ON FINITE RATIONAL GROUPS AND RELATED TOPICSt Page 1 ILLINOIS JOURNAL OF
MATHEMATICS Volume 33, Number 1, Spring 1988 ON FINITE RATIONAL GROUPS AND …

1. Lee C be a commutative field and Kj C be a field extension. It is well known that
derivations of C can be extended to K, and the extension is unique if K/C is separable. We …

We investigate the group of automorphisms Aut (ℚ G) of a rational group algebra ℚ G of a
finite metacyclic group G by first describing the simple components of the Wedderburn …

An action of the automorphism group of a commutative ring on its Brauer group Page 1 Pacific
Journal of Mathematics AN ACTION OF THE AUTOMORPHISM GROUP OF A COMMUTATIVE …

Let Aut (QG) denote the automorphism group of the rational group algebra QG for a group G.
The goal of this paper is to determine the structure of. 4ut (QC;) for certain finite metacyclic …

Let A be a unital associative algebra over a field k, E a vector space and π: E→ A a
surjective linear map with V= Ker (π). All algebra structures on E such that π: E→ A becomes …

The topic of this work is the Brauer group of a commutative ring. Recent investigations have
yielded generalizations of this invariant in several directions; herein we wish to propose …

Amitsur I21 proved (1) to be false in general. However, Herstein proved (1) for division rings
of non-zero characteristic. We therefore restrict our attention to fields of characteristic zero …

This survey mainly covers material abstracted in the Referativnyi Zhurnal Matematika during
the period 1977–1983 and is a continuation of earlier surveys on the same subject, the …

This paper draws a CC~ IU~~-= ction between a recent paper of DeMeyer [2] and an
independent paper by Roggenkamp and Scott [!! I In [Z] DeMeyer extends an~ earlier result …