Compositio Mathematica, Tome 54 (1985) no. 1

Sommaire

Picard groups of Zariski surfaces

p. 3-36

Appendix : “Picard groups of Zariski surfaces”

Blass, Piotr ; Lang, Jeffrey

p. 37-40

The cardinality of the set of invariant means on a locally compact topological semigroup

Dzinotyiweyi, Heneri A. M.

p. 41-49

A common abstraction of boolean rings and lattice ordered groups

Schmidt, Klaus D.

p. 51-62

Stably free, projective right ideals

Stafford, J. T.

p. 63-78

Zur Existenz einer Steinschen Umgebung eines abgeschlossenen Steinschen Unterraums

Bartenwerfer, Wolfgang

p. 79-93

Covering spaces of an elliptic surface

Gurjar, R. V. ; Shastri, A. R.

p. 95-104

Monodromy of functions defined on isolated singularities of complete intersections

Dimca, Alexandru

p. 105-119