Sökning: "certain"
Visar resultat 11 - 15 av 6402 avhandlingar innehållade ordet certain.
11. Optimizing nonlinear models of certain transportation and inventory systems
Sammanfattning : .... LÄS MER
12. Properties of invariant sets in certain two-dimensional dynamical systems : Renormalization and beyond
Sammanfattning : This thesis consists of an introduction and four research papers concerning dynamical systems, focusing on renormalization in two dimensions.Paper I (joint with Jordi-Lluís Figueras) studies a generalization of the anti-integrable limit of skew-product systems based on a Frenkel-Kontorova model. LÄS MER
13. Rigidity properties of certain discrete solvable group actions on tori
Sammanfattning : The main results of this thesis provide smooth classification of large classes of perturbations of certain multidimensional time dynamical systems: they show a form of preservation of differentiable structure under small perturbations. In our work we obtain results for systems with very different dynamical properties. LÄS MER
14. Structure and representations of certain classes of infinite-dimensional algebras
Sammanfattning : We study several infinite-dimensional algebras and their representation theory. In Paper I, we study the category O for the (centrally extended) Schrödinger Lie algebra, which is an analogue of the classical BGG category O. We decompose the category into a direct sum of "blocks", and describe Gabriel quivers of these blocks. LÄS MER
15. Asymptotic distribution of zeros of a certain class of hypergeometric polynomials
Sammanfattning : The thesis consists of two papers, both treating hypergeometric polynomials, and a short introduction. The main results are as follows. LÄS MER