Institute of Product and Process Innovation (PPI), Leuphana Universität Lüneburg, Lüneburg, Germany

Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia

Institut für Mathematik, Angewandte Mathematik, Zürich, Switzerland

Department of Law Economics and Human Sciences, University “Mediterranea” of Reggio Calabria, Reggio Calabria, Italy; The Invernizzi Centre for Research in Innovation, Organization, Strategy and Entrepreneurship (ICRIOS), Bocconi University, Milano, Italy

Instituto de Ciencias Matemáticas (CSIC-UAM-UC3M-UCM), Calle Nicolás Cabrera, 13-15, Campus Cantoblanco, UAM, Madrid, Spain

Departament de Matemàtiques, Universitat de València, Burjassot, València, Spain

Department of Mathematics, University of Salerno, Salerno, Italy

Department of Mathematics, University of Leicester, University Road Leicester, Leicester, UK

Faculty of Natural Sciences and Mathematics, University of Maribor, Maribor, Slovenia

Institute of Artificial Intelligence, Faculty of Computing, Engineering and Media, De Montfort University, Leicester, UK

Galician Centre For Mathematical Research and Technology (CITMAga), Santiago de Compostela, Spain; Departamento de Estatística, Análise Matemática e Optimización, Facultade de Matemáticas, Universidade de Santiago de Compostela, Santiago de Compostela, Sp

Institute for Multidisciplinary Mathematics, Universitat Politècnica de València, València, Spain