Volume 132, Issue 1, July 1990

$L_2$-cohomology of arithmetic varieties

Pages 1-69 by Leslie Saper, Mark Stern

Distortion of S-unimodal maps

Pages 71-130 by John Guckenheimer, Stewart Johnson

Higher regulators and Hecke $L$-series of imaginary quadratic fields II

Pages 131-158 by Christopher Deninger

Tensor powers of the Carlitz module and zeta values

Pages 159-191 by Greg W. Anderson, Dinesh S. Thakur