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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeSep 13th 2014
• (edited Sep 13th 2014)

What mathematicians call the Mellin transform relating a theta function to its (completed) zeta function

$\hat \zeta(s) = \int_0^\infty t^{s-1} \hat \theta(t) \, d t$

is precisely what physicists call the Schwinger parameter-formulation which takes the partition function of the worldline formalism to the zeta-regulated Feynman propagator

$Tr H^{-s} = \int_0^\infty t^{s-1} Tr \exp(- t H) \, d t \,.$

I have tried to briefly mention this relation in relevant entries and to cross-link a bit. But more should be done.

• CommentRowNumber2.
• CommentAuthorzskoda
• CommentTimeSep 14th 2014

I just copied the above 2 formulas to the entry Mellin transform.

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