On the Approximation of a Function Continuous off a Closed Set by One Continuous Off a Polyhedron

Steven P. Ellis

Let $P$ be a finite simplicial comple with underlying space (union of simplices in $P$) $|P|$. Let $Q$ be a subcomplex of $P$. Let $a\ge 0$. Then there exists $K<\infty$, \emph…