Amadou Tall is an assistant professor at the Universite Cheikh Anta Diop de Dakar, Senegal. He was hosted by Prof. Michael A. Bennet at the University of British Columbia, Vancouver, Canada. His research stay was during the period 02.09.2019-28.09.2019. During the research period Amadou Tall did research on number theory and cryptography.

Josephine Kagunda is a senior lecturer at the University of Nairobi, Kenya. She was hosted by Prof. Calistus Ngonghala at the University of Florida, United States. Her research stay was during the period 01.11.2019-31.12.2019. During the research period Josephine Kagunda did research on mathematical modeling of the interplay between human behavior, socio-economic effects, and the transmission and control of infectious diseases.

Fredrick Nyamwala is senior lecturer at the Moi University, in Kenya. He was hosted by Prof. Eugene Shargorodsky at King's College London, UK. His research stay was during the period 01.09.2019-30.09.2019. During the research period Fredrick Nyamwala did research on the special theory of the composite of commuting and non-commuting differential operators.

Patrick Tchepmo is a full-time associate professor at the Arba Minch University, Ethiopia. He was hosted by Prof. Ludovic Rifford at the Centre International de Mathematiques Pure et Appliques (CIMPA), Nice, France. His research stay was during the period 02.09.2019-08.10.2019. During the research period Patrick Tchepmo did research on partial differential relations of second order in differential geometry.

Jean Baptiste Gatsinzi is an associate professor at the Botswana International University of Science and Technology, Mathematics Department, Palapye, Botswana. He was hosted by Prof. Pascal Lambrechts at the Universite Catholique de Louvain, Belgium. His research stay was during the period 16.01.2020-16.02.2020. During the research period Jean Baptiste Gatsinzi did research on the study of homology and cohomology of Gerstenhaber Algebras arising as the loop space homology of elliptic spaces.

Diogene Vianney Pongui Ngoma is a lecturer at the Marien Ngouabi University, Brazzaville, Republic of Congo. He will be hosted by Prof. Vincent Jacquemet at the Centre de Recherche Hopital du Sacre-Coeur de Montreal (Montreal University), Montreal, Canada. During his research period Diogene Vianney Pongui Ngoma will do research on the creation of arrhythmogenic substrates for the simulation of fibrillation in a model of human atria. (Due to Covid 19 the conference has been postponed. As soon as traveling is possible again the new dates will be announced.)

Hamoudy Kamal Ould Bouh is a employed at the Institut Superieur de Comptabilite et d' Administration d' Entreprises (ISCAE), Nouakchott, Mauritania. He will be hosted by Prof. Mohameden Ahmedou at the Giessen University, Giessen, Germany. During his research period Hamoudy Kamal Ould Bouh will do research on Self-Dual Gauge Field Vortices. (Due to Covid 19 the conference has been postponed. As soon as traveling is possible again the new dates will be announced.)