On the regularity of characteristic functions W. Sickel Conference on the Theory of Functions of Several Real Variables, dedicated to the 90th anniversary of O. V. Besov May 29, 2023 12:30
The Smolyak Algorithm and Sampling Numbers W. Sickel International conference "Nonlinear Approximations and Applications" dedicated to the 60th birthday of Professor V. N. Temlyakov October 29, 2013 16:05