The authors


Jean-Philippe Castillon
Former student of « Ecole Normale Supérieure de Cachan »,
he teaches Mathematics at the University of La Reunion.


Jean-Bernard Castillon
Chemist, PhD of Mathematics, has teached as professor of Mathematics at Reunion Island University from 1972 to 2000. Currently retired, his main hobby is the study of the succulents of Madagascar, especially the genus Aloe.

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