HOUSTON JOURNAL OF
MATHEMATICS

Archived Edition Vol. 5, No. 2, 1979

Editors: D.G. Bourgin (Houston), B. Jóhnson (Nashville), A. Lelek (Houston), J.S. Mac Nerney (Houston), J.W. Neuberger (Emory), B.H. Neumann (Australian National University), J. Schmidt (Houston)
Managing Editor: G.G. Johnson (Houston)
Associate Managing Editors: J. Hausen (Houston), J.A. Johnson (Houston)

Houston Journal of Mathematics


Contents

Shair Ahmad, Alan C. Lazer
On the Role of Hopf's Maximum Principal in Elliptic Sturmian Theory, pp. 155-158.

Maurizio Badii, Antonio Croce
Regularity in Abstract Differential Equations, pp. 159-167.

Zvonko Cerin
The Shape Category of a Shape Map, pp. 169-182.

Brian A. Davey
On the Lattice of Subvarieties, pp. 183-192.

Jo Ford, R. W. Heath
Incompressible Spaces, pp. 193-198.

Anthony M. Gaglione
A Commutator Identity Proved by Means of the Magnus Algebra, pp. 199-207.

R. B. King
Conjugates of Regular Complete Multipartite Graphs and Hyperpolygonal Graphs, pp. 209-217.

Rebecca H. Lee
Covers and Associated Primes in Noetherian Lattice Modules, pp. 219-239.

Charles F. Mills, Jan van Mill
A Nonsupercompact Continuous Image of a Supercompact Space, pp. 241-247.

Mary Ellen Rudin
The Undecidability of the Existence of a Perfectly Normal Nonmetrizable Manifold, pp. 249-252.

Walter Rudin
Unitarily Invariant Algebras of Continuous Functions on Spheres, pp. 253-265.

Walter S. Sizer
Group Retractions Induced by a Total Order, pp. 267-268.

George W. Soules
An Inequality in the Grassman Algebra, pp. 269-275.

A. Verma, C. M. Joshi
Some Remarks on Summation of Basic Hypergeometric Series, pp. 277-294.

Bill Watson, Lieven Vanhecke
The Structure Equation of an Almost Semi-Kahler Submersion, pp. 295-305.