Umbrella or sun cap? Buy or sell stocks? When it comes to questions like these, many people today rely on AI-supported ...
The numerical integration of stiff equations is a challenging problem that needs to be approached by specialized numerical methods. Exponential integrators form a popular class of such methods since ...
1 Warwick Mathematics Institute, The University of Warwick, Coventry, United Kingdom 2 School of Computer and Information Engineering, Luoyang Institute of Science and Technology, Luoyang, China To ...
A variety of linear models are available to represent common active electronic devices such as transistors and vacuum tubes. Devices operating under large-signal conditions often require nonlinear ...
Abstract: Network-constrained unit commitment (UC) problem typically uses a linear approximation of AC constraints to guarantee solution efficiency. However, the key difficulty current linearization ...
Abstract: This paper introduces an Outer Approximation (OA) method for solving discrete AC Optimal Power Flow (OPF) problems that account for switching decisions. The OPF problem is formulated via the ...
ABSTRACT: The Einstein ring is usually explained in the framework of the gravitational lens. Conversely here we apply the framework of the expansion of a superbubble (SB) in order to explain the ...
Then, they proved that Algorithm 2 is a 3-approximation algorithm for the k-PCVCS. Specifically, if the penalty function is linear, Algorithm 2 is a 2-approximation algorithm. Future work may focus on ...
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