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Which doubly stochastic matrices can be written as products of pairwise averaging matrices?

oct 1 10 at 3:14 angela 225●9

 
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matrices self-adjoint with respect to some inner product

aug 15 10 at 9:03 Federico Poloni 4,400●1●12●25

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A geometric interpretation of independence?

feb 26 10 at 16:46 Tom LaGatta 4,340●6●19