Dr. Thelma R. West (Houston)

Phone number: (318) 482-6546
e-mail: trw7348@usl.edu
My main area of interest is span theory, which is a topic in continuum theory. The span X is defined when X is a continuum with a metric on it. Span can be thought of as a continuous analogue of diameter. This concept can be used to study the geometric properties of a space. It can also be used to study the geometric properties of related spaces.

Selected research publications:

    1. A note on Lebesque spaces (with S. Nadler), Topology Conference Proceedings 6 (1981), 363-369.
    2. Spans of an odd triod, Topology Proc. 8 (1983), 347-353.
    3. Spans of simple triods, Proc. Amer. Math. Soc. 102 (1988), 407-415.
    4. Spans of simple closed curves, Glas. Mat. 24 (1989), 405-415.
    5. On the spans and width of simple triods, Proc. Amer. Math. Soc. 105 (1989), 776-786.
    6. The relationship of spans and convex continua in R^n, Proc. Amer. Math. Soc. 111 (1991), 261-265.
    7. Relating spans of some continua homeomorphic to S^n, Proc. Amer. Math. Soc. 112 (1991), 1185-1191.
    8. Size levels for arcs (with S. Nadler), Fund. Math. 141 (1992), 243-255.
    9. Spans of continua and their applications (with A. Lelek), Proceedings of the Special Session on Continua (1995), Marcel Dekker Inc., New York, Basel, Hong Kong.
    10. On surjective semispan of abstract graphs, J. Combin. Math. Combin. Comput., to appear.
    11. Spans of certain simple closed curves, submitted.
    12. A bound for span of plane separaing continua, in preparation.