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Veranstaltungen

Konferenzen, Seminare, Vorträge und andere Veranstaltungen am MPIM

Kommende Konferenzen und Aktivitäten

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Graduate Research Opportunities for Women at Bonn 2024 (GROW@Bonn 2024)

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Organiser(s): 
P. Belmans, Y. Dutta, R. Krapf, D. Mattei, A. Ray, E. Reinecke, L. Wakelin
Datum: 
Don, 04/04/2024 - 08:30 - Fre, 05/04/2024 - 17:30

GROW@Bonn 2024 is for all students of underrepresented gender identities in mathematics, especially female students, who are interested in learning about graduate programmes and further opportunities in research, both within and outside academia. The conference is open to Bachelor and Master students from universities in Germany and neighbouring countries, including international students. It is possible to apply for funding for hotel and/or travel costs in the registration.

Talks and panels will be in English, but many of the mentors/volunteers/organisers will be able to speak in German and possibly other languages.

The conference will feature

- A plenary talk;
- Research talks by faculty and PhD students;
- Panel discussions about graduate research in the mathematical sciences;
- Networking and mentoring opportunities;
- Advice on preparing applications for graduate school (Master and PhD).

All interested students must register beforehand (registration form will follow), regardless of whether you are applying for funding. Confirmed participants will be notified by email.

We are currently looking for local mathematicians who would like to come and chat with our participants at GROW@Bonn 2024. Please register here to volunteer.

In case you have any questions, please contact conference$@$mpim-bonn$.$mpg$.$de.

Registration

As of February 14, 2024 the registration is closed.

Conference on "Homology growth in topology and group theory"

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Organiser(s): 
Grigori Avramidi, Dawid Kielak, Roman Sauer
Datum: 
Mon, 13/05/2024 - 09:00 - Fre, 17/05/2024 - 17:00

Conference on "Homology growth in topology and group theory", May 13 - 17, 2024

Homology growth is an umbrella term for a number of invariants associated to a topological space. In their simplest incarnation, they measure the growth of Betti numbers in finite covers of the space. Over the years, homology growth became a central topic in group theory and geometric topology. It connects various topological and geometric phenomena, especially in low-dimensional manifolds, with analytically or combinatorially defined invariants, like L^2-Betti numbers. In particular, homology growth plays a central role in controlling the existence of fiberings, over the circle in the topological setting, and over the integers in the algebraic one. The motivation and guiding principles come from the theory of 3-manifolds.Inspired by Agol's resolution of Thurston's Virtual Fibering Conjecture, homology growth and related ideas have been very recently used both in the algebraic setting of cubulated groups, and in higher dimensional negatively curved manifolds. This conference aims to bring together people behind these recent developments, provide an overview of the field and help formulate a coherent system of conjectures to guide us in the years to come.

In case you have any questions, please contact hogro2024$@$mpim-bonn$.$mpg$.$de.

Registration

The registration is closed as of March 18, 2024.

Workshop on "Dualisable Categories & Continuous K-theory"

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Organiser(s): 
Tobias Barthel, Kaif Hilman, Dominik Kirstein and Jonas McCandless
Datum: 
Mon, 09/09/2024 - 09:00 - Fre, 13/09/2024 - 15:00
Location: 
MPIM Lecture Hall

Workshop on "Dualisable Categories & Continuous K-theory", September 9 - 13, 2024

Algebraic K-theory is an object that sits at the centre of large parts of algebra, geometry, and topology because of its universal role as a receptacle to count other mathematical objects with signs. However, since its invention, a phenomenon often called the Eilenberg swindle - which says that the algebraic K-theory of a category which is too large must necessarily be zero - has been accepted as a fundamental limit to the theory.

Kommende Vorträge

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Ausführliche Liste aller demnächst stattfindenden Vorträge und Seminare. Für eine Übersicht konsultieren Sie bitte auch den Kalender.

Recent developments in Quantum Topology -- Cancelled --

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We will review the basics of quantum topology such as the colored Jones polynomial of a knot, its standard conjectures relating to asymptotics, arithmeticity and modularity, as well as the recent quantum hyperbolic invariants of Kashaev et al, their state-integrals and their structural properties. The course is aimed to be accessible by graduate students and young researchers.

Reduction of Courant algebroids via graded manifolds

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Speaker: 
Marco Zambon
Zugehörigkeit: 
KU Leuven
Datum: 
Mit, 20/03/2024 - 10:30 - 12:00
Location: 
MPIM Lecture Hall

Courant algebroids are certain objects in Lie theory that are used to define, for instance, Dirac structures and generalized complex structures. We will use the correspondence between degree 2 symplectic manifolds and Courant algebroids to approach the reduction of Courant algebroids using graded geometry. For this purpose we will consider both graded coisotropic submanifolds and a graded version of moment maps. The resulting reduction procedure, in a particular case, recovers the work of Bursztyn-Cavalcanti-Gualtieri around 2007.

Higher internal category theory

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Speaker: 
Raffael Stenzel
Zugehörigkeit: 
MPIM
Datum: 
Mit, 20/03/2024 - 11:00 - 12:00
Location: 
MPIM Seminar Room

Results which concern the classification of parametrized structures over a given base by means of internal constructions within that base are fairly ubiquitous in homotopy theory. These internalization results are generally formal consequences of reflection properties of an associated externalization functor (that is, usually, some kind of Yoneda embedding). In this talk, we use a suitable externalization functor to define the $(\infty,2)$-category of $\infty$-categories internal to some base $C$.

Some Aspects of Vertex Algebras

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Speaker: 
Paolo Tomasini
Zugehörigkeit: 
MPIM
Datum: 
Mit, 20/03/2024 - 12:00 - 14:30
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Math-Phys Seminar

Vertex algebras are algebraic structures that axiomatize some aspects of conformal field theory. We will review some of the fundamentals of their theory, focusing on the interplay with CFT.

Cycle Integrals of Meromorphic Hilbert Modular Forms

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Speaker: 
Paul Kiefer
Zugehörigkeit: 
Universität Bielefeld
Datum: 
Mit, 20/03/2024 - 14:30 - 15:30
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

When considering the Doi-Naganuma lift, Zagier introduced certain Hilbert cusp forms $\omega_m^{\operatorname{cusp}}$ corresponding to positive integers $m$. A similar construction for negative $m$ yields meromorphic Hilbert modular forms $\omega_m^{\operatorname{mero}}$ with singularities along Hirzebruch-Zagier divisors. We extend the $\xi$-operator of Bruinier-Funke to Hilbert modular surfaces and define a $\xi$-preimage $\Omega_m^{\operatorname{cusp}}$ of $\omega_m^{\operatorname{cusp}}$.

Semigroups of branched mapping classes: dynamics and geometry

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Speaker: 
Kevin Pilgrim
Zugehörigkeit: 
Indiana University, Bloomington/MPIM
Datum: 
Don, 21/03/2024 - 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

Suppose $P \subset S^2$ is a finite subset of the sphere. The  mapping class group $\mbox{Mod}(S^2,P)$ is the countable group of orientation-preserving homeomorphisms $f:(S^2, P) \to (S^2, P)$ with $f(P)\subset P$ , up to isotopy through homeomorphisms fixing $P$ pointwise. If we allow $f$ to be instead a branched covering whose branch values are contained in $P$ with $f(P) \subset P$, we obtain a countable semigroup.

Tubed embeddings

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Speaker: 
Anton Petrunin
Zugehörigkeit: 
Penn State
Datum: 
Don, 21/03/2024 - 16:30 - 18:00
Location: 
MPIM Lecture Hall

We consider the following question:
When does a Riemannian manifold admit an embedding with a uniformly thick tubular neighborhood in another Riemannian manifold of large dimension?

 

Computing modular polynomials by deformation

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Speaker: 
Sabrina Kunzweiler
Zugehörigkeit: 
INRIA, France
Datum: 
Mit, 27/03/2024 - 14:30 - 15:30
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

The classical modular polynomial $\phi_\ell(X,Y) \in \mathbb{Z}[X,Y]$ parametrizes pairs of elliptic curves connected by an isogeny of degree $\ell$.
They play an important role in algorithmic number theory, and are used in many applications, for example in the SEA point counting algorithm.

In this talk, I present a new method for computing modular polynomials. It has the same asymptotic time complexity as the currently best known algorithms, but does not rely on any heuristics.

Registration

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Datum: 
Don, 04/04/2024 - 08:30 - 09:15

Welcome

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Datum: 
Don, 04/04/2024 - 09:15 - 09:30
Location: 
MPIM Lecture Hall

Mathematische Veranstaltungen in Bonn

Bonner Mathematik-Kalendar

Alle mathematischen Veranstaltungen in Bonn sind im Veranstaltungskalender der Bonner Mathematik aufgeführt. Die Veranstaltungsorte finden Sie auf dieser Karte.

Vorlesungsverzeichnis

Alle Vorlesungen und Kurse der Universität Bonn finden Sie im Vorlesungsverzeichnis.

 

Regelmäßige Seminare, Reihen und Kurse

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Ausführliche Liste regelmäßig stattfindender Seminare, Vortrags-Reihen und Kurse oder Vorlesungen, die aus mehreren Vorträgen bestehen. Für eine Übersicht konsultieren Sie bitte auch den Kalender.

Friedrich Hirzebruch Lecture

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Location: 
University Club Bonn

The annual Friedrich Hirzebruch Lecture is a series of lectures started in 2007 on the occasion of the 80th birthday of Prof. Friedrich Hirzebruch. The lectures address a general audience and aim at illustrating the relation between mathematics and art, society and other fields.

MPI-Oberseminar

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Organiser(s): 
C. Kaiser
Datum: 
Don, 31/01/2013 - 15:00 - Don, 31/12/2026 - 16:00
Location: 
MPIM Lecture Hall

The Oberseminar is a very long running seminar at MPI (‘Ober‘ standing for 'upper'). Its idea is that the guests of the MPI speak in this seminar (hopefully early in their stay) and get the chance to explain their work to the other guests.

Promotionskolloquium

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Arbeitsgemeinschaft Arithmetische Geometrie

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Organiser(s): 
Peter Scholze

IMPRS Minicourse

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Organiser(s): 
C. Kaiser

Extra talk

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This is a collection of extra talks that don't fit into the other series.

Seminar on Algebra, Geometry and Physics

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Organiser(s): 
Yuri Manin
Datum: 
Fre, 01/01/2010 - 14:00 - Die, 31/12/2024 - 15:00
Location: 
MPIM Lecture Hall

Oberseminar Differentialgeometrie

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Organiser(s): 
Ursula Hamenstädt (U Bonn), Jonas Beyrer (U Bonn) and Stephan Stadler (MPIM)
Datum: 
Don, 02/09/2010 - 11:58 - Don, 18/12/2025 - 11:58

Contact: Stephan Stadler (stadler$@$mpim-bonn$.$mpg$.$de)

Seminar Algebraic Geometry (SAG)

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Organiser(s): 
D. Huybrechts
Datum: 
Don, 06/01/2011 - 10:30 - Don, 31/12/2026 - 12:00
Location: 
MPIM Lecture Hall

Higher Differential Geometry Seminar

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Organiser(s): 
Christian Blohmann
Datum: 
Mit, 18/04/2012 - 10:30 - Don, 31/12/2026 - 12:00
Location: 
MPIM Lecture Hall

Zurückliegende Veranstaltungen

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Füllen Sie die Suchfelder aus und drücken die Anwenden, um die Liste der angezeigten Veranstaltungen einzuschränken.

MPI-Oberseminar

Posted in
Organiser(s): 
C. Kaiser
Datum: 
Don, 31/01/2013 - 15:00 - Don, 31/12/2026 - 16:00
Location: 
MPIM Lecture Hall

The Oberseminar is a very long running seminar at MPI (‘Ober‘ standing for 'upper'). Its idea is that the guests of the MPI speak in this seminar (hopefully early in their stay) and get the chance to explain their work to the other guests.

Friedrich Hirzebruch Lecture

Posted in
Location: 
University Club Bonn

The annual Friedrich Hirzebruch Lecture is a series of lectures started in 2007 on the occasion of the 80th birthday of Prof. Friedrich Hirzebruch. The lectures address a general audience and aim at illustrating the relation between mathematics and art, society and other fields.

Workshop on "Dualisable Categories & Continuous K-theory"

Posted in
Organiser(s): 
Tobias Barthel, Kaif Hilman, Dominik Kirstein and Jonas McCandless
Datum: 
Mon, 09/09/2024 - 09:00 - Fre, 13/09/2024 - 15:00
Location: 
MPIM Lecture Hall

Workshop on "Dualisable Categories & Continuous K-theory", September 9 - 13, 2024

Algebraic K-theory is an object that sits at the centre of large parts of algebra, geometry, and topology because of its universal role as a receptacle to count other mathematical objects with signs. However, since its invention, a phenomenon often called the Eilenberg swindle - which says that the algebraic K-theory of a category which is too large must necessarily be zero - has been accepted as a fundamental limit to the theory.

Conference on "Arithmetic Geometry" in Honour of Gerd Faltings' 70th Birthday

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Organiser(s): 
Christian Blohmann, Christian Liedtke, Wiesława Nizioł
Datum: 
Mon, 22/07/2024 - 09:00 - Fre, 26/07/2024 - 15:00
Location: 
MPIM Lecture Hall

Conference on "Arithmetic Geometry" in Honour of Gerd Faltings' 70th Birthday

Speakers:

Bhargav Bhatt (University of Michigan, IAS/Princeton) (tbc)
Jean-Benoit Bost (Université Paris-Saclay)
Ana Caraiani (Imperial College London)
Christopher Deninger (Universität Münster)

Conference on "Homology growth in topology and group theory"

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Organiser(s): 
Grigori Avramidi, Dawid Kielak, Roman Sauer
Datum: 
Mon, 13/05/2024 - 09:00 - Fre, 17/05/2024 - 17:00

Conference on "Homology growth in topology and group theory", May 13 - 17, 2024

Homology growth is an umbrella term for a number of invariants associated to a topological space. In their simplest incarnation, they measure the growth of Betti numbers in finite covers of the space. Over the years, homology growth became a central topic in group theory and geometric topology. It connects various topological and geometric phenomena, especially in low-dimensional manifolds, with analytically or combinatorially defined invariants, like L^2-Betti numbers. In particular, homology growth plays a central role in controlling the existence of fiberings, over the circle in the topological setting, and over the integers in the algebraic one. The motivation and guiding principles come from the theory of 3-manifolds.Inspired by Agol's resolution of Thurston's Virtual Fibering Conjecture, homology growth and related ideas have been very recently used both in the algebraic setting of cubulated groups, and in higher dimensional negatively curved manifolds. This conference aims to bring together people behind these recent developments, provide an overview of the field and help formulate a coherent system of conjectures to guide us in the years to come.

In case you have any questions, please contact hogro2024$@$mpim-bonn$.$mpg$.$de.

Registration

The registration is closed as of March 18, 2024.

Minimal Kinematics on $\mathcal{M}_{0,n}$

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Speaker: 
Bernd Sturmfels
Zugehörigkeit: 
MPI for Mathematics in the Sciences, Leipzig
Datum: 
Fre, 26/04/2024 - 11:30 - 13:00
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Math-Phys Seminar

Minimal kinematics identifies likelihood degenerations where the critical points are given by rational formulas. These rest on the Horn uniformization of Kapranov-Huh. We characterize all choices of minimal kinematics on the moduli space $\mathcal{M}_{0,n}$. These choices are motivated by the CHY model in physics and they are represented combinatorially by 2-trees. We compute 2-tree amplitudes, and we explore extensions to non-planar on-shell diagrams, here identified with the hypertrees of Castravet-Tevelev.

Goodbye

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Datum: 
Fre, 05/04/2024 - 17:00 - 17:30
Location: 
MPIM Lecture Hall

Panel discussion: What to do with a PhD in mathematics?

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Speaker: 
Lynn D’eer, Antje Kiesel, Annette Werner, [TBC]
Datum: 
Fre, 05/04/2024 - 15:30 - 17:00
Location: 
MPIM Lecture Hall

Tea & coffee

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Datum: 
Fre, 05/04/2024 - 15:00 - 15:30
Location: 
MPIM Tea Room

Research talk

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Speaker: 
Gianne Derks
Datum: 
Fre, 05/04/2024 - 14:10 - 15:00
Location: 
MPIM Lecture Hall
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