The adaptation problem for nonsymmetric convex sets
The author continues his work on optimal recovery and \(n\)-widths for classes of convex functions presenting the adaption problem for nonsymmetric convex sets. He proposes new inequalities between Gelfand widths and Bernstein widths and new relations between these widths and optimal error bounds for adaptive and nonadaptive methods. An open problem list is also added.
scientific article; zbMATH DE number 782147