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Talks and seminars, possibly part of a conference or series.

tba

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Speaker: 
Arthemy V. Kiselev
Affiliation: 
University of Groningen
Date: 
Fri, 2018-12-07 10:30 - 12:30
Location: 
MPIM Lecture Hall

tba

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Speaker: 
Geoffroy Horel
Affiliation: 
Université Paris 13, Institut Galilée/MPIM
Date: 
Fri, 2018-11-30 10:30 - 12:30
Location: 
MPIM Lecture Hall

The Grothendieck-Teichmüller Lie algebra and related subjects

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Speaker: 
Hisatoshi Kodani
Affiliation: 
MPIM
Date: 
Fri, 2018-11-23 13:00 - 14:30
Location: 
MPIM Seminar Room

From quantum invariants of knots to categorification

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Speaker: 
Catharina Stroppel
Affiliation: 
Universität Bonn
Date: 
Mon, 2018-11-19 16:30 - 18:00
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Vorlesung Topology of 4-Manifolds

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Speaker: 
Peter Teichner
Affiliation: 
MPIM
Date: 
Thu, 2018-11-22 13:15 - 15:00
Location: 
MPIM Seminar Room

Higher quantum Airy structures and W-algebras

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Speaker: 
Gaetan Borot
Affiliation: 
MPIM
Date: 
Tue, 2018-12-18 14:00 - 15:00
Location: 
MPIM Lecture Hall

This is a joint work with Vincent Bouchard, Dmitry Noshchenko and Nitin Chidambaram.

Good definition of GR and the case of continuous functions on Teichmüller spaces

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Speaker: 
Danilo Lewanski
Affiliation: 
MPIM
Date: 
Mon, 2018-11-19 14:00 - 16:00
Location: 
MPIM Seminar Room

The Barycenter method and the Degree Theorem

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Speaker: 
Ivo Slegers
Affiliation: 
Utrecht U./MPIM
Date: 
Wed, 2018-11-21 16:30 - 18:00
Location: 
MPIM Seminar Room
Parent event: 
IMPRS seminar

A New Northcott Property for the Faltings Height

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Speaker: 
Lucia Mocz
Affiliation: 
Universität Bonn
Date: 
Wed, 2018-11-21 14:30 - 15:30
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

The Faltings height is a useful invariant for addressing questions in
arithmetic geometry. In his celebrated proof of the Mordell and
Shafarevich conjectures, Faltings shows the Faltings height satisfies a
certain Northcott property, which allows him to deduce his finiteness
statements. In this work we prove a new Northcott property for the
Faltings height. Namely we show, assuming the Colmez Conjecture and the
Artin Conjecture, that there are finitely many CM abelian varieties of a
fixed dimension which have bounded Faltings height. The technique

Split Lie 2-algebroids and matched pairs of 2-representations

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Speaker: 
Madeleine Jotz-Lean
Affiliation: 
Göttingen
Date: 
Wed, 2018-11-21 10:30 - 12:00
Location: 
MPIM Lecture Hall

A matched pair of Lie algebroid representations is equivalent to two seemingly different objects; the bicrossproduct Lie algebroid and the double Lie algebroid of the matched pair. In similar manner, a Lie bialgebroid is equivalent to a ‘cotangent double Lie algebroid’, and to a ‘bicrossproduct' Courant algebroid.

On congruences in Iwasawa theory for supersingular abelian varieties

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Speaker: 
Gautier Ponsinet
Affiliation: 
MPIM
Date: 
Tue, 2018-11-13 14:00 - 15:00
Location: 
MPIM Lecture Hall

Generalizing work of Kobayashi, Büyükboduk and Lei have defined modified Selmer groups along the Zp-cyclotomic extension for abelian varieties with good supersingular reduction. We will discuss congruence properties for these Selmer groups.

tba

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Speaker: 
Chunyi Li
Affiliation: 
Warwick
Date: 
Thu, 2018-11-29 10:20 - 12:00
Location: 
MPIM Lecture Hall

tba

Posted in
Speaker: 
Daniele Zuddas
Affiliation: 
Universität Bayreuth
Date: 
Mon, 2018-12-10 16:30 - 18:00
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

New guests at the MPIM

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Speaker: 
Robin Bartlett, Luca Battistella, Lauren Bandklayder
Affiliation: 
MPIM
Date: 
Thu, 2018-11-15 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

Moduli Spaces of Riemann surfaces

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Speaker: 
Florian Kranhold
Affiliation: 
MPIM
Date: 
Wed, 2018-11-14 16:30 - 18:00
Location: 
MPIM Seminar Room
Parent event: 
IMPRS seminar

A renormalization program for Dyson–Schwinger equations (part II)

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Speaker: 
Ali Shojaei-Fard
Affiliation: 
MPIM
Date: 
Mon, 2018-11-19 12:00 - 13:30
Location: 
MPIM Lecture Hall
Parent event: 
IMPRS Minicourse

This Minicourse is based on the speaker's monograph "a mathematical perspective on the phenomenology of non-perturbative Quantum Field Theory" (to appear in MPIM preprint series).  In this talk I plan to review the fundamental structure of the Connes--Kreimer renormalization Hopf algebra of Feynman diagrams and combinatorial Dyson--Schwinger equations. Then I explain a recent application of infinite graph theory to Quantum Field Theory which leads to build a renormalization machinery for infinite formal expansions of Feynman diagrams.

A renormalization program for Dyson–Schwinger equations (part I)

Posted in
Speaker: 
Ali Shojaei-Fard
Affiliation: 
MPIM
Date: 
Mon, 2018-11-12 12:00 - 13:30
Location: 
MPIM Lecture Hall
Parent event: 
IMPRS Minicourse

This Minicourse is based on the speaker's Monograph "A mathematical perspective on the phenomenology of non-perturbative Quantum Field Theory" (to appear in MPIM preprint series).  In this talk I plan to review the fundamental structure of the Connes--Kreimer renormalization Hopf algebra of Feynman diagrams and combinatorial Dyson--Schwinger equations. Then I explain a recent application of infinite graph theory to Quantum Field Theory which leads to build a renormalization machinery for infinite formal expansions of Feynman diagrams.

Arithmetic of zero-cycles on products of Kummer varieties and K3 surfaces

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Speaker: 
Francesca Balestrieri
Affiliation: 
MPIM
Date: 
Tue, 2018-11-27 14:00 - 15:00
Location: 
MPIM Lecture Hall

The following is joint work with Rachel Newton. In the spirit of work by Yongqi Liang, we relate the arithmetic of rational points to that of zero-cycles for the class of Kummer varieties over number fields. In particular, if X is any Kummer variety over a number field k, we show that if the Brauer-Manin obstruction is the only obstruction to the existence of rational points on X over all finite extensions of k, then the Brauer-Manin obstruction is the only obstruction to the existence of a zero-cycle of any odd degree on X.

Modular tensor categories and 3D TQFT

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Speaker: 
Mark Penney
Affiliation: 
MPIM
Date: 
Mon, 2018-11-12 16:30 - 18:00
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

From quantum invariants of knots to categorification, II -- cancelled --

Posted in
Speaker: 
Catharina Stroppel
Affiliation: 
Universität Bonn
Date: 
Mon, 2018-11-12 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar
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