JOURNAL OF PURE AND APPLIED ALGEBRA VOLUME 111, NUMBERS 1-3, 26 AUGUST 1996 Abstracted/Indexed in: Current Contents: Physical, Chemical & Earth Sciences, Mathematical Reviews, PASCAL, Science Citation Index, Zentralblatt fur Mathematik. CONTENTS M. Barr *«-Autonomous categories, revisited A. Broido An exterior product identity for Schur functions M. Catalano Stable splittings of BP for some P of order thirty-two D. Daigle On pencils of polynomial curves P. Dehornoy The structure group for the associativity identity P.G. Goerss The homology of homotopy inverse limits K.R. Goodearl and T.H. Lenagan Catenarity in quantum algebras G.D. Henderson Hopf algebra extensions of monogenic Hopf algebras |. Hozo inclusion of poset homology into Lie algebra homology K.-Hutchinson Hecke actions on the K-theory of commutative rings Liu Zhongkui Monoids over which all flat left acts are regular M.L. Mihalik Semistability of Artin and Coxeter groups D. Juan-Pineda Cohomological nonvanishing for modules over discrete groups F. Point and P. Wantiez Nilpotency criteria for multiplicative Lie algebras A. Robinson and S. Whitehouse The tree representation of £,,. , J.S. Okon, D.E. Rush and P. Vicknair Two-generated ideals in non-Noetherian semigroup rings N. Shell Discrete rings A. Silverberg and Yu.G. Zarhin Variations on a theme of Minkowski and Serre J.H. Silverman Multiplication and combinatorics in the Steenrod algebra D.V. Huynh, S.T. Rizvi and M.F. Yousif Rings whose finitely generated modules are extending Author index Keep track of recently published papers via the journal’s home page on the WWW: http://www.elsevier.ni/locate/jpaa 4049(19960826)111 : 1-3; 1-C JOURNAL OF PURE AND APPLIED ALGEBRA VOLUME 111, NUMBERS 1-3, 26 AUGUST 1996 Abstracted/Indexed in: Current Contents: Physical, Chemical & Earth Sciences, Mathematical Reviews, PASCAL, Science Citation Index, Zentralblatt fur Mathematik. CONTENTS M. Barr *«-Autonomous categories, revisited A. Broido An exterior product identity for Schur functions M. Catalano Stable splittings of BP for some P of order thirty-two D. Daigle On pencils of polynomial curves P. Dehornoy The structure group for the associativity identity P.G. Goerss The homology of homotopy inverse limits K.R. Goodearl and T.H. Lenagan Catenarity in quantum algebras G.D. Henderson Hopf algebra extensions of monogenic Hopf algebras |. Hozo inclusion of poset homology into Lie algebra homology K.-Hutchinson Hecke actions on the K-theory of commutative rings Liu Zhongkui Monoids over which all flat left acts are regular M.L. Mihalik Semistability of Artin and Coxeter groups D. Juan-Pineda Cohomological nonvanishing for modules over discrete groups F. Point and P. Wantiez Nilpotency criteria for multiplicative Lie algebras A. Robinson and S. Whitehouse The tree representation of £,,. , J.S. Okon, D.E. Rush and P. Vicknair Two-generated ideals in non-Noetherian semigroup rings N. Shell Discrete rings A. Silverberg and Yu.G. Zarhin Variations on a theme of Minkowski and Serre J.H. Silverman Multiplication and combinatorics in the Steenrod algebra D.V. Huynh, S.T. Rizvi and M.F. Yousif Rings whose finitely generated modules are extending Author index Keep track of recently published papers via the journal’s home page on the WWW: http://www.elsevier.ni/locate/jpaa 4049(19960826)111 : 1-3; 1-C