Contents
The trace on the A'-theory of group C*-algebras
THOMAS SCHICK 1
Base change and a problem of Serre
C. M. SKINNER and A. J. WILES 15
Beltrami operators in the plane
KARI ASTALA, TADEUSZ IWANIEC, and EERO SAKSMAN 27
Geometry of stationary sets for the wave equation in 1R":
The case of finitely supported initial data
MARK L. AGRONOVSKY and ERIC TODD QUINTO 57
A generalization of conjectures of Bogomolov and Lang over finitely generated fields
ATSUSHI MORIWAKI 85
103
135
159 On an exact masis formula of Shimura
WEE TECK GAN,'JONATHAN P. HANKE, and JIU-KANG YU
Curvature, diameter, homotopy groups, and cohomology rings
FUQUAN FANG and XIAOCHUN RONG
Finite linear groups and bounded generation MARTIN W. LIEBECK and L. R^BER
The residual index and the dynamics of holomorphic maps tangent to the identity
MARCO ABATE 173