} &amp; \frac{a^{2} + 1}{v_{2}} &amp; - \frac{a}{v_{2}}\\0 &amp; 0 &amp; - \frac{a}{v_{2}} &amp; \frac{1}{v_{2}}\end{matrix}\right] \\ 
   V_1 &amp;= \left[\begin{matrix}v_{2} &amp; a v_{2} &amp; a^{2} v_{2} &amp; a^{3} v_{2}\\a v_{2} &amp; v_{2} \left(a^{2} + 1\right) &amp; v_{2} \left(a^{3} + a\right) &amp; v_{2} \left(a^{4} + a^{2}\right)\\a^{2} v_{2} &amp; v_{2} \left(a^{3} + a\right) &amp; v_{2} \left(a^{4} + a^{2} + 1\right) &amp; v_{2} \left(a^{5} + a^{3} + a\right)\\a^{3} v_{2} &amp; v_{2} \left(a^{