%0 Journal Article %A Ralf Meyer %T Representations of $^\ast$-Algebras by Unbounded Operators: C$^\ast$-Hulls, Local-Global Principle, and Induction %J Documenta mathematica %D 2017 %P 1375-1466 %V 22 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/600/ %R 10.4171/dm/600 %F 10_4171_dm_600