 are defined respectively by: $$\begin{array}{l} {\mathcal{A}}(A^{\nu ..}) := {\ds \sum\limits_{n^0=N_0^0}^{N_0^0} \sum\limits_{n^0=N_0^0}^{N_0^0} \sum\limits_{n^0=N_0^0}^{N_0^0} \sum\limits_{n^0=N_0^0}^{N_0^0} } \\[0.0cm] L\