In order to write the field equations for elastic waves, Cartesian tensor notation is introduced, as well as the concepts of stress and strain, which are proportional to each other for linear elastic ...

Abstract: The magnetic gradient tensor is the spatial rate of change of the magnetic vector along the three axes of the Cartesian coordinate system. It is particularly suitable for aeromagnetic ...

(1) A NEW edition of this really useful book is to be welcomed. The author has returned to Heaviside's notation of p for the operator, a distinct improvement. The chapter on Bessel functions has been ...