*Editors*: R.H. Bing (Austin), D.G. Bourgin (Houston), B. Jóhnson (Nashville), A. Lelek (Detroit), 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*

**George E. Andrews
**

On Identities Implying the Rogers-Ramanujan Identities, pp. 289-298.

**Jimmy T. Arnold, Robert Gilmer
**

The Dimension Theory of Commutative Semigroup Rings, pp.
299-313.

**John W. Bales
**

Representable and Strongly Locally Homogeneous Spaces and Strongly n-Homogeneous Spaces, pp.
315-327.

**Richard Bellman, E. Stanley Lee
**

Modeling and Optimization in Energy Systems I. Coal Gasification Modeling, pp. 329-344.

**L. Carlitz
**

Polynomial Representations and Compositions II. Q-Analogs, pp. 345-372.

**Stephen D. Comer
**

Multi-Valued Loops, Geometries, and Algebraic Logic, pp. 373-380.

**Kyung Whan Kwun, Jeffrey L. Tollefson
**

Involutions of 3-Manifolds With Almost Tame Fixed Point Sets Are PL, pp. 381-386.

**Marston Morse
**

Frechet Numbers in Global Variational Analysis, pp.
387-403.

**James M. Parks
**

On a Particular Completion Involving the Space of Self-Homotopy Equivalences, pp. 405-414.

**E. T. Schmidt
**

On the Variety Generated by All Modular Lattices of Breadth Two, pp. 415-418.

**Peter F. Stebe
**

Nests in Nilpotent Groups, pp. 419-426.

**R. C. Thompson, Z. Gordon
**

Sections of Matrix Pairs: The Second Interlacing Principle, pp.
427-437.

**David G. Wright
**

Pushing a Cantor Set Off Itself, pp. 439-447.