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L'Enseignement Mathématique

L'Enseignement Mathématique Volume 38 (1992)
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Issue 1-2: L'ENSEIGNEMENT MATHÉMATIQUE
Front matter
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Table of Contents
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1
Front matter
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2
Article UNE REMARQUE SUR LE SPECTRE DES SOLUTIONS MATRICIELLES DE L'ÉQUATION DE RICCATI
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Bibliography
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Article THE MEAN SQUARE OF THE RIEMANN ZETA-FUNCTION ON THE LINE σ = 1
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Abstract
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Rubric
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Bibliography
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Article THE CATEGORY OF NILMANIFOLDS
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Abstract
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Chapter Introduction
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Chapter §1. Category
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Chapter §2. Rational homotopy and category
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Chapter §3. NILMANIFOLDS
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Chapter §4. Category of nilmanifolds
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Chapter §5. HIGHER DEGREE ANALOGUES
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Chapter §6. Ganea's conjecture
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Bibliography
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Article PERMUTATION GROUPS GENERATED BY A TRANSPOSITION AND ANOTHER ELEMENT
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Abstract
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Chapter 1. A GRAPH FOR A SUBGROUP CONTAINING A TRANSPOSITION
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Chapter 2. An application to Galois theory
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Chapter 3. TWO GENERATOR SUBGROUPS OF Sym(n)
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Bibliography
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Article ACTIONS QUASI-LINÉAIRES SUR LES SPHÈRES
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Chapter Introduction
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Chapter 2. G-COBORDISMES D'ACTIONS
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Chapter 3. Actions libres – Résultats généraux
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Chapter 4. Actions libres d'un groupe cyclique fini
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Chapter 5. Actions libres de $S^1$
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Chapter 6. Actions libres de $S^3$
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Chapter 7. Exemples d'actions quasi linéaires
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Bibliography
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Article POLYÈDRES ET RÉSEAUX
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Chapter 0. Introduction
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Chapter 1. Fonctions caractéristiques
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Chapter 1.1. Polynômes et séries de Laurent
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Chapter 1.2. Fonctions caractéristiques de cônes et polyèdres
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Chapter 2. Identités entre fonctions caractéristiques
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Chapter 2.1 Un propriété d'additivité
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Chapter 2.2. Polyèdres et fonctions d'appui
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Chapter 2.3. Fonctions caractéristiques de polyèdres ouverts
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Chapter 2.4. Fonctions caractéristiques pondérées
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Chapter 3. Propriétés énumératives des polytopes convexes entiers
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Chapter 3.1. Comportement polynomial de fonctions de comptage
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Chapter 3.2. Loi de réciprocité
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Chapter 3.3. Le cas d'un polytope rationnel
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Bibliography
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Article LA NON-DÉRIVABILITÉ DE LA FONCTION DE WEIERSTRASS
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Chapter 1. Propriétés de Lipschitz de la fonction de Weierstrass
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Chapter 2. Cas où b est un entier impair
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Chapter 3. Cas général
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Chapter 4. Conclusion
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Bibliography
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Article COMPLEX GROWTH SERIES OF COXETER SYSTEMS
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Chapter 1. Introduction
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Chapter 2. Complex growth series
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Bibliography
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Article EMMY NOETHER: HIGHLIGHTS OF HER LIFE AND WORK
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Chapter A. Her life
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Chapter B. Her work
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Chapter Invariant theory
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Chapter Commutative algebra
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Chapter Noncommutative algebra and representation theory
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Chapter Applications of noncommutative to commutative algebra
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Chapter C. Her legacy
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Bibliography
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Article SIMPLE PROOF OF A THEOREM OF THUE ON THE MAXIMAL DENSITY OF CIRCLE PACKINGS IN $E^2$
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Chapter Introduction
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Chapter Local cell and local density
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Chapter Remark on the uniqueness of the finite packings of maximal density
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Bibliography
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Article AN ANALOGUE OF HUBER'S FORMULA FOR RIEMANN'S ZETA FUNCTION
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Chapter 1. Introduction
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Chapter 2. OUTLINE OF THE LECTURE
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Bibliography
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Article REAL NUMBERS WITH BOUNDED PARTIAL QUOTIENTS: A SURVEY
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Abstract
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Chapter 1. Introduction and Definitions
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Chapter 2. Numbers of Constant Type
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Chapter 3. The Metric Theory of Continued Fractions
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Chapter 4. Continued Fractions for Algebraic Numbers
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Chapter 5. Certain Sums in Diophantine Approximation
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Chapter 6. Fractal Geometry
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Chapter 7. Schmidt's Game
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Chapter 8. Hall's theorem
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Chapter 9. EXPLICIT EXAMPLES OF TRANSCENDENTAL NUMBERS WITH BOUNDED PARTIAL QUOTIENTS
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Chapter 10. "Quasi-Monte-Carlo" Methods and Zaremba's Conjecture
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Chapter 11. Properties of the sequence nθ (mod 1)
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Chapter 12. Discrepancy and Dispersion
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Chapter 13. Connections with Ergodic Theory
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Chapter 14. PSEUDO-RANDOM NUMBER GENERATION
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Chapter 15. FORMAL LANGUAGE THEORY
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Chapter 16. Other Results
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Chapter 17. Related Results
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Chapter 18. ACKNOWLEDGMENTS
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Bibliography
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Rubric COMMISSION INTERNATIONALE DE L'ENSEIGNEMENT MATHÉMATIQUE (THE INTERNATIONAL COMMISSION ON MATHEMATICAL INSTRUCTION)
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Chapter GENDER AND MATHEMATICS EDUCATION Key issues and questions Discussion Document for an ICMI Study
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Chapter 1. Rationale for the study
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Chapter 2. Factors generating gender inequities in mathematics
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Chapter 3. Manifestations of gender inequities
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Chapter 4. FOCI FOR CHANGE
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Chapter 5. Call for papers
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Bibliography
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Rubric BULLETIN BIBLIOGRAPHIQUE
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Back matter
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Back matter
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Back matter
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Back matter
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Issue 3-4: L'ENSEIGNEMENT MATHÉMATIQUE
Front matter
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Table of Contents
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Front matter
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Article KREISPACKUNGEN UND TRIANGULIERUNGEN
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Preface 1. EINLEITUNG
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Chapter 2. VORBEREITUNGEN
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Chapter 3. Die funktion L: W → R
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Chapter 4. IMMERSIERTE KREISPACKUNGEN
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Chapter 5. Randwinkel
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Bibliography
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Article POLYNÔMES HOMOGÈNES RÉELS AVEC GRADIENT À SINGULARITÉ ISOLÉE
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Abstract
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Chapter 1. Introduction
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Chapter 2. Exemples et cas particuliers
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Chapter 3. Enoncés des résultats
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Chapter 4. Preuves
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Bibliography
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Article NOTES SUR L'INVARIANT DE CASSON DES SPHÈRES D'HOMOLOGIE DE DIMENSION TROIS
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Chapter 1. Enoncé des résultats
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Chapter 2. DÉMONSTRATION DE LA PROPOSITION (1.3)
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Chapter 3. Construction de l'invariant de Casson
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Chapter 4. DÉMONSTRATION DES PROPRIÉTÉS 1) ET 2) DE L'INVARIANT DE CASSON
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Appendix Appendice A Polynôme d'Alexander et forme quadratique d'un entrelacs orienté: Formule de Conway et invariant de Robertello
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Appendix Appendice B L'INVARIANT DE CASSON D'UN NŒUD DE GENRE 1 À SURFACE DE SEIFERT DÉNOUÉE
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Chapter I. Représentations irréductibles d'un groupe libre À DEUX GÉNÉRATEURS
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Chapter II. Un ouvert de représentations irréductibles DU GROUPE FONDAMENTAL D'UNE SURFACE DE GENRE 2
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Chapter III. DÉMONSTRATION DU THÉORÈME B.l
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Appendix Appendice C Un calcul élémentaire de l'invariant de Casson des sphères d'homologie entière fibrées de Seifert à trois fibres exceptionnelles
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Chapter §0. Introduction
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Chapter §1. Présentation des espaces et énoncé du théorème
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Chapter §2. Scindement de Heegaard de $\Sigma(a_1,a_2,a_3)$
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Bibliography
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Article AUTOMATIC GROUPS: A GUIDED TOUR
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Chapter 1. Background in geometric group theory
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Chapter 2. The beginnings of automatic groups
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Chapter 3. Finite state automata
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Chapter 4. Automatic groups : definitions and examples
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Chapter 5. Hyperbolic groups are automatic
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Chapter 6. INTERESTING PROPERTIES
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Chapter 7. Related topics, open problems, and a vision of the future
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Bibliography
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Article TOEPLITZ SEQUENCES, PAPERFOLDING, TOWERS OF HANOI AND PROGRESSION-FREE SEQUENCES OF INTEGERS
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Abstract
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Chapter 1. Toeplitz sequences
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Chapter 2. Paperfolding sequences and Toeplitz transforms
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Chapter 3. Iteration of continuous functions and Toeplitz transforms
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Chapter 4. Towers of Hanoi and Toeplitz sequences
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Chapter 5. Progression-free sequences and Toeplitz sequences
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Chapter 6. MISCELLANEOUS QUESTIONS
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Bibliography
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Article RATIONALITY OF PIECEWISE LINEAR FOLIATIONS AND HOMOLOGY OF THE GROUP OF PIECEWISE LINEAR HOMEOMORPHISMS
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Chapter Introduction
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Chapter §1. Lemmas
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Chapter §2. Discontinuous invariants
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Chapter §3. Homology of the group of piecewise linear homeomorphisms
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Chapter §4. Construction of cocycles of the group $PL_c(R)$
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Chapter §5. SURJECTIVITY OF $(j_+)_\star$
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Bibliography
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Article BARKER SEQUENCES AND DIFFERENCE SETS
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Chapter Introduction
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Chapter 0. Preliminaries
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Chapter 1. DIFFERENCE SETS
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Chapter 2. Periodic Barker sequences
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Chapter 3. Barker sequences
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Chapter 4. The use of the Multiplier Theorem
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Chapter 5. COMMENTS ON THE EXAMPLES IN TABLES II
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Bibliography
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Rubric BULLETIN BIBLIOGRAPHIQUE
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Front matter
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Index
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Back matter
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Back matter
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Back matter
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