Universelle und spezielle Probleme.
Initial Morphisms and Monomorphisms.
Über die Klassenzahl imaginär-quadratischer Zahlkörper.
Eine Bemerkung über das Kompositum von Dedekindringen über Hauptidealringen.
Über die Klassenzahl und die Grundeinheit des reellquadratischen Zahlkörpers.
Über Zerlegungen des Kreisteilungspolynoms.
Morphismen von Funktoren.
The coproduct of totally convex spaces
Spaces of Lipschitz functions on metric spaces
In this paper the universal properties of spaces of Lipschitz functions, defined over metric spaces, are investigated.
Totally convex algebras
By definition a totally convex algebra is a totally convex space equipped with an associative multiplication, i.eȧ morphism of totally convex spaces. In this paper we introduce, for such algebras, the notions of ideal, tensor product, unitization, inverses, weak inverses, quasi-inverses, weak quasi-inverses and the spectrum of an element and investigate them in detail. This leads to a considerable generalization of the corresponding notions and results in the theory of Banach spaces.
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