hi, everyone,this is the first time i put a thread here.(adsbygoogle = window.adsbygoogle || []).push({});

thanks in advance

i am now learning functional integral techniques in condensed matter physics.when dealing with Matsubara frequency summations,one will meet with the convergency factor(for example http://www.tcm.phy.cam.ac.uk/~bds10/tp3.html,lecture [Broken] notes chapter 4,14/19,then info.)i really don't know how one can get the correct convergency factor,can anyone help me on this problems,or just tell me what does the author mean in the material i gave above.

it's of great help for me.

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# Matsubara frequency convergency factor

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