Im Zuge der vierten industriellen Revolution eröffnen sich durch die zunehmende Konnektivität und neue Technologien, insbesondere Fertigungsverfahren wie der 3D-Druck, neue Wertschöpfungsprozesse in der Produktion. Das ...

When studying the dependence structure of multivariate random vectors, the copula is crucial. A copula is called exchangeable, if it is invariant under any permutation of its arguments. In this thesis, a limit for the ...

This thesis studies the article "Local solutions to a class of Monge-Ampère equations of mixed type" by Qing Han (Duke Math. J., Vol. 136, No. 3, 2007). The article proves the existence of sufficiently smooth local solutions ...

The thesis is divided into two parts. The first part deals with t-perfect graphs. A graph is called t-perfect if its stable set polytope is fully described by non-negativity, edge and odd-cycle constraints. We give ...

In dieser Arbeit geben wir eine neue, weniger restriktive Forderung für die Hebbarkeit singulärer Mengen E von glatten Lösungen der m-Hesse Gleichung (und auch für allgemeinere nichtlineare elliptische Gleichungen) auf ...

This work has been motivated by optimizing the efficiency of a ship-propulsion device, the Voith-Schneider Propeller, w.r.t. its steering (determined by the so-called blade-steering curve). We consider a simplified model ...

Labor and product market institutions are regarded as central factors for explaining differences in the evolution of unemployment across countries. It is generally assumed that reforms which serve to reduce institutional ...

Die vorliegende Arbeit gliedert sich in zwei Hauptteile. Der erste Teil beschreibt und analysiert ein Modell, welches das Ziel hat die gleichzeitige Entwicklung von Elektrizitäts- und Gaspreisen möglichst adäquat abzubilden. ...

In this thesis, we consider stationary Poisson cylinder processes (PCPs). Here, a cylinder is defined as the Minkowski sum of a linear vectorspace and a polyconvex set in the orthogonal space. A PCP is a random set of ...

This thesis primarily gives an overview of research on so called betweenness relations with a focus on own contributions to that subject. Betweenness relations represent a generalisation of the geometric notion that one ...