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math.FA2021
Removability of product sets for Sobolev functions in the plane
Tapio Rajala, Ugo Bindini
We study conditions on closed sets making the product removable or non-removable for . The main results show that the Hausdorff-dimen…
math.PR2021
Uniform approximation of continuous couplings
Ugo Bindini, Tapio Rajala
We study the approximation of non-negative multi-variate couplings in the uniform norm while matching given single-variable marginal constraints.