1. Chair Computational Mathematics, Institute of Mathematics, Hamburg University of Technology, Hamburg, Germany.
2. Department of Mathematics, University of Augsburg, Universitätsstr. 12a, 86159, Augsburg, Germany.
3. Department of Mathematics & Centre for Advanced Analytics and Predictive Sciences (CAAPS), University of Augsburg, Universitätsstr. 12a, 86159, Augsburg, Germany.