
A tridimensional manifold defined by means of three tridimensional fields [Une variété tridimensionnelle définie à l'aide de trois champs tridimensionnels].
an interpolation between the Bonan-Jeener's triple Klein bottle and a sphere, the three {X,Y,Z} tridimensional fields are as follows:
an interpolation between the Bonan-Jeener's triple Klein bottle and a sphere.