Volume 101, Issue 1, January 1975

## Localized Alexander invariants and isotopy of links

Pages 1-19 by Dale Rolfson

## $K_i$ groups of rings of algebraic integers

Pages 20-33 by Bruno Harris, Graeme B. Segal

## Multiplier transformations of weak type

Pages 33-44 by Misha Zafran

## Finite groups with product fusion

Pages 45-87 by Daniel Gorenstein, Morton E. Harris

## Valuative criteria for families of vector bundles on algebraic varieties

Pages 88-110 by Stacy G. Langton

## The $P(\phi)_2$ Eulidean quantum field theory as classical statistical mechanics. Part I

Pages 111-189 by Francesco Guerra, Lon Rosen, Barry Simon