ppyang

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Name	ppyang
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Doubly stochastic matrices as squares of entires of unitary matrices

ra.rings-and-algebras pr.probability matrices nonnegative-matrices

mar 28 12 at 15:08 Felix Goldberg 2,385●5●12

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Covering maps on Euclidean spaces and spheres

at.algebraic-topology

mar 16 10 at 17:17 Anton Geraschenko♦♦ 13.7k●3●48●108