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Dissertation
A Unifying Theory for Runge-Kutta-like Time Integrators: Convergence and Stability
(2024)
The work deals with two major topics concerning the numerical analysis of Runge-Kutta-like (RK-like) methods, namely their stability and order of convergence. RK-like methods differ from additive RK methods in that their coefficients are allowed to depend on the solution and the step size. As a result of this, we also refer to them as non-standard additive RK (NSARK) methods. We motivate and introduce modified Patankar (MP) schemes as a subclass of NSARK methods and emphasize their importance. The first major part ...
Dissertation
Job-shop scheduling with flexible energy prices and time windows: A branch-and-price-and-cut approach
(2024)
Energy-aware scheduling is crucial in the current economy and green production initiatives. However, with the rise of renewable energy sources, power production is subject to uncertain weather conditions. Hence, within a network, some balancing group managers must maintain a balance between production and demand, which requires precise energy orders for specific times. Therefore, those managers must prioritize accurate energy orders to manage this complex problem.
The primary aim of this thesis is to manage one ...