Volume 83 (1992) no. 3

Table of contents

Visibility cells and T-convexity spaces
p. 251-257
Regularity of the four dimensional Sklyanin algebra
p. 259-289
The dimension of the Chow variety of curves
p. 291-310
Riesz spaces and the ultrafilter theorem, I
p. 311-327
On the second exterior power of tangent bundles of threefolds
p. 329-346
Values of isotropic quadratic forms at S-integral points
p. 347-372