A Way with Words: Book 3 Student's book: Vocabulary Development Activities for Learners of English (Bk. 3) 052135921X, 9780521359214
A Way with Words is a series of learner-centred materials designed to help students increase their vocabulary and develo
570 49 2MB
English Pages 128 [256] Year 1991
Table of contents :
Cover
Title
Copyright
CONTENTS
Introduction
List of talks
Participants
SOME RECENT COMBINATORIAL APPLICATIONS OF BORSUK-TYPE THEOREMS
1. INTRODUCTION
2. DISJOINT SIMPLICES
3. SPLITTING NECKLACES
4. THE GENERAL KNESER PROBLEM
5. OPEN PROBLEMS
REFERENCES
ON EXTREMAL FINITE SETS IN THE SPHERE AND OTHER METRIC SPACES
1 HARMONICS ON Sd AND FINITE SETS IN THE SPHERE Sd
2 COMBINATORICS OF FINITE SETS IN COMPACT SYMMETRIC SPACES OF RANK 1
3 COMBINATORICS OF FINITE SUBSETS IN NON-COMPACT SYMMETRIC SPACES OF RANK ONE
4 RIGID t-DESIGNS IN Sd
REFERENCE
METRIC AND GEOMETRIC PROPERTIES OF SETS OF PERMUTATIONS
ABSTRACT
INTRODUCTION
2 Bounds for s-distance sets and groups
3 Geometric sets and groups
4 Some generalisations
5 An application
REFERENCES
INFINITE GEOMETRIC GROUPS AND SETS
1 INTRODUCTION
2 Geometric Groups
3 Geometric Sets
REFERENCES
Intersection and Containment Problems Without Size Restrictions
0. Introduction
1. The Kleitman Lemma
2. No k Pairwise Disjoint Sets
3. No k Disjoint Sets Along with Their Union
4. No Two Sets with Their Union
5. Families in which no Set is Covered by the Union of Two Others
6. Families in which no Member Contains the Intersection of Two Others
7. Union-Free Families: Uniform Case
8. Union-Free Families without Size Restrictions
References
DISTANCE-TRANSITIVE GRAPHS OF VALENCY k, 8
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