- THE FUNDAMENTAL THEOREM OF AXONOMETRY
From the past to the future: a new demonstration of the fundamental theorem of axonometry, Roma, 1994.
- THE FUNDAMENTAL THEOREM OF SPACE REPRESENTATION SCIENCE
The theorem of representation and the unification of its methods, Roma, 1994.
- THE THEOREM OF THE SPACE BENDING
The dimensions of the space, Palermo, 2008.
- THE THEOREM OF THE FINITE
The dimensions of the space, Palermo, 2008.
- THE THEOREM OF EQUIVALENCE BETWEEN EXTENTION AND MOVEMENT OF THE OBSERVER
The dimensions of the space, Palermo, 2008.
- THE THEOREM ON DENSITY OF THE TIME
The dimensions of the space, Palermo, 2008.
- THE GENERAL THEOREM OF POLIEDRON PRISMS
General theorem of poliedron prisms: a new general homoeomorphic demonstration, Palermo, 2009
- THE THEOREM ON GREATEST DENSITY OF A GROUP OF SPHERES
Projective geometrical demonstration of Kepler conjecture on greatest density of a group of spheres. 2011