Maximally extended, explicit and regular coverings of the Schwarzschild   - de Sitter vacua in arbitrary dimension
  Maximally extended, explicit and regular coverings of the Schwarzschild - de Sitter family of vacua are given, first in spacetime (generalizing a result due to Israel) and then for all dimensions $D$ (assuming a $D-2$ sphere). It is shown that these coordinates offer important advantages over the well known Kruskal - Szekeres procedure. 
Kayll Lake