On Closed Starshaped Sets and Baire Category
On Closed Starshaped Sets and Baire Category
Let C be a closed set of second category in a normed linear space, and let ${C^\ast }$ be the subset of C each point of which sees all points of C except a set of first category. If ${C^\ast }$ is nonempty, then ${C^\ast }$ is a closed convex …