Nonselfadjoin Boundary Eigenvalue Problems [North-Holland Mathematics Studies] (Hardcover) ISBN-13: 9780444514479 ISBN-10: 0444514473 Genres: Science & Math, Engineering & Transportation ? Systems and Networks Mathematical Theory and Applications Invited and Contributed Papers [Mathematical Research] (Hardcover) ISBN-13: 9783055016615 ISBN-10: 3055016610 ? |