Geometry-Dynamics: Seminare & Veranstaltungen

Seminare und Veranstaltungen

Die Forschungsstelle bietet mehrere regelmäßige Forschungsseminare an:

Das Geometrieseminar ist das gemeinsame Forschungsseminar der Forschungsstelle. Es findet normalerweise jeden Dienstag um 13:00 Uhr in SR C statt. Nach dem Seminar gibt es bei Kaffee und Kuchen Zeit für Diskussionen.

Das Formal Math Seminar findet etwa einmal im Montat dienstags um 16:15 Uhr in SR 3 statt.

Das Seminar über Symplektische Geometrie findet in der Regel mittwochs um 11:15 Uhr in SR 4 statt.

Das Seminar Geometrie und Gruppentheorie findet ebenfalls mittwochs um 11:15 Uhr statt, allerdings in SR 8. Es ersetzt das Differentialgeometrie-Seminar.

Das HEGL Community Seminar wird vom Heidelberg Experimental Geometry Lab (HEGL) organisiert und findet mittwochs um 14:15 Uhr in SR A statt.

Das RTG-Kolloquium war das gemeinsame Kolloquium des Graduiertenkollegs 2229 zusammen mit dem KIT (Karlsruhe) und fand jeden zweiten Dienstag abwechselnd in Heidelberg oder in Karlsruhe statt (bis zum Sommersemester 2025).

Datum

Seminar

Bevorstehende Seminare

Bevorstehende Ereignisse

Vergangene Seminare

Vergangene Ereignisse

Mon, Mar 21

23:00
IWH Heidelberg

Train the trainer - Mentorinnen-Workshop

Mon, May 30

15:00
Hörsaal Mathematikon

Public Lecture: Töne sehen und Muster hören

Sprecher: Jürgen Richter-Gebert

Wed, Jun 22

22:00
Konferenzraum Mathematikon

Mercator-Workshop 2022

Thu, Jul 21

22:00
Hörsaal Mathematikon

Millennium Event: Poincaré Vermutung

Tue, Oct 18

11:00
SR B

TBA (Charles Reid)

Sprecher: Charles Reid

Seminar

Geometry Seminar

Wed, Oct 19

22:00

Workshop in Geometry and Dynamics

Tue, Oct 25

11:30
SR B

Logarithmic girth expander Cayley graphs

Sprecher: Goulnara Arzhantseva

Wed, Oct 26

06:30
SR 4

Junior Workshop in Geometry and Dynamics

Mon, Nov 7

13:15
Online

Benchmarking Machine Learning Methods Using OpenML and mlr3

Sprecher: Sebastian Fischer

Tue, Nov 8

12:45
SR 1067 (KIT Karlsruhe)

Curvature invariants coming from linear programming (Henry Wilton)

Thu, Nov 10

13:00
SR 8

Hyperbolic representations of groups and functions of hyperbolic type: the case SL_2(R)

Sprecher: Gonzalo Ruiz Stolowicz

Fri, Nov 11

14:00
SR 10

Local (semi-)rigidity for boundary actions

Sprecher: Chris Connell

Seminar

Differential Geometry Seminar (DGS)

Tue, Nov 15

15:15
SR 10 and on Zoom

On the geometry of abstract reflection groups

Sprecher: Petra Schwer

Seminar

Geometry Seminar

Wed, Nov 16

10:15
SR 4

Dendrite maps are not that phenomenal

Sprecher: Jakub Tomaszewski

Seminar

Symplectic Geometry Seminar

Mon, Nov 21

13:15
Online

ML for Pure Math

Sprecher: Jim Halverson

Mon, Nov 21

23:00
SR B

Periodic CAT(0) spaces

Sprecher: Stephan Stadler

Mon, Nov 28

11:00
SR C (probably)

TBA (Alba Málaga Saboga)

Sprecher: Alba Málage Sabogal

Seminar

HEGL Community Seminar

Tue, Dec 6

13:45
SR. 1067 (KIT Karlsruhe)

Galois cohomology and absolutely solitary groups (Holger Kammeyer)

Mon, Jan 16

08:00
IWH Heidelberg

Workshop Interplay between symplectic geometry and cluster theory

Mon, Jan 23

13:15
SR C

TBA (Saul Schleimer)

Sprecher: Saul Schleimer

Seminar

HEGL Community Seminar

Tue, Jan 24

13:45

The natural flow and homological vanishing in nonpositively curved manifolds (Chris Connell)

Tue, Feb 7

12:30
SR B

Broken books and Reeb dynamics in dimension 3

Sprecher: Ana Rechtman

Sun, Feb 26

23:00
Konferenzraum Mathematikon

Pseudoholomorphic Curves in Hamiltonian Dynamics

Tue, Apr 18

13:45
Karlsruhe

On the Farrell-Jones Conjecture (Wolfgang Lück)

Seminar

RTG Colloquium Karlsruhe

Thu, Apr 20

13:00
SR 8

Divisible convex sets with properly embedded cones

Seminar

Differential Geometry Seminar (DGS)

Tue, Apr 25

11:00
SR B

Random polytopes in Non-Euclidean Geometries

Sprecher: Daniel Rosen

Seminar

Geometry Seminar

Wed, Apr 26

09:15
SR 4

On the Origin of Minimal Sets by Means of Feral Curves

Seminar

Symplectic Geometry Seminar

Thu, Apr 27

12:00
SR 7

Character varieties for non-orientable surfaces

Sprecher: Tommaso Scognamiglio

Seminar

Differential Geometry Seminar (DGS)

Tue, May 2

08:00
SR B

Infinite staircases in the symplectic ball packing problem

Sprecher: Ana Rita Pires

Seminar

RTG Colloquium

Wed, May 3

09:15
SR 4

Aspects of Extended Mirror Symmetry

Seminar

Symplectic Geometry Seminar

Mon, May 8

12:15

On the area of Lawson surfaces in the 3-sphere

Sprecher: Martin Traizet

Seminar

HEGL Community Seminar

Wed, May 10

09:15
SR 4

Kiruma's Conjecture

Sprecher: Alec Metsch

Seminar

Symplectic Geometry Seminar

Tue, May 16

08:00
Karlsruhe

Arithmetic approximate lattices and their finiteness properties (Stefan Witzel)

Seminar

RTG Colloquium Karlsruhe

Mon, May 22

12:15

Movement of light : tiling billiards and films.

Sprecher: Olga Romaskevich

Seminar

HEGL Community Seminar

Tue, May 23

09:15
00.200

Existence of Birkhoff sections for geodesic flows on closed orientable Riemannian surfaces

Sprecher: Lina Deschamps

Seminar

Symplectic Geometry Seminar

Wed, May 24

09:15
SR 4

Bicycling curves and the filament hierarchy

Seminar

Symplectic Geometry Seminar

Wed, May 24

15:00
Hörsaal Mathematikon

Public Lecture: Unentscheidbare Probleme in der Mathematik

Sprecher: Katrin Tent

Thu, May 25

12:00
SR 8

Burnside Groups and iterated small cancellation theory

Sprecher: Katrin Tent

Seminar

Differential Geometry Seminar (DGS)

Tue, May 30

11:00
SR B

Higgs bundles in the Hitchin section over non-compact surfaces

Sprecher: Qiongling Li

Seminar

Geometry Seminar

Wed, May 31

09:15
SR 4

Local Floer Homology(ies?)

Seminar

Symplectic Geometry Seminar

Tue, Jun 6

11:30
SR B

Affine geometry and the Auslander Conjecture

Sprecher: Jeffrey Danciger

Seminar

RTG Colloquium

Wed, Jun 7

09:15
SR 4

TBA (Anastasiia Sharipova)

Sprecher: Anastasiia Sharipova

Seminar

Symplectic Geometry Seminar

Tue, Jun 13

11:00
SR B

Surfaces of section, Anosov Reeb flows, and the C2-stability conjecture for geodesic flows

Sprecher: Marco Mazzucchelli

Seminar

Geometry Seminar

Wed, Jun 14

09:15
SR 4

On the local maximizers of higher capacity ratios

Sprecher: Marco Mazzucchelli

Seminar

Symplectic Geometry Seminar

Thu, Jun 15

12:21
SR 8

Random Geometries of Constant Curvature: from Condensed Matter Physics to the Combinatorics of Self-Overlapping Curves through Black Holes

Sprecher: Frank Ferrari

Seminar

Differential Geometry Seminar (DGS)

Fri, Jun 16

13:00
SR 7

Hitchin Connection for parabolic bundles

Sprecher: Swarnava Mukhopadhyay

Seminar

Differential Geometry Seminar (DGS)

Tue, Jun 20

08:00
Karlsruhe

On the homology of diffeomorphism groups of odd-dimensional manifolds (Johannes Ebert)

Seminar

RTG Colloquium Karlsruhe

Wed, Jun 21

09:15
SR 4

Polynomial growth of Reeb orbits

Sprecher: Bernhard Albach

Seminar

Symplectic Geometry Seminar

Mon, Jun 26

12:15

TBA (Philip Engel)

Sprecher: Philip Engel

Seminar

HEGL Community Seminar

Tue, Jun 27

09:00
IWH Heidelberg

Heidelberg-Karlsruhe-Strasbourg Geometry Day

Wed, Jun 28

09:15
SR 4

TBA (Michael Rothgang)

Sprecher: Michael Rothgang

Seminar

Symplectic Geometry Seminar

Tue, Jul 4

11:30

Hyperbolicity and products

Sprecher: Indira Chatterji

Seminar

RTG Colloquium

Thu, Jul 6

06:30
Marsilius Arkaden

Mercator Workshop 2023

Wed, Jul 12

09:15
SR 4

First Steps in Twisted Rabinowitz-Floer Homology

Sprecher: Yannis Bähni

Seminar

Symplectic Geometry Seminar

Mon, Jul 17

12:15
SR C

Interpretable Representations and Neuro-symbolic Methods in Deep Learning

Sprecher: Jan Stühmer

Seminar

HEGL Mathematics and Machine Learning Seminar

Tue, Jul 18

11:45
Karlsruhe - SR 1067

Generalized non-positive curvature and higher-rank hyperbolicity (Urs Lang)

Seminar

RTG Colloquium Karlsruhe

Wed, Jul 19

09:15
SR 4

Convex Bodies with all Planar Characteristics

Sprecher: Anastasiia Sharipova

Seminar

Symplectic Geometry Seminar

Thu, Jul 20

12:00
SR 8

Asymptotics of minimal surfaces in SL(3,R)/SO(3) along rays

Sprecher: Andrea Tamburelli

Seminar

Differential Geometry Seminar (DGS)

Fri, Jul 21

11:30
Konferenzraum Mathematikon

BACH Seminar

Mon, Jul 24

12:15
SR C

From illustration to discovery: two examples

Sprecher: Arnaud Chéritat

Seminar

HEGL Community Seminar

Tue, Jul 25

11:00
SR B

Planar networks and simple Lie groups

Sprecher: Anton Izosimov

Seminar

Geometry Seminar

Thu, Jul 27

09:15
online

Boundary rigidity and filling minimality via the barycenter method

Sprecher: Yuping Ruan

Seminar

Differential Geometry Seminar (DGS)

Thu, Jul 27

22:00
TBD

Bending maps of Teichmüller spaces and character varieties

Sprecher: Shinpei Baba

Seminar

Differential Geometry Seminar (DGS)

Mon, Sep 18

07:00
Hörsaal

Diverse Aspects of Groups, Geometry and Dynamics (RTG Conference)

Mon, Sep 18

07:00
Hörsaal

Diverse Aspects of Groups, Geometry and Dynamics

Seminar

Conference

Mon, Oct 23

11:06
0.200

Density of thin film reflection pseudogroup in Hamiltonian symplectomorphism pseudogroup

Sprecher: Alexey Glutsyuk

Seminar

Symplectic Geometry Seminar

Tue, Oct 24

11:30

On rationally integrable planar dual and projective billiards

Sprecher: Alexey Glutsyuk

Seminar

RTG Colloquium

Wed, Oct 25

12:27
SR 4

Construction of non-loose knots via cabling

Sprecher: Rima Chatterjee

Seminar

Symplectic Geometry Seminar

Tue, Nov 7

10:45

Equidistribution of planes in four space and Seifert surfaces (Menny Aka)

Seminar

RTG Colloquium Karlsruhe

Wed, Nov 8

10:15
Seminar room 4

On Babylonian lunar periods and Conley–Zehnder indices of the CR3BP (Cengiz Aydin)

Sprecher: Cengiz Aydin

Seminar

Symplectic Geometry Seminar

Tue, Nov 14

12:00
SRB

From Lagrangians in Hitchin systems to pillowcase covers

Sprecher: Johannes Horn

Seminar

Geometry Seminar

Thu, Nov 16

08:00
IRMA, Strasbourg

Strasbourg-Heidelberg "Symplectic Day"

Tue, Nov 21

12:30
Seminarraum B

Boomerang subgroups

Sprecher: Waltraud Lederle

Seminar

RTG Colloquium

Wed, Nov 22

10:15
SR4

Self-dual polygons (Ana Chavez Caliz)

Sprecher: Ana Chavez Caliz

Seminar

Symplectic Geometry Seminar

Tue, Nov 28

12:00
SR B

Orbifold Intersection Theory and Polyfold Gromov-Witten Invariants

Sprecher: Wolfgang Schmaltz

Seminar

Geometry Seminar

Wed, Nov 29

10:15
Seminar room 4

Stein traces (Marc Kegel)

Seminar

Symplectic Geometry Seminar

Thu, Nov 30

15:15
SR 5

Parkettierung in der hyperbolischen Geometrie (Melanie Pfau)

Sprecher: Melanie Pfau

Tue, Dec 5

10:45

Manifolds which carry infinitely many geometrically distinct metrics of positive Ricci or nonnegative sectional curvature (Anand Dessai)

Seminar

RTG Colloquium Karlsruhe

Mon, Dec 11

13:15
HEGL / Foyer basement

HEGL Christmas party

Mon, Dec 18

13:15
Seminar room C

Improvising a mathematical crochet course for beginners

Sprecher: Nguyen-Thi Dang

Seminar

HEGL Community Seminar

Tue, Dec 19

13:04
SR B

Isometric embeddings of Teichmüller spaces

Sprecher: Frederik Benirschke

Seminar

Geometry Seminar

Wed, Jan 10

10:15
SR 4

Hofer Zehnder capacities and magnetic billiards

Sprecher: Levin Maier

Seminar

Symplectic Geometry Seminar

Tue, Jan 16

12:30
Seminar room B

Geodesic representatives on surfaces without metrics

Sprecher: W. Patrick Hooper

Seminar

RTG Colloquium

Wed, Jan 17

10:15
Konferenzraum 5/104

Weak Stability Boundary and Mandelbrot Sets

Sprecher: Edward Belbruno

Seminar

Symplectic Geometry Seminar

Tue, Jan 23

12:00
SR B

The asymptotic action of area preserving disk maps and some of its properties

Sprecher: David Bechara Senior

Seminar

Geometry Seminar

Wed, Jan 24

10:15
SR 4

A vanishing theorem in Siefring’s intersection theory

Sprecher: Naageswaran Manikandan

Seminar

Symplectic Geometry Seminar

Tue, Jan 30

10:45

PDE aspects of geometric flows (Peter Topping)

Seminar

RTG Colloquium Karlsruhe

Thu, Mar 14

16:00
SR 5

Understanding the Mapping Class Group via its Effect on Loops

Sprecher: Luca Morris Tittel

Wed, Apr 17

09:15
Seminar room 4, 3rd floor

Recent results about C0-rigidity for Legendrians

Sprecher: Georgios Dimitroglou Rizell

Seminar

Symplectic Geometry Seminar

Thu, Apr 18

14:00
SR8

q-deformed numbers: geometry and combinatorics

Sprecher: Valentin Ovsienko

Seminar

Geometry and Group Theory Seminar

Fri, Apr 19

12:00
Conference Room Mathematikon

BACH Seminar 2024

Seminar

Conference

Mon, Apr 22

14:15
Seminarraum C

Sketchnotes, comics, and mathematics. New and old formats for maths communication.

Sprecher: Constanza Rojas-Molina

Seminar

HEGL Community Seminar

Tue, Apr 23

09:45

Bounded cohomology and displacement (Francesco Fournier-Facio)

Seminar

RTG Colloquium Karlsruhe

Wed, Apr 24

11:00
Seminar room 4, 3rd floor

A Poincaré-Birkhoff theorem for asymptotically linear Hamiltonian diffeomorphisms (Leonardo Masci)

Sprecher: Leonardo Masci

Seminar

Symplectic Geometry Seminar

Wed, Apr 24

12:00
Seminar room 4, Mathematikon 3rd floor

Permanent capture and weak capture for infinitely many cycles (Ed Belbruno)

Sprecher: Edward Belbruno

Seminar

Symplectic Geometry Seminar

Thu, Apr 25

10:00

Girls'Day Workshop: Von Bienen, Drachen und Hüten: Polygonale und aperiodische Parkettierungen in der Mathematik

Tue, Apr 30

13:00
SR B

Gromov width via finite energy foliations of tangent bundles

Sprecher: Johanna Bimmermann

Seminar

Geometry Seminar

Mon, May 6

14:15
Seminar Room C

Crossing lines: from graphs to surfaces

Sprecher: Hugo Parlier

Seminar

HEGL Community Seminar

Tue, May 7

11:30
Seminarraum B

Geometry of graphs of multicurves

Sprecher: Katie Vokes

Seminar

RTG Colloquium

Wed, May 8

11:15
Seminar room 4, 3rd floor Mathematikon

On a hyperkähler view of the magnetic geodesic flow on CP^n

Sprecher: Lina Deschamps

Seminar

Symplectic Geometry Seminar

Wed, May 8

11:15

On a hyperkähler view of the magnetic geodesic flow on CP^n

Sprecher: Lina Deschamps

Seminar

Symplectic Geometry Seminar

Tue, May 14

13:00
SR C

The search for exotic knot traces

Sprecher: Marc Kegel

Seminar

Geometry Seminar

Thu, May 16

14:15
SR 8

Bridges between affine buildings and symmetric spaces

Sprecher: Raphael Appenzeller

Seminar

Geometry and Group Theory Seminar

Thu, May 16

16:15
SR 7

Cycle Decompositions of Graphs with High Minimum Degree

Sprecher: Anna-Sophie Sawitzki

Tue, May 21

13:00
SR C

4th Body-Induced Secondary Resonance Overlap Inside Normally Hyperbolic Invariant Manifolds in Planet-Moon Systems: a Jovian Case Study

Seminar

Geometry Seminar

Wed, May 22

11:15

TBA

Sprecher: Agustin Moreno

Seminar

Symplectic Geometry Seminar

Thu, May 23

16:15
SR 7

Curve complexes are rigid

Sprecher: Karl Schamel

Wed, May 29

11:15

Does Newtonian dynamics need a Euclidean space?

Sprecher: Alain Albouy

Seminar

Symplectic Geometry Seminar

Mon, Jun 3

12:15
Seminarraum C

Can you build a Turing machine out of Lego?

Sprecher: Aurélien Alvarez

Seminar

HEGL Community Seminar

Tue, Jun 4

14:15
SR 8

The Harder-Narasimhan reduction of a principal bundle

Sprecher: Emanuel Roth

Tue, Jun 11

11:30
Seminarraum B

Contacting Turing (From Cantor sets to "Flubits")

Sprecher: Eva Miranda

Seminar

RTG Colloquium

Thu, Jun 13

14:15
SR 8

Projectivity Groups of Spherical Buildings

Sprecher: Sira Busch

Seminar

Geometry and Group Theory Seminar

Tue, Jun 18

13:00
SR C

Arnold's $J^+$-invariant and periodic orbits

Sprecher: Urs Frauenfelder

Seminar

Geometry Seminar

Thu, Jun 20

14:15
SR 5

Gleichseitige Triangulierungen der Sphäre

Sprecher: Verena Waibel

Thu, Jun 20

14:15
SR 8

Real algebraic varieties close to non-singular tropical limits

Sprecher: Johannes Rau

Seminar

Geometry and Group Theory Seminar

Thu, Jun 20

16:15
SR 7

Monotone twist maps in dynamical billiard systems

Sprecher: Abdul Kerim Sehi

Tue, Jun 25

09:45

From RAAGs to Artin groups (Conchita Martínez Pérez)

Seminar

RTG Colloquium Karlsruhe

Wed, Jun 26

09:15
Seminar room 9

Open r-spin and FJRW theory via the point insertion technique.

Sprecher: Yitzhen Zhao

Seminar

Symplectic Geometry Seminar

Wed, Jun 26

11:15
Seminar room 4

Bourgeois' contact structures are tight

Sprecher: Russell Avdek

Seminar

Symplectic Geometry Seminar

Thu, Jun 27

14:15
SR 8

Mapping degree sets between manifolds

Sprecher: Matthias Uschold

Seminar

Geometry and Group Theory Seminar

Thu, Jun 27

16:15
SR 7

Approximately counting Hamilton cycles in dense directed graphs

Sprecher: Jonas Hofsaess

Tue, Jul 2

13:00
SR C

Poisson geometric approach to exotic cluster structures on simple Lie groups

Sprecher: Michael Gekhtman

Seminar

Geometry Seminar

Tue, Jul 2

17:00
Hörsaal

Symmetrie in der Mathematik: witzig, wichtig, wunderlich

Sprecher: Pascal Schweitzer

Tue, Jul 2

17:00
Hörsaal

Symmetrie in der Mathematik: witzig, wichtig, wunderlich

Sprecher: Pascal Schweitzer

Wed, Jul 3

11:15
Seminar room 4

Contact geometry of Hill's approximation to a spatial restricted 4-body problem

Sprecher: Cengiz Aydin

Seminar

Symplectic Geometry Seminar

Thu, Jul 4

14:15
SR 8

Degenerate Brion's formula and applications to symmetric spaces and affine buildings

Sprecher: Carsten Peterson

Seminar

Geometry and Group Theory Seminar

Thu, Jul 4

16:15
SR 7

Equivariant Cohomology of Real Varieties

Sprecher: Liva Diler

Tue, Jul 9

11:30
SR C

Elastica, filament equation, and bicycle models

Sprecher: Sergei Tabachnikov

Seminar

RTG Colloquium

Wed, Jul 10

11:15
Seminar room 4

High-dimensional families of holomorphic curves and three-dimensional energy surfaces (Rohil Prasad)

Sprecher: Rohil Prasad

Seminar

Symplectic Geometry Seminar

Thu, Jul 11

16:15
SR 7

Motif-free Graph Generation

Sprecher: Dominik Schweisgut

Mon, Jul 15

16:15
SR 11

Outer symplectic billiard on Lagrangian submanifolds

Sprecher: Colin Kühner

Tue, Jul 16

13:00
SR C

Entropy and links in 3D flows

Sprecher: Matthias Meiwes

Seminar

Geometry Seminar

Wed, Jul 17

11:15
Seminar room 4

(Non-) orderability and the contact Hofer diameter (Jakob Hedicke, CRM)

Sprecher: Jakob Hedicke

Seminar

Symplectic Geometry Seminar

Wed, Jul 17

14:15
SR C

Final presentations of the HEGL Student Seminar

Seminar

HEGL Community Seminar

Thu, Jul 18

14:15
SR 12

Hamiltonian diffeomorphisms of even-dimensional balls and Reeb flows on odd-dimensional spheres

Sprecher: Stefan Langenberg

Thu, Jul 18

14:15
SR 8

On the Unique Ergodicity for Foliations of Generic Abelian Differentials

Sprecher: Hamid Al-Saqban

Seminar

Geometry and Group Theory Seminar

Thu, Jul 18

16:15
SR 7

Cell Complexes in Homotopy Type Theory

Sprecher: Chenyi Yang

Mon, Jul 22

07:00
IWH Heidelberg

Symplectic Geometry and Anosov Flows

Seminar

Conference

Tue, Jul 23

13:00
Seminarraum C

Benjamini-Schramm limits of high genus translation surfaces

Sprecher: Kasra Rafi

Seminar

Geometry Seminar

Mon, Jul 29

12:15
Seminar room 4, 3rd floor

Taut foliations through a contact lens (Thomas Massoni)

Sprecher: Thomas Massoni

Seminar

Symplectic Geometry Seminar

Thu, Aug 1

16:15
SR 7

Matchings of Induced Subgraphs

Sprecher: Leon Weiss

Wed, Sep 18

13:45

Lattice Polytopes and Degeneration in Representation Theory

Sprecher: Ibrahim Ahmad

Seminar

Geometry and Group Theory Seminar

Tue, Oct 29

13:30
Seminar room C

Billiards in Rational Prisms

Sprecher: Jayadev Athreya

Seminar

RTG Colloquium

Wed, Oct 30

11:15
Seminar room 4

How to build a local Floer homology (Arthur Limoge)

Sprecher: Arthur Limoge

Seminar

Symplectic Geometry Seminar

Mon, Nov 4

14:15
Seminar Room C

Teaching proof to new undergraduates with the Lean interactive theorem prover

Sprecher: Gihan Marasingha

Seminar

HEGL Community Seminar

Tue, Nov 5

09:00
Conference Room, INF 205, 69120 Heidelberg

A stellar afternoon in symplectic dynamics

Seminar

Conference

Wed, Nov 6

11:15
SR4

Outer symplectic billiards

Sprecher: Ana Chavez Caliz

Seminar

Symplectic Geometry Seminar

Tue, Nov 12

16:37
SR. 1.067, KIT institute

Invariant theory, without groups (Marco Radeschi)

Seminar

RTG Colloquium Karlsruhe

Wed, Nov 13

11:15
Seminar room 4

The number of periodic points of surface symplectomorphisms (Marcelo Atallah)

Sprecher: Marcelo Atallah

Seminar

Symplectic Geometry Seminar

Tue, Nov 19

13:00
SR C

Contact non-squeezing in various closed prequantizations

Sprecher: Pierre-Alexandre Arlove

Seminar

Geometry Seminar

Wed, Nov 20

11:15
Seminar room 4

The Hofer-Zehnder capacity of the disk bundle $D_1L(p;1,\cdots,1)$.

Sprecher: Erik Fink

Seminar

Symplectic Geometry Seminar

Tue, Nov 26

13:07
Seminarraum C

(Infinite-dimensional) Differential Geometry and Applications

Sprecher: Alice Barbara Tumpach

Seminar

RTG Colloquium

Thu, Nov 28

13:15
SR 8

Polyhedral compactifications of Bruhat-Tits buildings

Sprecher: Dorian Chanfi

Seminar

Geometry and Group Theory Seminar

Tue, Dec 3

13:00
SR C

The geometry of Hamiltonian Floer theory on surfaces

Sprecher: Dustin Connery-Grigg

Seminar

Geometry Seminar

Wed, Dec 4

11:15
Seminar room 4

(TBA) Simon Vialeret

Sprecher: Simon Vialeret

Seminar

Symplectic Geometry Seminar

Mon, Dec 16

15:00
HEGL

HEGL Winter Activity and Christmas Party 2024

Tue, Dec 17

13:00
SR C

Conley index and its relative cup-length

Sprecher: Maciej Starostka

Seminar

Geometry Seminar

Tue, Jan 14

13:30

The Fenchel-Nielsen parameters for infinite Riemann surfaces and the geodesic flow

Sprecher: Dragomir Saric

Seminar

RTG Colloquium

Mon, Jan 20

14:15
SR C

News articles, Columns, Podcasts and TikTok: How to communicate math on different levels.

Sprecher: Manon Bischoff

Seminar

HEGL Community Seminar

Tue, Jan 21

13:00
SR C

Towards the h-principle for non-local differential relations

Sprecher: Álvaro del Pino Gómez

Seminar

Geometry Seminar

Thu, Jan 23

16:15
SR 3

The topology of loop spaces

Sprecher: Janina Planeta

Thu, Jan 30

16:15
SR 3

On a proof of the Kahn-Kalai conjecture

Sprecher: Paul Bruckert

Tue, Feb 4

16:15
SR 4

Formalization of diagram chasing as a first-order logic in proof assistants

Sprecher: Matthieu Piquerez

Seminar

Formal Math Seminar

Wed, Feb 5

14:15
SR 3

How to turn mathematical proofs into a game?

Sprecher: Students of the HEGL Illustrating Mathematics Seminar

Seminar

HEGL Community Seminar

Thu, Feb 13

16:15
SR 3

K_k-Pillars in Graphs with Constant Average Degree

Sprecher: Amrei Mihan

Tue, Feb 25

09:00
SR 4

Mini-Workshop "Buildings, galleries and beyond"

Sprecher: Sarah Häberle

Thu, Apr 3

09:00
2.414

Girls' Day: Tapetenmustergruppen

Wed, Apr 16

13:00

Contact structures on S^5

Sprecher: Kai Zehmisch

Seminar

Symplectic Geometry Seminar

Tue, Apr 22

13:00
SR C

Almost toric fibrations on K3 surfaces (Pranav Chakravarthy)

Sprecher: Pranav Chakravarthy

Seminar

Geometry Seminar

Thu, Apr 24

16:15
SR 4

Hamiltonicity of C-Expanders

Sprecher: Mathias Häberle

Tue, Apr 29

11:45
SR. 1.067 KIT

Applications of smoothing theory to 4-manifolds (Mark Powell)

Seminar

RTG Colloquium Karlsruhe

Tue, May 6

01:00
SR C

Generic analytic convex billiards exhibit chaotic behavior

Sprecher: Inma Baldomá Barraca

Seminar

Geometry Seminar

Tue, May 13

13:30
EG, Seminarraum C

Schottky groups and Berkovich spaces (Carlos Matheus Silva Santos)

Sprecher: Carlos Matheus Silva Santos

Seminar

RTG Colloquium

Wed, May 21

14:15
SR A

Teaching mathematics using Lean: Insights from students and lecturers

Sprecher: Athina Thoma

Seminar

HEGL Community Seminar

Thu, May 22

13:15
SR 8

Connection points on translation surfaces

Sprecher: Julien Boulanger

Seminar

Geometry and Group Theory Seminar

Mon, May 26

13:00
SR 8

Locally compact Artin groups and their finiteness properties

Sprecher: Yuri Santos Rego

Seminar

Geometry and Group Theory Seminar

Tue, Jun 3

13:00
SR C

Symplectically orthogonal Hamiltonian actions of Lie groups (matrix groups vs diffeomorphism groups)

Sprecher: Cornelia Vizman

Seminar

Geometry Seminar

Tue, Jun 10

13:00
SR C

Conservative systems and boomerang subgroups

Sprecher: Waltraud Lederle

Seminar

Geometry Seminar

Tue, Jun 17

11:18
EG, Seminarraum C

Dynamics and rigidity of surface flows (Corinna Ulcigrai)

Sprecher: Corinna Ulcigrai

Seminar

RTG Colloquium

Wed, Jun 25

14:15
INF 205, SR A

Computation and classification in algebraic geometry

Sprecher: Pieter Belmans

Seminar

HEGL Community Seminar

Thu, Jun 26

16:00
SR 4

Simplicial affine buildings and Z-buildings

Sprecher: Martin Koch

Tue, Jul 1

13:00
SR C

Geometric invariants of TDLC completions

Sprecher: Ilaria Castellano

Seminar

Geometry Seminar

Wed, Jul 2

17:00
Hörsaal Mathematikon

Mathematische Experimente

Sprecher: Albrecht Beutelspacher

Thu, Jul 3

13:15
SR 8

Quadratic equations in wreath products of abelian groups

Sprecher: Leon Pernak

Seminar

Geometry and Group Theory Seminar

Thu, Jul 10

13:15
SR 8

On the saddle connection graph of the golden L

Sprecher: Antoine Cuvelier

Seminar

Geometry and Group Theory Seminar

Thu, Jul 10

17:30
SR 4

Formalizing Dedekind cuts in Lean

Sprecher: Felix Lentze

Mon, Jul 14

10:00

Workshop: Billiards and quantitative symplectic geometry

Seminar

Conference

Thu, Jul 17

13:15
SR 8

A combination theorem for homological properties of groups

Sprecher: Kevin Li

Seminar

Geometry and Group Theory Seminar

Tue, Jul 22

13:15
SR C

Poisson Voronoi tesselations on hyperbolic space

Sprecher: Nat Kendal-Freedman

Seminar

Geometry Seminar

Mon, Jul 28

14:00
Hürsaal

Mathematische Aspekte in der Meereisvorhersag

Sprecher: Carolin Mehlmann

Seminar

Conference

Wed, Jul 30

09:30
Hörsaal

Infinite groups and their automorphisms

Sprecher: Elia Fioravanti

Seminar

Conference

Thu, Aug 7

14:00
SR 3

Gaussian elimination in Lean

Sprecher: Sebastian Grafe

Mon, Sep 22

11:00
SR 4

Introduction to Dessins d’enfant

Sprecher: Daniel Geisler

Tue, Oct 28

13:00
SR C

Fibrations and Nilpotent Groups

Sprecher: Kevin Klinge

Seminar

Geometry Seminar

Tue, Nov 4

13:00
SR C

High-dimensional expansion of KMS complexes

Sprecher: Inga Valentiner-Branth

Seminar

Geometry Seminar

Tue, Nov 11

13:00
SR C

Markov staircases

Sprecher: Joé Brendel

Seminar

Geometry Seminar

Tue, Nov 18

13:00
SR C

TBA (Karla Leipold)

Sprecher: Karla Leipold

Seminar

Geometry Seminar

Tue, Dec 2

13:00
SR C

TBA (Jakob Dittmer)

Sprecher: Jakob Dittmer

Seminar

Geometry Seminar

Tue, Dec 9

13:00
SR C

Existence of fibrations over coset spaces

Sprecher: Raquel Murat García

Seminar

Geometry Seminar

Tue, Dec 16

13:00
SR C

Markov numbers and symplectic embeddings

Sprecher: Felix Schlenk

Seminar

Geometry Seminar

Tue, Jan 13 2026

13:00
SR C

TBA (Emanuele Delucchi)

Sprecher: Emanuele Delucchi

Seminar

Geometry Seminar

Tue, Jan 20 2026

13:00
SR C

TBA (Mar Giralt)

Sprecher: Mar Giralt

Seminar

Geometry Seminar

Wed, Jun 10 2026

09:00
Conference Room

Rich problems in Geometry and Dynamics

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