This book is aimed at providing a coherent, essentially self-contained, rigorous and comprehensive abstract theory of Feynmans operational calculus for noncommuting operators. Although it is inspired by Feynmans original heuristic suggestions and time-ordering rules in his seminal 1951 paper An operator calculus having applications in quantum…
She has more shoes than Sarah Jessica Parker and a skin-care system that could make Madonna swoon, but unlike her celebrity counterparts, Grace Noonan doesn't have it all. Her latest utterly-eligible-yet-maddeningly-unavailable boyfriend has just revealed that having sex with her is one thing and having babies quite another, forcing Grace to move on-again. And now that her employer-a top cosmetics company once devoted to "beauty beyond thirty"-is pursuing a teenaged supermodel as its future face, this thirty-four-year-old marketing exec is starting to wonder if she is going to get it all before the closing credits. Could it be time for Grace to back out of the beauty race and trade the singles scene for the sperm bank? Or is there something even this savvy bombshell has yet to discover about life and love in New York City?
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