1. Centre for Applicable Mathematics, Tata Institute of Fundamental Research, Sharadanagar, Bangalore, India.
2. Université Côte d’Azur, LJAD, Inria, and CNRS, Parc Valrose, Nice, France.
3. Centre for Applicable Mathematics, Tata Institute of Fundamental Research, Bangalore, India, and Faculty of Mathematics, Informatics, and Mechanics, University of Warsaw, Poland.