.Comment: 6 pages, 1 figure; based on the results of arXiv:1101.4149 [math.MG];
presented at Aperiodic 2012 (Cairns, Australia
Spatial Voting with Endogenous Timing
voting;political economy;games;general equilibrium
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