Contemporary Mathematics 1992; 394 pp; softcover Volume: 130 ISBN10: 082185142X ISBN13: 9780821851425 List Price: US$60 Member Price: US$48 Order Code: CONM/130
 This collection of research papers is dedicated to the memory of the distinguished algebraist Robert B. Warfield, Jr. Focusing on abelian group theory and noncommutative ring theory, the book covers a wide range of topics reflecting Warfield's interests and includes two articles surveying his contributions to mathematics. Because the articles have been refereed to high standards and will not appear elsewhere, this volume is indispensable to any researcher in noncommutative ring theory or abelian group theory. With papers by some of the major leaders in the field, this book will also be important to anyone interested in these areas, as it provides an overview of current research directions. Table of Contents Robert Breckenridge Warfield, Jr.  C. Vinsonhaler  The abelian group papers of Robert B. Warfield, Jr.
 K. R. Goodearl and J. T. Stafford  Warfield in ring theory
 U. Albrecht  Endomorphism rings, tensor products, and Fuchs' problem 47
 R. Behler, R. Göbel, and R. Mines  Endomorphism rings of \(p\)groups having length cofinal with \(\omega\)
 A. D. Bell  Skew differential operators on commutative rings
 G. M. Bergman  Isomorphisms from top to bottom
 A. Braun  Power intersection in Noetherian P.I. rings
 K. A. Brown and M. Lorenz  Colimits of functors and Grothendieck groups of infinite group algebras
 P. M. Cohn  Modules over hereditary rings
 A. van den Essen and A. H. M. Levelt  An explicit description of all simple \(k[[x]][\partial]\)modules
 L. Fuchs and C. Metelli  Countable Butler groups
 K. R. Goodearl  An unbounded localizable clique
 I. Herzog  The AuslanderReiten translate
 B. Z. Huisgen  On the abundance of \(\aleph_1\)separable modules
 R. S. Irving  Graded BGG algebras
 D. A. Jordan  Krull and global dimension of certain iterated skew polynomial rings
 G. Krause  Prime factor series of modules over a Noetherian algebra
 T. H. Lenagan  Enveloping algebras of solvable Lie superalgebras are catenary
 E. S. Letzter  Prime and primitive ideals in enveloping algebras of solvable Lie superalgebras
 W. May  Endomorphism algebras of not necessarily cotorsionfree modules
 J. C. McConnell and R. B. Warfield, Jr.  Direct sum decompositions of vector spaces equipped with linear and bilinear forms
 G. O. Michler  Maximal orders and deformations of modular group algebras
 R. Mines and C. Vinsonhaler  Butler groups and Bext: A constructive view
 B. J. Müller  Goldieprime serial rings
 J. Osterburg, D. S. Passman, and D. Quinn  A Connes spectrum for Hopf algebras
 R. S. Pierce  Minimal regular rings
 C. E. Praeger and P. Schultz  The Loewy length of the Jacobson radical of a bounded endomorphism ring
 J. D. Reid  Warfield duality and irreducible groups
 F. Richman  The constructive theory of countably generated Warfield modules
 D. J. Saltman  A note on generic division algebras
