The 5x5=25 patches of the tridimensional representation of a quadridimensional Calabi-Yau manifold [Les 5x5=25 'patches' -morceaux- d'une représentation tridimensionnelle d'une variété quadridimensionnelle de Calabi-Yau].
n = n = 5 1 2[See the equations of this quadridimensional Calabi-Yau manifold]
A = B = 1