Abstract. We define various classes of spaces in this paper. We define a class of surfaces which are formed by the rotation of a particular type of arc through the y-axis. We define a corresponding class of solids, two cells, and related simple closed curves. We determine all the spans of objects in these classes of spaces. We also determine bounds for spans of objects related to spaces in these classes.
2000 Mathematics Subject Classification. 54F20, 54F15.
Key words and phrases. Span, simple closed curve.