Gherardo Piacitelli SISSA http://www.piacitelli.org/myindex.php Papers Ultraviolet Finite Quantum Field Theory on Quantum Spacetime Dorothea Bahns, Sergio Doplicher, Klaus Fredenhagen, Gherardo Piacitelli January 15, 2003 open access link Commun.Math.Phys.237:221-241,2003 On the unitarity problem in space/time noncommutative theories Dorothea Bahns, Sergio Doplicher, Klaus Fredenhagen, Gherardo Piacitelli January 28, 2002 open access link Phys.Lett.B533:178-181,2002