This article is a revised version of notes on an advanced course given in Liverpool from
January to March 1977 in preparation for the symposium. The lectures given by Terry Wall at …

Steve Gersten asked me to give a talk like Hilbert gave in Paris in 1900. I said Pd be happy
to, but pointed out that Pm no Hilbert. Merzlyakov [117] came to my rescue with the following …

In recent years, many students have been introduced to topology in high school
mathematics. Having met the Mobius band, the seven bridges of Konigsberg, Euler's …

The work of Max Dehn (1878-1952) has been quietly influential in mathematics since the
beginning of the 20th century. In 1900 he became the first to solve one of the famous Hilbert …

To the uninitiate in matters of combinatorial analysis situs the first two of these books on
topology will seem hardly to deal with the same subject, so completely do they complement …

These notes were prepared for use by the participants in the Workshop on Algebra,
Geometry and Topology held at the Australian National University, 22 January to 9 February …

Invariants and Pictures : Groups. Small Cancellations. Greendlinger Theorem Page 1 PART 1
Introduction Page 2 This page intentionally left blank Page 3 Chapter 1 Groups. Small …

In the first four sections of this chapter the law of composition of a group will generally be
written multiplicatively, and e shall denote the identity element; translation of results into …

This paper was motivated by the following natural question posed to the authors by Prof. R~
itz of the Mathematical Institute of the University of Bern and independently by Prof. Robert …

Groups and geometry are ubiquitous in mathematics, groups because the symmetries (or
automorphisms (??)) of any mathematical object in any context form a group and geometry …