\eta) {\mbox{\large ] \normalsize}} 
\quad\quad\quad\quad\quad\quad \quad\quad\quad \quad\quad\quad \end{aligned}$$

$$\label{eqn149}
\gamma_{1} U_{1}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta ) \;+\; \gamma_{2}\, U_{2}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta ) \;+\; \gamma_{3}\, U_{3}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta ) \;=\;0$$

$$\label{eqn150}
U_{1}(\gamma_{1}, \gamma_{2},  \gamma_{3},  0)\;=\; U_{1}^{0}(\gamma_{1} ,\gamma_{2} ,\gamma_{3})$$

$$\label{eqn151}
U_{2}(\gamma_{1}, \gamma_{2},  \gamma_{3},  0)\;=\; U_{2}^{0}(\gamma_{1} ,\gamma_{2} ,\gamma_{3})$$

$$\label{eqn152}
U_{3}(\gamma_{1}, \gamma_{2},  \gamma_{3},  0)\;=\; U_{3}^{0}(\gamma_{1} ,\gamma_{2} ,\gamma_{3})$$

Let us rewrite system of equations $(\ref{eqn147})\;-\; (\ref{eqn149})\;$ in the following form:

$$\begin{aligned}
\label{eqn147a}
{\mbox{\large [ \normalsize}}\eta \;+\;\nu( \gamma_{1}^{2} +\gamma_{2}^{2} +\gamma_{3}^{2}){\mbox{\large ] \normalsize}}\frac{\gamma_{2}}{\gamma_{1}} U_{1}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta)   \;-\; {\mbox{\large [ \normalsize}}\eta \;+\;\nu( \gamma_{1}^{2} +\gamma_{2}^{2} +\gamma_{3}^{2}){\mbox{\large ] \normalsize}} U_{2}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta)  \;=  \nonumber
\\
\nonumber\\
\;\;\; {\mbox{\large [ \normalsize}}  \frac{\gamma_{2}}{\gamma_{1}} \tilde{F}_{1}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta) \; -\;\tilde{F}_{2}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta ) {\mbox{\large ] \normalsize}}+ {\mbox{\large [ \normalsize}} \frac{\gamma_{2}}{\gamma_{1}} U_{1}( \gamma_{1}, \gamma_{2}, \gamma_{3}, 0)  \; -\;U_{2}( \gamma_{1}, \gamma_{2}, \gamma_{3}, 0 ) {\mbox{\large ] \normalsize}}
\quad\end{aligned}$$

$$\begin{aligned}
\label{eqn148a}
{\mbox{\large [ \normalsize}}\eta \;+\;\nu( \gamma_{1}^{2} +\gamma_{2}^{2} +\gamma_{3}^{2}){\mbox{\large ] \normalsize}}\frac{\gamma_{3}}{\gamma_{1}} U_{1}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta)   \;-\; {\mbox{\large [ \normalsize}}\eta \;+\;\nu( \gamma_{1}^{2} +\gamma_{2}^{2} +\gamma_{3}^{2}){\mbox{\large ] \normalsize}} U_{3}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta)  \;=  \nonumber
\\
\nonumber\\
\;\;\; {\mbox{\large [ \normalsize}}  \frac{\gamma_{3}}{\gamma_{1}} \tilde{F}_{1}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta) \; -\;\tilde{F}_{3}^{\otimes}( \gamma_{1}, \gamma_{2}, \gamma_{3}, \eta ) {\mbox{\large ] \normalsize}}+ {\mbox{\large 