E-Dissertationen: Auflistung E-Dissertationen nach Titel
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On the membrane model and the discrete Bilaplacian
(2021-04-26)This thesis is concerned with the membrane model, an example of a discrete random interface model. This model arises, for example, when studying thermal fluctuations in biomembranes. Mathematically, it is given as a Gibbs ... -
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 Numerical Computation of Modular Forms
(2023-12-12)This thesis presents a fast method for the numerical computation of modular forms. Our method significantly improves the performance of previous methods by using mixed-precision iterative solving techniques to reduce the ... -
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 Usability of Coverage-Based Fuzzing of C/C++ Programs
(2024-02-15)Even though the foundations for fuzzing were laid more than 30 years ago, it did not play a role in industry or academia for a long time. Interestingly, the popularity of fuzzing has risen for top-tier companies and academia ... -
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
(2021-02-08)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 ... -
Operads, Algebras and Modules in Model Categories and Motives
(2004)In the first part of this thesis the homotopy theory of operads, algebras over operads and modules over operad algebras is developed in the context of cofibrantly generated symmetric monoidal model categories. It is shown ... -
Optical cleaning of lithium niobate crystals
(2010-03-04)An all-optical method for the removal of photoexcitable electrons from photorefractive centers to get rid of optical damage in lithium niobate crystals is presented, the so-called "optical cleaning". The method combines ... -
Optical confirmation and weak lensing mass constraints for distant Sunyaev-Zel'dovich-detected galaxy clusters
(2022-03-28)Galaxy clusters reside in the densest regions of the large-scale matter distribution of the Universe. Therefore, their number density as a function of mass and redshift is a powerful tool for cosmological studies aiming, ...
