Convex polytopes are the analogues in space of any dimension of convex plane polygons and of convex polyhedra in ordinary space. This book describes a fresh approach to the classification of these objects according to their symmetry properties, based on ideas of topology and transformation group theory. Although there is considerable agreement with traditional treatments, a number of new concepts emerge that present classical ideas in a quite new way. For example, the family of regular convex polytopes is extended to the family of 'perfect polytopes'. Thus the familiar set of five Platonic...
Convex polytopes are the analogues in space of any dimension of convex plane polygons and of convex polyhedra in ordinary space. This book describes a...
Human ecology is ultimately part of a general theory of society. This is the argument developed here by Roy Ellen, whose exploration of the interplay between social organization and ecology in small-scale subsistence systems has direct bearings both on the investigation of human environmental relations in general and on contemporary social theory. He argues that while ecological study of non-industrial societies cannot be elevated to the status of theory, domain or discipline, it can be represented as a single 'problematic' that historically has acquired some degree of autonomy and which...
Human ecology is ultimately part of a general theory of society. This is the argument developed here by Roy Ellen, whose exploration of the interplay ...
This book contains selected papers from the international conference 'Groups - St Andrews 1981', which was held at the University of St Andrews in July/August 1981. Its contents reflect the main topics of the conference: combinatorial group theory; infinite groups; general groups, finite or infinite; computational group theory. Four courses, each providing a five-lecture survey, given by J. Neubuser (Aachen), D. J. S. Robinson (Illinois), S. J. Tobin (Galway) and J. Wiengold (Cardiff), have been expanded into articles, forming the first part of the book. The second part consists of surveys...
This book contains selected papers from the international conference 'Groups - St Andrews 1981', which was held at the University of St Andrews in Jul...
The core model, K, is a generalization of Godel's constructible universe of set theory; K is used to produce 'fine structural' results of a less restrictive kind. This book aims to introduce the core model to those with a basic knowledge of axiomatic set theory. The covering lemma for K is the main technical result but other applications are also considered. The author gives a full exposition of general fine structure and of iterated ultrapowers and concludes the work with a short section on the difficulties encountered in constructing more general core models using 'extenders'."
The core model, K, is a generalization of Godel's constructible universe of set theory; K is used to produce 'fine structural' results of a less restr...
For a number of years, French mathematicians have run regular number theory conferences to which they have invited number theorists from many countries. To repay their hospitality, the London Mathematical Society arranged for the 1980 'Journees Arithmeiques' to be held in Exeter. The papers published here are either based on the main invited lectures or on selected research talks given at the conference. They cover all branches of the subject: combinatorial and elementary methods; analytic number theory; transcendence theory; Galois module theory and algebraic number theory in general;...
For a number of years, French mathematicians have run regular number theory conferences to which they have invited number theorists from many countrie...
This book comprises five expository articles and two research papers on topics of current interest in set theory and the foundations of mathematics. Articles by Baumgartner and Devlin introduce the reader to proper forcing. This is a development by Saharon Shelah of Cohen's method which has led to solutions of problems that resisted attack by forcing methods as originally developed in the 1960s. The article by Guaspari is an introduction to descriptive set theory, a subject that has developed dramatically in the last few years. Articles by Kanamori and Stanley discuss one of the most...
This book comprises five expository articles and two research papers on topics of current interest in set theory and the foundations of mathematics. A...