1. Let A and B be two matrices, and \lambda be a continuous parameter.
2. Now, define a function f(\lambda) \equiv e^{\lambda A}e^{\lambda B}. We need to show that \frac{df}{d\lambda} = \left\{A + B + \frac{\lambda}{1!}[A, B] + \frac{\lambda^2}{2!}[A, [A, B]] + ... \right \}f
Once this is...
Thanks. OK, I shall try to better elaborate my point.
The Lorentz transformation equations are, with proper choice of axes are given as in this page: http://en.wikipedia.org/wiki/Lorentz_transformation#Lorentz_transformation_for_frames_in_standard_configuration.
The presence of the parameter v...
Hello,
I have been trying to work out the mathematical details of H Snyder's 1947 paper, titled http://prola.aps.org/abstract/PR/v71/i1/p38_1" , and I am stuck at something.
When the space-time variables are considered as Hermitian operators, and we need to verify that they satisfy Lorentz...