#### Glasnik Matematicki, Vol. 32, No.2 (1997), 291-300.

### A BOUND FOR THE SPAN OF CERTAIN PLANE
SEPARATING CONTINUA

### Thelma West

Department of Mathematics, University of Southwestern Louisiana,
Lafayette, LA 70504-1010, USA

**Abstract.** Let *Y* be a plane separating continuum.
Suppose *X* is an indented circle which is contained in a
bounded component of
\ *Y*. It is shown that the span of *Y*
is larger than or equal to the span of *X*.

**1991 Mathematics Subject Classification.**
54F15, 54F20.

**Key words and phrases.** Span, simple closed curve.

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