On the theory of orders, in particular on the semigroup of ideal classes and genera of an order in an algebraic number field.
On the Similarity Transformation between an Integral Matrix with Irreducible Characteristic Polynomial and its Transpose.
On the 1-Cohomology of the General and Special Linear Group I. (Short Communication).
Die Hauptideale der kubischen Klassenkörper imaginär-quadratischer Zahlkörper: ihre rechnerische Bestimmung und ihr Einfluß auf den Klassenkörperturm.
On different in orders in an algebraic number field and special units connected with it
Divisors of Recurrent Sequences.
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