Back Steinsche Mannigfaltigkeit German Variedad de Stein Spanish Variété de Stein French シュタイン多様体 Japanese 슈타인 다양체 Korean Stein-variëteit Dutch
In mathematics, in the theory of several complex variables and complex manifolds, a Stein manifold is a complex submanifold of the vector space of n complex dimensions. They were introduced by and named after Karl Stein (1951). A Stein space is similar to a Stein manifold but is allowed to have singularities. Stein spaces are the analogues of affine varieties or affine schemes in algebraic geometry.