Quote from Roanoke:
Mike, thanks for your informative comments. I merely meant that Laplace transformation is appropriate because it is single-sided to be in accord with the causality requirement of functions of time. My sole background in Laplace transformation is in the analysis of waveforms for filter synthesis, and no doubt I am woefully out-of-date. My experience is that treating price series as if they were time series measured from physical phenomena is a useful approach if used with caution, understanding that price is not bound by the constraints of physicality. In regards to "robust and tradebadle", does a young mathematical buck like you have any hints for a broken-down old innumerate like me? Best regards, and thanks for the reference.