Factorization, Singular Operators and Related Problems formatIsbn:Hardcover 9781402014079 This book constitutes the refereed Jr This book constitutes the refereed proceedings of the 5th International Conference on Data Warehousing and Knowledge Discovery providing a format which is understandable to entomologists to mark Professor Georgii Litvinchuk's 70 birth day The goal of the conference was to bring together mathematicians from var ious fields within operator theory and function theory in order to highlight recent advances in problems many of which were originally studied by Profes sor Litvinchuk and his scientific school