eDissertationen: Browsing eDissertationen by Title
Now showing items 2168-2187 of 3356
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On the Feynman-Kac formula for Schrödinger semigroups on vector bundles
(2011-05-11)In this thesis we generalize the Feynman-Kac formula to semigroups that correspond to Schrödinger type operators with possibly singular potentials on vector bundles over noncompact Riemannian manifolds.
This ... -
On the Finiteness of the Classifying Space for Virtually Cyclic Subgroups
(2018-07-20)This thesis mainly deals with finiteness properties of the classifying space for the family of virtually cyclic subgroups. We establish a link between the finiteness of the classifying space and the conjugacy growth invariant ... -
On the geometry of nodal sets and nodal domains
(2018-12-13)In the present work, we study and prove results related to the nodal geometry of Laplacian eigenfunctions on closed Riemannian manifolds, as well as solutions to more general classes of elliptic partial differential ... -
On the Hilbert uniformization of moduli spaces of flat G-bundles over Riemann surfaces
(2014-01-27)In this thesis, we study the moduli spaces M_(g,q)^m (G)of flat pointed principal G-bundles over Riemann surfaces X. The genus of X is g 0 and G is a fixed Lie group. Further, we are given m 0 permutable marked points in ... -
On the imidazole-2-thione-based route to tricyclic 1,4-diphosphinines: synthesis, structures and reactions
(2018-02-15)The PhD Thesis “On the imidazole-2-thione-based route to tricyclic 1,4-diphosphinines: synthesis, structures and reactions” describes the synthetic concept to and first studies on the chemistry of novel tricyclic ... -
On the Influence of Cations in Non-Aqueous Electrochemistry
(2019-07-29)In this thesis, different aspects of the electrochemistry in non-aqueous electrolytes are presented. Electrochemistry in non-aqueous electrolytes plays a key role in the transition from conventional to renewable energy ... -
On the notion of order in the stable module category
(2009-12-22)The notion of order in triangulated categories, as introduced by Schwede, is investigated in the case of the stable category of kG-modules, where k is a field of characteristic p and G is a ... -
On the origin and nature of brown dwarfs and massive planets
(2011-03-02)In this thesis the apparent peculiarities of brown dwarfs (BDs) are pointed out which force us to treat them as a population apart from, but yet still related to the stellar population. In particular, the properties that ... -
On the probabilistic evaluation of decadal and paleoclimate model predictions
(2017-11-27)The development of climate prediction systems for years to decades is an area of current research, as these time scales are important e.g. for the planning horizon of decision-makers. Those prediction systems can be improved ... -
On the relation between K- and L-theory of complex C*-Algebras
(2016-07-26)We study the space of natural transformations from connective topological K-theory to algebraic L-theory viewed as functors from C*-algebras to spectra. We prove the existence of a transformation which witnesses the ... -
On the relaxation of a variational principle for the motion of a vortex sheet in perfect fluid
(2013-03-14)A certain two-phase model is considered, which stands some relation with a description of the vortex sheet configuration in a perfect fluid.
Both a sharp and a relaxed version of the evolution can be understood as ... -
On the stability of the blow-up for the wave maps and the cubic wave equation
(2018-07-16)In Thesis is divided into two parts. In the first part, we study the stability of the blow-up for the wave maps equation whereas in the second part we address the stability of the blowup for the cubic wave equation in ... -
On the theory of derivators
(2011-10-27)In Part 1, we develop some aspects of the theory of derivators, pointed derivators, and stable derivators. As a main result, we show that the values of a stable derivator can be canonically endowed with the structure of a ... -
On the theory of higher Segal spaces
(2020-10-21)This thesis contains three chapters, each dealing with one particular aspect of the theory of higher Segal spaces introduced by Dyckerhoff and Kapranov:
(1) By exhibiting the simplex category as an ∞-categorical ... -
On the Γ-convergence of the energies and the convergence of almost minimizers in infinite magnetic cylinders
(2012-07-23)In this thesis we study static 180 degree domain walls in infinite thin magnetic wires with either a rectangular or a centrally symmetric Lipschitz cross section. We explore the magnetization energy minimization problem ... -
On Topological String Theory with Calabi-Yau Backgrounds
(2009-11-23)String theory represents a unifying framework for quantum field theory as well as for general relativity combining them into a theory of quantum gravity. The topological string is a subsector of the full string theory ... -
On τ-Tilting Theory and Perpendicular Categories
(2016-11-04)We extend the classification of finitely generated modules and the combinatorial description of Auslander-Reiten sequences for finite-dimensional string algebras to infinite dimensional completed string algebras. The proof ... -
Online Scheduling-Spiele
(2014-12-02)Ziel dieser Arbeit ist die Modellierung von online Scheduling-Spielen. Es gibt viele verschiedene Arten von Scheduling-Problemen. Wir betrachten Probleme, bei denen eine Menge von Jobs Maschinen zugewiesen werden müssen. ... -
Online-Überwachung der Granulateigenschaften Wassergehalt und Partikelgröße in der Wirbelschicht mit der NIR-VIS-Spektroskopie und Untersuchungen zur Porosität von Granulaten mit der Quecksilberporosimetrie
(2008)In dieser Arbeit werden Möglichkeiten der Online-Messung der Granulateigenschaften Wassergehalt und Partikelgröße in einem Wirbelschichtgranulator mit einem NIR-VIS-Diodenarray-Spektrometer vorgestellt.
Weiterhin ... -
Open Topological Field Theories and 2-Segal Objects
(2019-10-17)In this thesis we analyze 2-dimensional open topological field theories in both 1-categorical and ∞-categorical contexts. Making use of the formalism, introduced by Dyckerhoff and Kapranov, of graphs structured over a ...
