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Cokernels of random matrices satisfy the Cohen-Lenstra heuristics (1301.1239v2)
Published 7 Jan 2013 in math.CO
Abstract: Let A be an n by n random matrix with iid entries taken from the p-adic integers or Z/NZ. Then under mild non-degeneracy conditions the cokernel of A has a universal probability distribution. In particular, the p-part of an iid random matrix over the integers has cokernel distributed according to the Cohen-Lenstra measure up to an exponentially small error.
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