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physics.ao-ph2016
Source reconstruction using a bilevel optimisation method with a smooth weighted distance function
Niklas Brännström, Leif Å Persson
We consider a bilevel optimatisation method for inverse linear atmospheric dispersion problems where both linear and non-linear model parameters are to be determined. We propose th…
math.PR2016
Absolutely continuous copulas obtained by regularization of the Frechét--Hoeffding bounds
Oscar Björnham, Niklas Brännström, Leif Persson
We show that the lower and upper Frechét-Hoeffding copulas, which are singular, can be regularized to absolutely continuous copulas. The method, which is constructive and explicit,…