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Tag Archives: derangements
Finding derangements without CFSG
Nearly two years ago, I posed the problem of finding an “elementary” deterministic polynomial-time algorithm for finding a fixed-point-free element (or derangement) in a transitive permutation group. The background is that there are so many fpf elements (at least a … Continue reading
Pretty structures
I was at the Pretty Structures conference in Paris last week. The original conference in what became this sequence was called Pretty Things. Perhaps this is not serious enough for a meeting held at the Institut Henri Poincaré, I don’t … Continue reading
Posted in events, exposition
Tagged Condorcet paradox, derangements, Jack Edmonds, Kathie Cameron, Lehman matrix, Nash equilibrium, synchronization
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