The GL(n, Fp)—invariance of the Potts Hamiltonian
Mihai Caragiu, Mellita Caragiu · International Journal of Mathematics and Mathematical Sciences · 1995
After defining a meanfield by arithmetic means, using multiplicative characters of finite fields, its Potts Hamiltonian is exactly computed. Moreover, it proves to be invariant with respect to every change of basis in Fq over the prime field Fp.