Sökning: "Karl-Heinz Fieseler"

Hittade 3 avhandlingar innehållade orden Karl-Heinz Fieseler.

1. 1. Problems in the Classification Theory of Non-Associative Simple Algebras

   Författare :Erik Darpö; Ernst Dieterich; Karl-Heinz Fieseler; William Crawley-Boevey; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Division algebra; flexible algebra; normal form; composition algebra; absolute valued algebra; vector product; rotation.; MATHEMATICS; MATEMATIK;

   Sammanfattning : In spite of its 150 years history, the problem of classifying all finite-dimensional division algebras over a field k is still unsolved whenever k is not algebraically closed. The present thesis concerns some different aspects of this problem, and the related problems of classifying all composition and absolute valued algebras. LÄS MER

3. 2. On Stratified Algebras and Lie Superalgebras

   Författare :Anders Frisk; Volodymyr Mazorchuk; Karl-Heinz Fieseler; Steffen Koenig; Uppsala universitet; []
   Nyckelord :Algebra and geometry; Stratified algebras; Lie Superalgebras; Properly stratified algebras; Quasi-hereditary algebras; the queer Lie superalgebra; Kostant s Theorem; Algebra och geometri;

   Sammanfattning : This thesis, consisting of three papers and a summary, studies properties of stratified algebras and representations of Lie superalgebras.In Paper I we give a characterization when the Ringel dual of an SSS-algebra is properly stratified. LÄS MER

4. 3. Russell’s hypersurface from a geometric point of view

   Författare :Isac Hedén; Karl-Heinz Fieseler; Wojciech Chacholski; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Algebra; geometry and mathematical analysis; Algebra; geometri och analys; Mathematics; Matematik;

   Sammanfattning : .... LÄS MER