ABSTRACT

This study demonstrates the key manipulations surrounding Brauer groups, graded rings, group representations, ideal classes of number fields, p-adic differential equations, and rationality problems of invariant fields - displaying a command of the most advanced methods in algebra. It describes new developments in noncommutative valuation theory and

chapter |9 pages

FP-gr-injective modules and gr-FC-rings

M.J. ASENSIO, J.A. LOPEZ RAMOS, B. TORRECILLAS Departamento de Algebra y Analisis Matematico, Universidad de Almeria, 04120 Almeria, Spain There are many results of a homological nature which may be generalized from noetherian to coherent rings. In this process finitely generated modules should

chapter |3 pages

EXAMPLES.

part |1 pages

An introduction to the Galois theory for graded fields

chapter |11 pages

R\-R$ C

for every X,6 € F. As usual, the elements x of .R^ are called homogeneous of degree X. We write deg(rr) = A. Let .R is called a graded field if R ^ {0} and if every non-zero homogeneous element is invertible. In this case, TR is a group, called the grading group of R. From now on,

chapter |16 pages

Generic abelian crossed products and graded divi-sion algebras

M'HAMMED BOULAGOUAZ, KARIM MOUNIRH Sidi Mohamed Ben Abdel-

chapter |12 pages

Strictly analytic p-adic functions

KAMAL BOUSSAF Laboratoire de Mathematiques Pures, Universite Blaise Pas-

part |2 pages

[\HJ#S\] = [\S#S\] = 1

chapter |10 pages

The coradical filtration for some quantum groups

WILLIAM CHIN DePaul University, Chicago, Illinois, USA 1. INTRODUCTION

chapter |12 pages

p-zdic Differential Equations

chapter |4 pages

Orbitality and vector bundles

ences Dhar El Mehraz, B.P. 1796, Fes, Morocco

chapter |10 pages

Multiplication graded rings

JOSE ESCORIZA, BLAS TORRECILLAS Departamento de Algebra y Analisis Matematico, Universidad de Almeria, 04120 Almeria, Spain 1. INTRODUCTION In 1925, W. Krull introduced the concept of multiplication ring as a generalization of Dedekind domains. In 1981, Barnard defines the modern notion of multiplication

chapter |8 pages

A dual notion of CS-modules generalization

1. INTRODUCTION

part |1 pages

Integral representations of some p-groups

chapter |7 pages

1 -1

e GL_j(Z), 1 -I/ V i o/

chapter |12 pages

Irregular p-adic linear differential equations

1. INTRODUCTION

chapter |14 pages

H3 (G

chapter 4|15 pages

RAMIFICATION OF F(Y)/F(Y)

chapter |10 pages

A nonrational field, answering a question of Hajja

DAVID J. SALTMAN Department of Mathematics, The University of Texas,