u(x,t)=f(γ(x−vt))
x′=γ(x−vt)
u(x,t)=f(x′)
x′=γ(x−vt)
Since
t′=γ(t−vxc2)
Is it possible to have some other phenomenon which is essentially relativistic
w(x,t)=w(t′)=w(γ(t−vxc2))
We can see that w satisfies the following PDE
(c2v)2∂2w∂x2=∂2w∂t2
whose solution is
w(x,t)=g(t−xv′)
where v′=c2v
so the harmonic solution w(x,t)=ei(ωt−kx)
where with the dispersion relation v=kc2ω
On the other hand
v=pm
so
p=mc2ωk
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