Since Poincaré's time, topologists have been most concerned with three
species of manifold. The most primitive of these--the TOP
manifolds--remained rather mysterious until 1968, when Kirby discovered
his now famous torus unfurling device. A period of rapid progress with
TOP manifolds ensued, including, in 1969, Siebenmann's refutation of the
Hauptvermutung and the Triangulation Conjecture. Here is the first
connected account of Kirby's and Siebenmann's basic research in this
area.
The five sections of this book are introduced by three articles by the
authors that initially appeared between 1968 and 1970. Appendices
provide a full discussion of the classification of homotopy tori,
including Casson's unpublished work and a consideration of periodicity
in topological surgery.