Wild hypersurfaces
Wildness of polynomial automorphisms in three variables
Witt vectors and Tambara functors
Zero-Divisors of Content Algebras
Zero-divisors of semigroup modules
Zonotopal algebra
Zur Affinitaet von Hyperflaechenkomplementen in affinen und projektiven Schemata
\C-flows A^z of linear maps A expressed in terms of A^{-1},A^{-2},...,A^{-n} and analytic functions of z