HOUSTON JOURNAL OF
MATHEMATICS

Archived Edition Vol. 17, No. 1, 1991

Editors: H. Brezis (Paris), G.G. Johnson (Houston), J.A. Johnson (Houston), A. Lelek (Houston), J. Nagata (Osaka), B.H. Neumann (Australian National University), G. Pisier (Paris), G.-C. Rota (MIT), R. Scott (Houston)
Managing Editor: V. Paulsen (Houston)

Houston Journal of Mathematics


Contents

Jeffrey M. Lee
The Gaps in the Spectrum of the Laplace-Beltrami Operator, pp. 1-24.

Mustapha Mokhtar-Kharroubi
Compactness Properties for Positive Semigroups on Banach Lattices and Applications, pp. 25-38.

Stewart Baldwin
Some Limitations Toward Extending Sarkovskii's Theorem to Connected Linearly Ordered Spaces, pp. 39-53.

Lorenzo Traldi
Higher Fitting Invariants, pp. 55-61.

Manuel Del Pino, Manuel Elgueta, Paul Manasevich
Generalizing Hartman's Oscillation Result for (|x'|p-2x')'+c(t)|x|p-2x, pp. 63-70.

Nguyen Phuong Cac, Friedmar Schulz
Multiple Solutions for a Class of Semilinear Dirichlet Problems, pp. 71-81.

Min Ho Lee
Rational Involutions of Classical Algebraic Groups, pp. 83-87.

Lajos Molnar
A Note on Saworotnow's Representation Theorem on Positive Definite Functions, pp. 89-99.

Toma V. Tonev
Analytic Manifolds in Uniform Algebras, pp. 101-108.

D. D. Anderson, David F. Anderson, Muhammad Zafrullah
Rings Between D[X] and K[X], pp. 109-129.

Khristo N. Boyadzhiev, Ralph J. deLaubenfels
Hinfty Functional Calculus for Perturbations of Generators of Holomorphic Semigroups, pp. 131-147.