Industry Reviews During the past 10-15 years, a theory of commuting nonselfadjoint operators has been developed, which has yielded important connections with both the theory of collective motions of systems distributed continuously in space and with the theory of algebraic curves. This volume formulates the basic problems appearing in this theory and presents its main results. The volume contains 12 chapters arranged in four parts: operator vessels in Hilbert space; joint spectrum and discriminant varieties of a commutative vessel; operator vessels in Banach space; and spectral analysis of two-operator vessels. Annotation copyright Book News, Inc. Portland, Or. SciTech Book News