"Pmb" wrote in message ...

"Martin Hogbin" wrote in message
...

"Pmb" wrote in message
...
Alas there is more misinformation being passed around. This time
regarding
the precise definition of "Lorentz Transformation." The misinformation
is
that, for example, a transformation from frame S which has spherical
spatial
coordinates (t,r,theta,phi) to another frame S' moving relative to S and
having coordinates (t',r',theta',phi') is a Lorentz transformation. That
is
incorrect. While there most certainly exists transformations as suich
and
which leave the spacetime interval ds^2 invariant they are not refered
to as
"Lorentz Transformations."

What are they referred to as?

They don't have a name.

I would have thought that calling them 'the Lorentz
transformations in spherical polar coordinates' would
make everyone happy.

Martin Hogbin