University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Proof of the zig-zag conjecture

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

Proof of the zig-zag conjecture

Download to your calendar using vCal

If you have a question about this talk, please contact Mustapha Amrani .

Grothendieck-Teichmller Groups, Deformation and Operads

In quantum field theory primitive Feynman graphs give—via the period map—rise to renormalization scheme independent contribution to the beta function. While the periods of many Feynman graphs are multiple zeta values there exists the distinguished family of zig-zag graphs whose periods were conjectured in 1995 by Broadhurst and Kreimer to be certain rational multiples of odd single zetas.

In joint work with F. Brown it was possible in 2012 to prove the zig-zag conjecture using the theory of graphical functions, single valued multiple polylogarithms and a theorem by D. Zagier on multiple zeta values of the form zeta(2,...,2,3,2,...,2).

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

https://zoom.us/j/96362436955?pwd=N1ZaVkkrcjhXSlBEdVZSZ29KZTVtUT09 Room GS4 DMB and online, Faculty of Education, University of Cambridge The Parlour, Magdalene College

Other talks

Polar Oceans Seminar Talk Talk TBC Title to be confirmed Title to be confirmed Title to be confirmed Welfare Reform and the Imperative of Cooperation
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity