Seminars

A list of all seminars of interest to us in the area is here:
Event page of the Kolleg Mathematical Physics Berlin


Joint seminar with FU Berlin (tbc):
Outer space and QFT

Every otherThursday, 10.00
Seminar Room “Villa”, Arnimallee 2


PhD student seminar on Campus Leben (contact M.Borinsky for details)
Every other Thursday, 10.00
Bernstein Center


Organised by Dirk Kreimer and his group:
Our research seminar

On Mondays, 15.00
Room 2’07, IRIS Building, Zum Großen Windkanal 6
12489 Berlin


Winter 2017/18
October 16 dies academicus
October 23 Zeuthen KMPB conference Elliptic Integrals, Elliptic Functions and Modular Forms in Quantum Field Theory
November 06 Iain Crump (SFU&Waterloo U.) Connections between the EGP and the c2 invariant
November 13 Marko Berghoff (HU) Feynman amplitudes on moduli spaces of graphs
November 20 Christian Bogner (HU) The analytic continuation of the sunrise and the kite integral
November 27 Michael Borinsky (HU) > Hopf algebras and factorial divergent power series: Algebraic tools for
graphical enumeration
December 04 Johannes Thuerigen (HU) Critical behaviour of Tensor models
December 11 Valentina Forini (City Univ. London) tba
December 18 Erik Panzer (All Souls College, Oxford) Counting master integrals with parametric annihilators
December 19 KMPB Day
9.30

10.45

14.00

ZGW 6, IRIS R. 2.21
Viktor Levandovskyy (RWTH Aachen): Annihilator of f^s: theory and computation
Yang Zhang (ETH Zuerich): Module intersection method and Feynman integral reduction
Mikhail Kalmykov (Hamburg): Hypergeometric functions and massive Feynman diagrams.
January 08 Johannes Bluemlein (Desy Zeuthen Theory) Elliptic Integrals in Higher Loop Calculations
– from IBPs to \eta-weighted elliptic polylogarithms
January 15 David Jarossay (Geneva) tba
January 22 Daniela Cadamuro (TUM) tba
January 29 Yang Zhang (ETH Zuerich) tba
February 05 Henry Kissler (HU) tbd
February 12 Dirk Kreimer (HU) Multi-valued Feynman Graphs
Summer 2017
April 24 Franz Herzog (NIKHEF) The R*-operation for generic euclidean Feynman graphs
April 25 (!) Franz Herzog (NIKHEF) The 5-loop beta function in QCD
May 08 Dirk Kreimer (RUD25 1’327) Remainder terms
May 15 Marko Berghoff Amplitudes on the moduli space of graphs
May 22 Henry Kissler QED at higher dimensions
May 29 Karen Yeats (U.Waterloo, Canada) The c_2 invariant at p=2 graphically
June 12 Ralph Kaufmann (Purdue U.) Feynman categories and moduli: decorated, derived and cubical
June 15 !!
RUD25, 1.315
4 pm !!
Noriko Yui (Queen’s Univ., Canada & MPIM, Bonn) Modularity/Automorphy of certain Calabi–Yau Varieties of CM type
June 26 Astrid Eichhorn (Heidelberg) The status of asymptotic safety for quantum gravity
July 03 KMPB day Oliver Schnetz (FAU Erlangen-Nuernberg), Karen Yeats (U.Waterloo & HU), Ralph Kaufmann (Purdue & HU)
July 10
IRIS, 2.21 !
KMPB conference Higgs Bundles, K3 Surfaces and Moduli
July 17 Claire Glanois An eye on Modular forms and Periods
Winter 2016/17
October 31. Dirk Kreimer Remarks on Cutkosky rules and Field Diffeomorphisms
November 07. no seminar Professorium Physik
November 14 Henry Kissler On gauge dependence
November 21. Michael Borinsky Asymptotic growth of periods
November 28. Marcel Golz Simplifying the parametric Feynman integral in QED
Dec 05. Marko Berghoff On Outer Space
December 12 Luise Adams (Mainz U.) The sunrise and the kite integral in terms of an elliptic generalisation of the multiple polylogarithms
December 15 (special seminar RUD25) Dmitry Doryn (IBS-CGP, Pohang) Differential models for B-type open-closed topological
Landau-Ginzburg theories
January 09 Matteo Rosso (HUB) Yangian invariance of N=4 super-Yang-Mills and ABJM
January 16 IMPRS Lecture Day AEI
January 30 Thomas Willwacher (ETH Zuerich) Graph complexes and configuration spaces: an overview
February 20. KMPB Day Martin Gonzalez:
Axel Kleinschmidt:
Federico Zerbini:
Summer 2016
April 18. 14.30 Dirk Kreimer Field Diffeomorphisms and Green’s functions
April 25. ..
May 02. Karen Yeats (SFU) Field diffeomorphisms and Bell polynomials.
May 10. Nils Matthes (KMPB) Elliptic double zeta values and the Fay-shuffle space
May 19. Nils Matthes (KMPB) The motivic coaction for elliptic multiple zeta values
May 30. Franz Herzog (NIKHEF) Soft Expansion by Region and Higgs Production
June 13 Erik Panzer Oxford The Hepp bound – a rational period
June 20 KMPB day Michael Borinsky : Factorially divergent expansions from a QFT perspective
Oliver Schnetz : Numbers and Functions in Quantum Field Theory
Christian Bogner : Multiple and elliptic polylogarithms for Feynman integrals
July 04 Sophia Borowka Zuerich Univ. Numerical evaluation of multi-loop integrals in Higgs boson pair production
July 11 Kurusch Ebrahimi Fard ICMAT A diagrammatic description of planar functional calculus
July tba. Dmitry Doryn The c_2 invariants of 4-regular graphs.
July 18. ECM Congress in Berlin ..
Winter 2015/16
October 19. Dirk Kreimer ..
October 26. Nguyen Viet Dang Lille Complex powers of analytic functions and renormalization in QFT
November 02. Pierre Cartier IHES p-adic multizeta values (according to David Jarossay)
November 09. David Broadhurst Open Univ. Modular periods from determinants of Feynman integrals
November 16. Johannes Brödel HU Berlin Elliptic multiple zeta values and a special derivation algebra
November 23. Anton Mellit Trieste A proof of the shuffle conjecture
November 30. Erik Panzer All Souls College/ Oxford The parity theorem for multiple polylogarithms
December 07. Joachim Kock Barcelona Polynomial functors and combinatorial Dyson–Schwinger equations
December 14. Ines Aniceto Krakau Resurgence and Asymptotics in Quantum Theories: Beyond Perturbation Theory
January 11., 2016 Oliver Schnetz Erlangen Dimreg phi^4 with graphical functions
January 18., 2016 John Gracey Liverpool Higher dimensional gauge theories
January 25., 2016 Lorenzo Tancredi Karlsruhe The role of the space-time dimensions in simplifying systems of differential equations
for Feynman Integrals.
April 20. Dirk Kreimer Cutkosky rules and outer space
April 27. Nils Matthes Univ Hamburg Elliptic analogues of multiple zeta values
May 11. Olaf Kruger MPI Golm Filtrations in Dyson-Schwinger equations: Next-to^{j}-leading log expansions systematically
May 18. Dmitry Doryn MPI Mathematik Bonn Some remarks on motivic denominator reduction
June 8. Ralph Kaufmann Purdue Hopf algebras from co-operad structures and Feynman categories and their relation to Tannakian categories
June 15. Francis Brown Oxford Univ. Irrationality proofs for zeta values and dinner parties
Fri June 26.
11 am
Oliver Schnetz Univ. Erlangen The Galois coaction and the structure of phi4 periods
June 29. Mikhail Kalmykov Hamburg Evaluation of Feynman Diagrams via hypergeometric functions representation
Tue. July 7 SFB 647 Seminar: Ralph Kaufmann Purdue
Francis Brown IHES/Oxford
Feynman categories

From amplitudes to representations

Wed July 8
11 am
Iain Crump SFU Burnaby An invariant from incidence matrix permanents
July 13. Reimar Wulkenhaar Univ. Münster A solvable quantum field theory in 4 dimensions
Wed July 15
1 pm room 3.007
Clermont Dupont MPI Bonn Purity for Brown’s moduli spaces, and the Gravity operad
Winter 2014/15
Nov 03 Roberta Iseppi Radboud University Nijmegen The BV Formalism in the setting of Noncommutative Geometry: application to
a U(2)-gauge invariant matrix model
Nov 10 David Broadhurst Open Univ. Polylogarithms of sixth roots of unity in quantum field theory
Nov 17 Pierre Clavier Jussieu Singularities and zetas in a Schwinger-Dyson equation
Nov 24 Piotr Tourkine DAMTP Cambridge Tropical Amplitudes
Dec 01 Pierre Cartier IHES Motivic Periods
Dec 08 Costas Papadopoulos NCSR “Demokritos” Athen Two-loop Master Integrals with the Simplified Differential Equations approach
Dec 15 Markus Hihn HUB ..
Jan 12 Jacelyn Bell University of Liverpool Vertex functions in QCD – a practical approach
Jan 19 Joseph Ben Geloun MPI Potsdam On the dimensional regularization and renormalization of
rank=2 and 3 tensor models
Jan 26 Daniela Egas Univ. Bonn Comparing combinatorial Models of the Moduli space of Riemann surfaces
Jan 27, 2 pm Norman Sieroka ETH Zuerich Gauge Principle and Holography — Two contemporary concepts and their
prehistory and philosophical background in the work of Hermann Weyl
Feb 09 Ulf Kühn Hamburg Multiple Eisenstein series and a new class of multiple q-zeta values
Summer 2014
April 07 Andreas Windisch
Graz
Non-perturbative properties of Landau gauge QCD correlation functions at vanishing and non-vanishing chemical potential
April 15 Alexander Alexandrov
FRIAS
Matrix Models: a universal tool of mathematical physics
May 05 Isabella Bierenbaum
Hamburg
From Loops to Trees via the Duality Method
May 12 David Broadhurst
open U.
Algebraic geometry informs quantum field theory
May 19 Gerald Dunne
Connecticut
Resurgent Trans-series from Uniform WKB
May 26 Ralph Kaufmann
MPIM Bonn
Feynman, Hopf, Rota and Baxter.
June 02 Andreas von Manteuffel
Mainz
Feynman integrals for ZZ production at NNLO
June 23 Frederic Fauvet
Strasbourg
Resurgence monomials
June 30 Burkhard Eden
HU Berlin
Constructing six-point NMHV correlators and amplitudes in N=4 SYM
July 07 Francis Brown
Jussieu
tba
July 14 Oliver Schnetz
Erlangen/Berlin
Phi^4 periods with 6th roots of unity
Winter 2013/14
Oct. 28. Dirk Kreimer
HU Berlin
Remarks on Cutkosky rules
Nov. 04. Lutz Klaczynski
HU Berlin
Avoidance of a Landau pole by flat contributions in QED
Nov. 11. Oliver Schnetz
Erlangen / Berlin
CANCELLED !!!
Nov. 18. Dhritiman Nandan
HU Berlin
Nov. 25. Lionel Mason
Oxford
The holomorphic Wilson-loop: dlog forms of loop integrands and their evaluation
Dec. 02. Susama Agarwala
Hamburg
Dihedral symmetries of multiple polylogarithms: polygons and symbols
Dec. 09. Jean Alexandre
Kings College
Lorentz-symmetry violation and dynamical mass generation
Jan. 13. Christian Bogner
HU Berlin
Multiple polylogarithms and Feynman integrals
Jan. 20. Clemens Raab
DESY Zeuthen
Nested (inverse) binomial sums and new iterated integrals for massive Feynman diagrams
Jan. 27. Pierre Vanhove
IHES
the physics and arithmetics of the banana graphs in two dimensions
Feb.03. Kasper Larsen
NIKHEF
From Trees to Two Loops by Maximal Unitarity
Feb. 13. Pierre Clavier tba
Summer 2013
April 22. Dirk Kreimer
HU
On Parametric Representations
April 29. Clement Dupont
IMJ (Jussieu)
Galois theory of periods and combinatorial Hopf algebras
May 13. Claire Glanois
IMJ (Jussieu)
Motivic MZVs at Nth roots of unity
May 27. Fabian Wissbrock
DESY (Zeuthen)
Heavy flavor contributions to DIS at $O(\alpha_s^3)$: Diagrams with Two masses and nested topologies
June 03 David Broadhurst
Open University
Polylogarithms from Schlaefli to Schwinger
June 17 Marc Bellon
LPTHE Jussieu
Solving Schwinger-Dyson equations: a door to the high orders of perturbation theory
June 24 Francis Brown
IMJ (Jussieu)
On associators
June 26
2 pm
John Gracey
Liverpool
Exploring the Wess-Zumino model at high loops
June 26
3 pm
Ralph Kaufmann
Purdue Univ.
Feynman categories and new perspective on Hopf algebras
July 01 Karen Yeats
SFU Burnaby
tba

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