Sökning: "MATHEMATICS Algebra"
Visar resultat 21 - 25 av 276 avhandlingar innehållade orden MATHEMATICS Algebra.
21. Proportionalitetsbegreppet i den svenska gymnasiematematiken – en studie om läromedel och nationella prov : [The Concept of Proportionality in the Swedish Upper Secondary School Mathematics – a Study of Textbooks and National Examinations]
Sammanfattning : Proportionalitet är ett centralt begrepp i skolmatematiken. Begreppet introduceras i de lägre stadierna och återkommer i så gott som samtliga kurser från årskurs 9 tillsista kursen på gymnasiet. Det övergripande syftet med denna studie är att undersöka hur det matematiska begreppet proportionalitet hanteras i den svenska gymnasieskolan. LÄS MER
22. Minimal models in algebra, combinatorics and topology
Sammanfattning : The thesis consists of seven papers.In Paper I, II, III, IV and V, we study homological invariants of monomial rings — rings of the form R = k[x1, . . . LÄS MER
23. Knotted Legendrian surfaces with few Reeb chords
Sammanfattning : .... LÄS MER
24. Representation theorems for abelian and model categories
Sammanfattning : In this PhD thesis we investigate a representation theorem for small abelian categories and a representation theorem for left proper, enriched model categories, with the purpose of describing them concretely in terms of specific well-known categories.For the abelian case, we study the constructivity issues of the Freyd-Mitchell Embedding Theorem, which states the existence of a full embedding from a small abelian category into the category of modules over an appropriate ring. LÄS MER
25. Ext-algebras of standard modules over quasi-hereditary algebras
Sammanfattning : This thesis concerns the representation theory of a particular class of finite-dimensional algebras, called quasi-hereditary algebras. In particular, it considers two subclasses of quasi-hereditary algebras: dual extension algebras and hereditary algebras. It consists of three papers. LÄS MER