Transactions of the AMS. Year 1967. Volume 127. Number 01.


On parabolic and umbilic points of immersed hypersurfaces
E. A. Feldman
1-28


A Galois theory for noncommutative rings
H. F. Kreimer
29-41


Galois theory for noncommutative rings and normal bases
H. F. Kreimer
42-49


A nonconstructible $\Delta \sb{3}{}\sp{1}$ set of integers
Robert M. Solovay
50-75


The generalized Pellian equation
Leon Bernstein
76-89


Unstable homotopy of ${\rm O}(n)$
Gade V. Krishnarao
90-97


On localization and domains of uniqueness
Roe W. Goodman
98-106


Elliptic systems of singular integral operators. I. The half-space case
Eliahu Shamir
107-124


Group-like extensions of minimal sets
Robert Ellis
125-135


Global dimension of valuation rings
B. L. Osofsky
136-149


The subgroups of ${\rm PSL}(3,\,q)$ for odd $q$
David M. Bloom
150-178