The character-automorphic Nehari problem: Non-uniqueness criterion and some extremal solutions
Summary: A non-uniqueness criterion for the character-automorphic Nehari problem is given. Certain subclass of solutions, connected with ``the entropy functional'' of the problem, is described. The description yields a character-automorphic counterpart of the Adamyan-Arov-Krein theorem.
scientific article; zbMATH DE number 1045989