- #1

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- 1

## Main Question or Discussion Point

This is from Horatio Nastase "Intro to Quantum Field Theory" book (Cambridge University Press, 2019) , chapter 59. The reader is supposed to massage equation (3) into equation (4) with the help of the given polylogarithm formulas (1) and (2). I do not see at all how that's possible.

Unfortunately, the book (first edition) seems to have some fair amount of typos, as far as I can tell. The exponent (n-1) above -1 in equation (1) should be (n-2), as on the polylogarithm wiki page noted under integral representation, no. 5.

Has someone an idea what the author does to get from equation (3) to (4)?

Unfortunately, the book (first edition) seems to have some fair amount of typos, as far as I can tell. The exponent (n-1) above -1 in equation (1) should be (n-2), as on the polylogarithm wiki page noted under integral representation, no. 5.

Has someone an idea what the author does to get from equation (3) to (4)?