*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*

**Christopher Allday
**

Rational Homotopy and Torus Actions, pp.
1-19.

**H. S. Bear, G. N. Hile
**

Analytic Structure in Function Algebras, pp. 21-28.

**R. P. Boas, Jr., Carl L. Prather
**

Final Sets for Operators on Finite Fourier Transforms, pp. 29-36.

**Lu-San Chen, Cheh-Chih Yeh
**

On Oscillation of Solutions of Higher Order Differential Retarded Inequalities, pp. 37-40.

**Robert J. Daverman
**

Shrinking Certain Closed 1-Dimensional Decompositions of Manifolds, pp.
41-47.

**Erik Ellentuck
**

Sylow Subgroups of a Regressive Group, pp.
49-67.

**Ronald Fintushel, Peter Sie Pao
**

A Surgery Construction on M^{3} x S^{1}, pp.
69-73.

**U. Fixman, L. A. Rubel
**

Limits of Sequences of Rational Functions and Their Derivatives, pp.
75-87.

**William A. Greene
**

Enveloping Algebras and Projective Limits of Locally Compact Groups, pp.
89-97.

**W. Charles Holland, Stephen H. McCleary
**

Solvability of the Word Problem in Free Lattice-Ordered Groups, pp.
99-105.

**Paul R. Meyer, Richard G. Wilson
**

Cardinal Functions on Topological Spaces Satisfying Order Conditions, pp. 107-118.

**T. T. Moh
**

On a Normalization Lemma for Integers and an Application of Four Colors Theorem, pp.
119-123.

**Sam B. Nadler, Jr.
**

A Fixed Point Theorem for Hyperspace Suspensions, pp. 125-132.

**William O. Ray
**

Zeros of Accretive Operators Defined on Unbounded Sets, pp.
133-139.

**William W. Smith
**

Invertible Ideals and Overrings, pp. 141-153.