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From: David Jefferies
Date: 18 Nov 2002
Time: 23:33:05
Remote Name: 195.92.168.166
Michele,<><><> I'd like to add to your exposition, that if you write the set of Maxwell Equations as two equations in the electromagnetic field four vectors and the current and charge four vector, there is no need at all to introduce the concept of "displacement current" which is then just an irrelevance. I think it helps significantly to write the em equations in an explicitly relativistically-invariant format. Rosser shows that the currents and charges in themselves are sufficient sources to calculate all the field components, and that the term dD/dt is not a source of magnetic field when integrated over all space. I commend the book to you.<><><> Best regards,O<>O David Jefferies.~~~~~~~~~~~ reference W Rosser "Electromagnetism via Relativity" Butterworths 1968.