deletions | additions       diff --git a/Massive coupling.tex b/Massive coupling.tex  index 94f873b..cc3cd76 100644  --- a/Massive coupling.tex  +++ b/Massive coupling.tex 
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\Rightarrow m = \frac{\hbar \omega_0}{c^2}  \end{equation}  Following this account, we conjecture that the mass is the expression of the proper frequency related to a particular elastic coupling, additional to the one existing between the oscillators of the field $\Xi$.\\  If the frequency $\omega_0$ generates the proper time $\tau$ of the massive particle, for symmetry it must be exist a \emph{wave lenght} \textcrlambda     Inoltre, se la frequenza (0) è generatrice del tempo proprio () associato alla particella massiva, per simmetria deve esistere una “lunghezza d’onda” (0) che ne generi lo “spazio proprio”.   Ricordando la relazione di $\not\lambda$ that generates the \emph{proper space} of the particle.\\   Following  De Broglie, possiamo avere che: we have:   \begin{equation}   \left\{\begin{matrix}   p_0 & = & \frac{2\pi\hbar}{\lambda_0}\\   p_0 & = & m c   \end{matrix}\right.   \Rightarrow \not\lambda_0 = \frac{\hbar}{m c} \equivalent \not\lambda_c   \end{equation}