Volume 135, Issue 1, January 1992

Train tracks and automorphisms of free groups

Pages 1-51 by Mladen Bestvina, Michael Handel

Infinite integral extensions and big Cohen–Macaulay algebras

Pages 53-89 by Melvin Hochster, Craig Huneke

The Schur index of proective characters of symmetric and alternating groups

Pages 91-124 by Alexandre Turull

$M$-sets and measures

Pages 125-130 by Robert Kaufman

Large improvements in Waring’s problem

Pages 131-164 by Trevor D. Wooley

Archimedean superrigidity and hyperbolic geometry

Pages 165-182 by Kevin Corlette

Homotopy classification of self-maps of $BG$ via $G$-actions. Part I

Pages 183-226 by Stefan Jackowski, James McClure, Bob Oliver