Irish Mathematical Society

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BULLETIN Number 71 Summer 2013

ISSN 0791-5578

Contents

Editorial

Notices from the Society

• Officers and Local Representatives 1
• Applying for IMS Membership 2

Article on Policy

• Richard M. Timoney:
  Why we need Mathematics in the RPE era, 5-12

Mathematical Articles

• Stephen M. Buckley and Des MacHale:
  Conjugacy deficiency in finite groups, 13-19
• Matthew Aivazian and Mike Krebs:
  Expander families, group structure, and semidirect products, 21-30
• Savvas Papapanayides:
  The tensor product of a CSL and an ABSL, 33-39

Mathematics Education

• Jon Davis:
  Examining reasoning-and-proving in the treatment of complex numbers in Irish secondary mathematics textbooks, 41-57

Classroom Note

• David Malone:
  To what does the harmonic series converge?, 59-66

Book Reviews

• Peter Lynch:
  Jeremy Gray: Henri Poincaré A Scientific Biography, 67-70
• Michael Brennan:
  David Wells: Games and Mathematics: Subtle Connections, 71-73
• Tom Carroll:
  Alan Baker: A Comprehensive Course in Number Theory, 74-75

Problem Page, 77-81
Edited by Ian Short