Volume 93, Issue 2, March 1971

Isolated singularities of algebraic surfaces with $\mathbf{C}^\ast$ action

Pages 205-228 by Peter Orlik, Philip Wagreich

Cobordism of regular $O(n)$-manifolds

Pages 229-251 by Connor Lazarov, Arthur Wasserman

On Schanuel’s conjectures

Pages 252-268 by James Ax

On the inverse problem in the Galois theory of differential fields. II.

Pages 269-284 by Jerald Kovacic

Interpolation and embedding in the recursively enumerable degrees

Pages 285-314 by Robert W. Robinson

Formal cohomology. III. Fixed point theorems

Pages 315-343 by Paul Monsky

Duality and subgroups

Pages 344-364 by Masamichi Takesaki, Nobuhiko Tatsuuma

Initial segments of the degrees of unsolvability

Pages 365-389 by Manuel Lerman

On seminorms and probabilities, and abstract Wiener spaces

Pages 390-408 by Richard Mansfield Dudley, Jacob Feldman, Lucien Le Cam