Bl. Cerchiai et J. Wess, Q-DEFORMED MINKOWSKI SPACE-BASED ON A Q-LORENTZ ALGEBRA, The European Physical Journal. C: Particles and Fields, 5(3), 1998, pp. 553-566
The Hilbert space representations of a non-commutative q-deformed Mink
owski space, its momenta and its Lorentz boosts are constructed. The s
pectrum of the diagonalizable space elements shows a lattice-like stru
cture with accumulation points on the light-cone.