Noninertial Multirelativity

We firstly propose an extension of Einstein's thought experiment with atomic clocks of the Special Theory of Relativity: considering non-constant accelerations and arbitrary $3D$-curves for both a particle's speed and trajectory inside the rocket and respectively the rocket's speed and trajectory. And secondly we propose as research multiple reference frames $F_{1}, F_{2}$\textit{, {\ldots}, F}$_{n}$ moving on respectively arbitrary $3D$-curves $C_{1}, C_{2}$\textit{, {\ldots}, C}$_{n }$with respectively arbitrary non-constant accelerations $a_{1}, a_{2}$\textit{, {\ldots}, a}$_{n}$ and respectively initial velocities $v_{1}, v_{2}$\textit{, {\ldots}, v}$_{n}$. The reference frame $F_{i }$is moving with a nonconstant acceleration $a_{i }$and initial velocity v$_{i}$ on a $3D-$curve $C_{i}$ with respect to another reference frame $F_{i+1}$ (where \textit{1 $\le $ i $\le $ n-1}).