COMMUNICATIONS IN ALGEBRA®
Volume 31, Number 7, 2003
CONTENTS
A Description of Ideals in Noetherian R i n g s . . . 3039
L. Cdceres-Duque and G. C. Nelson
A Category of Pseudo-tangles with Classifying Space Q"0^00
and A p p l i c a t i o n s . . . 3061 0. Blomer
Combinatorial Tangent Space and Rational Smoothness
of Schubert Varieties. . . . 3111 S. Gaussent
Semi-algebraic Absolute Valued Algebras with an Involution . . . . 3135 M. L. El-Mallah
The ^.-Dimension of Commutative Arithmetic Rings . . . 3143 F. Couchot
Polynomials Contained in a Finite Number of Maximal
Ideals . . . 3159 P. K. Sharma
Modules with RD-Composition Series over a Commutative
Ring . . . 3171 F. Couchot
Witt Rings of Global Fields . . . 3195 A. Czogala and A. Sladek
Some Results on Hypercentral Units in Integral Group
Rings. . . . 3207 V. Li and M. M. Parmenter
Graded Endomorphism Rings and Equivalences. . . . 3219 A. Marcus and C. Modoi
The Structure of Ext for Torsion-Free Modules of Finite
Rank over Dedekind Domains . . . 3251 H. P. Goefers
vi Contents
Mori Domains Whose Primary /-Ideals Are Valuation
Ideals . . . 3265 G. W. Chang and J . Park
An Equivalence of Categories for Lie Color Algebras . . . 3271
V. Ulm
On Solvable R* Groups of Finite Rank . . . 3287 A. Rhemtulla and H. Smith
Clean Semiprime/-Rings with Bounded Inversion . . . 3295 W. Wm. McGovern
Group Identities and Prime Rings Generated by Units. . . . 3305 T.-K. Lee and C.-H. Liu
Prime Rings Whose Units Satisfy a Group Identity. II . . . 3311 5". Mauceri and P. Misso
On Disjoint Sets of Natural Classes . . . 3319 H. Lee and P. L. Vachuska
Tits-Kantor-Koecher Superalgebras of Jordan Superpairs
Covered by Grids . . . 3335 E. Garcia and E. Neher
Elementary Divisors of Gram Matrices of Certain Specht
Modules. . . . 3377 M. Klinzer and G. Nebe
On Standardly Stratified Algebras . . . 3429 K. Erdmann and C. Sdenz
The McKay-Thompson Series of Some Elements of Order
3, 5, and 7 in the Monster . . . 3447 S. Sakuma
The Existence of/»-Blocks with a Submaximal-Subgroup
of a Sylow /^-Subgroup as Defect Group . . . 3463 L.-Z. Wang
Unique Node Extremal Subgroups in Chevalley G r o u p s . . . 3471 C. Parker and P. Rowley
The Analytic Spread of Monomial I d e a l s . . . 3487 C. Bivid-Ausina
The Coexponent of a Finite p - G r o u p . . . 3497 H. Bai, Y. Ma, and J . Zhang
Contents vii
Lattice Modules over Principal Element D o m a i n s . . . 3505 E. W. Johnson and J . A. Johnson
Module Correspondences for Twisted Group A l g e b r a s . . . 3519 Z. Lu
Properties of the Fiber Cone of Ideals in Local Rings . . . 3529 W. J . Heinzer and M.-K. Kim
