Browsing by Title
Now showing items 6645-6664 of 9818
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On Approximability, Convergence, and Limits of CSP Problems
Markó, Roland (2016-09-16)This thesis studies dense constraint satisfaction problems (CSPs), and other related optimization and decision problems that can be phrased as questions regarding parameters or properties of combinatorial objects such as ... -
On arithmetic families of filtered φ-modules and crystalline representations
Hellmann, Eugen (2011-05-10)We consider stacks of filtered phi-modules over rigid analytic and adic spaces. We show that these modules parametrize p-adic Galois representations of the absolute Galois group of a p-adic field with varying coefficients ... -
On arithmetic properties of Fuchsian groups and Riemann surfaces
Kucharczyk, Robert Anselm (2015-02-11)In this thesis, Riemann surfaces and their fundamental groups are studied from an arithmetic point of view. First the image of the absolute Galois group of a number field under Grothendieck's representation with values in ... -
On Avoidance and Neglect as Barriers to Informed Decision-Making: Three Essays in Behavioral Economics
Fels, Markus Peter (2014-08-07)The thesis comprises three essays on the reasons for and consequences of poorly-informed decision-making.
Chapter 1 investigates active avoidance of information as a source of uninformed decision-making. Next to ... -
On Cells and Agents: Geosimulation of Urban Sprawl in Western Germany by Integrating Spatial and Non-Spatial Dynamics
Rienow, Andreas (2014-07-18)Urban sprawl is one of the most challenging land-use and land-cover changes in Germany implicating numerous consequences for the anthropogenic and geobiophysical spheres. While the population and job growth rates of most ... -
On cooperation and trust in strategic games: Behavioral Evidence from the Middle East and Europe
Walkowitz, Gari (2010-04-08)This thesis is about selected issues of cooperation and trust in strategic games.
This first chapter paper investigates the impact of game presentation on cooperation dependent on subject-pool affiliation. Two ... -
On Discrete and Geometric Firefighting
Schwarzwald, Barbara Anna (2021-08-19)Wildfires ravaging forests around the globe cost lives, homes and billions in damages every year, which motivates the study of effective firefighting. In the area of theoretical computer science, several different models ... -
On discrete surfaces: Enumerative geometry, matrix models and universality classes via topological recursion
Garcia-Failde, Elba (2019-03-21)The main objects under consideration in this thesis are called maps, a certain class of graphs embedded on surfaces. We approach our study of these objects from different perspectives, namely bijective combinatorics, matrix ... -
On Dynamic Coherent and Convex Risk Measures: Risk Optimal Behavior and Information Gains
Engelage, Daniel (2009-08-27)We consider tangible economic problems for agents assessing risk by virtue of dynamic coherent and convex risk measures or, equivalently, utility in terms of dynamic multiple priors and dynamic variational preferences in ... -
«On est même surpris de voir avec quelle douceur, quelle résignation, et peut-être quel secret soulagement les humains ont consenti à leur propre disparition.»: Welterfahrung und Utopieentwurf im Werk Michel Houellebecqs
Ebel, Lukas (2009-12-08)Michel Houellebecq gilt als einer der umstrittensten Schriftsteller der Gegenwart. Das Bild, das er in seinem Romanwerk von der modernen westlichen Zivilisation zeichnet, ist das einer erweiterten Kampfzone. Damit meint ... -
On GIT Compactified Jacobians via Relatively Complete Models and Logarithmic Geometry
Bellardini, Alberto (2014-07-09)In this thesis we study modular compactifications of Jacobian varieties attached to nodal curves.
Unlike the case of smooth curves, where the Jacobians are canonical, modular compact objects, these compactifications ... -
On growth patterns and mechanisms in arctic-alpine shrubs
Dobbert, Svenja (2022-12-12)Arctic-alpine ecosystems are considered hot-spots of environmental change, with rapidly warming conditions causing massive alterations in vegetational structure. These changes and their environmental controls are highly ... -
On growth patterns and mechanisms in Mediterranean-alpine shrubs
Albrecht, Eike Corina (2023-05-22)(noch nicht zugänglich / not yet accessible) -
On high performance computing in geodesy: applications in global gravity field determination
Brockmann, Jan Martin (2015)Autonomously working sensor platforms deliver an increasing amount of precise data sets, which are often usable in geodetic applications. Due to the volume and quality, models determined from the data can be parameterized ... -
On High Performance Computing in Geodesy: Applications in Global Gravity Field Determination
Brockmann, Jan Martin (2014-12-08)Autonomously working sensor platforms deliver an increasing amount of precise data sets, which are often usable in geodetic applications. Due to the volume and quality, models determined from the data can be parameterized ... -
On Modeling and Assessing Uncertainty Estimates in Neural Learning Systems
Sicking, Joachim (2023-04-20)While neural networks are universal function approximators when looked at from a theoretical perspective, we face, in practice, model size constraints and highly sparse data samples from open-world contexts. These limitations ... -
On Modeling and Measuring Credit, Recovery and Liquidity Risks
Cadena Ibarra, Juan Marcelo (2010-03-17)We investigate three major risks of financial markets: credit, recovery and liquidity risks.
Chapter 1 studies credit risk in an irreversible investment problem. The analysis demonstrates that optimal investment time ... -
On moduli spaces of Riemann surfaces: new generators in their unstable homology and the homotopy type of their harmonic compactification
Boes, Felix Jonathan (2018-07-10)By M_g(m,n) we denote the moduli space of conformal structures on an oriented compact cobordism S_g(m,n) of genus g greater or equal 0 and with m+n greater or equal 0 enumerated, parametrized boundary components of which ... -
On Monte Carlo methods with applications to the current satellite gravity missions
Alkhatib, Hamza (2008)Large-scaled least squares problems require tailored numerical techniques to overcome the computational burden.For these types of problems iterative strategies are suitable because of their flexibility and effectiveness. ... -
On Monte Carlo methods with applications to the current satellite gravity missions
Alkhatib, Hamza (2007)Large-scaled least squares problems require tailored numerical techniques to overcome the computational burden. For these types of problems iterative strategies are suitable because of their flexibility and effectiveness. ...