An extension the Liénard-Wiechert retardation equations
to include the Thomas precession

The first paper of this series is at
arXiv.org/abs/1409.2101.
The solution for the first derivative is shown there, and the paper
contains essential background material for later papers. The supplemental
material for this paper is at
s-4.com/som1.

The calculations are extended to the third time derivative at
s-4.com/som2.

The gravitational solutions are under development at
s-4.com/mass.