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math.DS2011
Norm convergence of nilpotent ergodic averages
Miguel N. Walsh
We show that multiple polynomial ergodic averages arising from nilpotent groups of measure preserving transformations of a probability space always converge in the L^2 norm.
math.NT2011★ 6 cited
The inverse sieve problem in high dimensions
Miguel N. Walsh
We show that if a big set of integer points in [0,N]^d, d>1, occupies few residue classes mod p for many primes p, then it must essentially lie in the solution set of some polynomi…