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Questions
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Collisions between rooks taking random flights on an $N$ by $M$ chessboard

jan 26 at 17:26 Mathematical Intuitionist 1●5

 
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Covering a $d$-dimensional integer lattice by repeating a minimal set of deterministic moves

sep 25 at 23:16 Sergei Ivanov 22.7k●46●95

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A discrete random walk that avoids previously visited vertices for an exponentially distributed time interval

sep 16 at 10:01 Vincent Beffara 1,011●3●5