Jeener was born on 31 July 1944. He studied at the
Lycée Janson de Sailly and then (1963) at the
École nationale supérieure des beaux-arts. Already influenced by the engravings of
Maurits Escher and Flake's treatise on curvilinear perspective, he has exhibited at the
Palais de la Découverte and the
Institut Henri Poincaré. This included models of
mathematical functions made out of plaster that he decided to use as inspiration. He lived and worked at
La Motte-Chalancon, a village between
Vercors and
Baronnies in
Provence. Jeener died on 3 March 2026, at the age of 81. Examples of his work include the following: • « Topologie des surfaces » (surface
topology), • « Géométrie à 4 dimensions » (
4-dimensional geometry), • « Bouteille de Klein » (
Klein bottle). ==References==