| Institution: | 1. Department of Mathematics and Physics, National Advanced School of Engineering (Polytechnic), University of Yaounde I, PO Box 8390, Yaounde, Cameroon;2. Laboratory of Applied Mathematics, Department of Mathematics and Computer Science, Faculty of Science, University of Douala, PO Box 24157, Douala, Cameroon;3. Department of Mathematics, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, Cameroon;4. UMI 209 IRD/UPMC UMMISCO, Bondy, France;5. Project-Team GRIMCAPE, LIRIMA, University of Yaounde I, Cameroon |
