## Activities of SPP2026

On this site you find all conferences, workshops and seminars that have been or will be (financially and organisationally) supported by the DFG priority programme „Geometry at Infinity“.

#### 13/02/2023 | Conference

### Young Geometric Group Theory XI

The YGGT XI is a conference that brings together early career researchers and leading experts working in geometric group theory and related fields covered by the SPP 2026 'Geometry at Infinity', while also promoting current advances in these areas.

**Start: **Monday, 13/02/2023 09:00 am**End: **Friday, 17/02/2023 06:00 pm
**Related project(s):****02**Asymptotic geometry of sofic groups and manifolds**08**Parabolics and invariants**20**Compactifications and Local-to-Global Structure for Bruhat-Tits Buildings**24**Minimal surfaces in metric spaces**28**Rigidity, deformations and limits of maximal representations**48**Profinite and RFRS groups**60**Property (T)**62**A unified approach to Euclidean buildings and symmetric spaces of noncompact type**66**Minimal surfaces in metric spaces II**71**Rigidity, deformations and limits of maximal representations II

#### 19/09/2022 | Conference

### Global Analysis on Manifolds

The conference is focused on research topics related to the scientific work of Christian Bär, and takes place in Freiburg, Germany, shortly after his 60th birthday.

**Start: **Monday, 19/09/2022 08:30 am**End: **Friday, 23/09/2022 02:00 pm

#### 05/09/2022 | Workshop

### Modern advances in geometric group theory

The focus of this workshop is modern advances in the study of infinite groups, under a variety of contexts, many of them related to topology. There is a long history of interaction between groups, geometry, and topology (e.g. Dehn's problems on finitely presented groups) going up to the present day (e.g. use of cubulated groups in Agol's Breakthrough Prize work on 3-manifolds). There have been further advances and new ideas recently in the study of homeomorphism groups, mapping class groups, one-relator groups, right-angled Artin groups, random groups, and the concept of finding "fibrings" of groups, to name just a few. The goal is to bring together experts to explain their work, and then try to use their new methods in neighbouring areas. By doing this we can accelerate the development of new mathematics, and work on solving problems using state of the art techniques.

For further information please visit: sites.google.com/view/modern-advances-ggt

**Start: **Monday, 05/09/2022 09:00 pm**End: **Friday, 09/09/2022 02:00 pm
**Related project(s):****38**Geometry of surface homeomorphism groups**48**Profinite and RFRS groups

#### 22/08/2022 | Workshop

### Minimal surfaces in symmetric spaces and Labourie’s conjecture

The school will focus on minimal surfaces in symmetric spaces, and more specifically on Labourie’s conjecture. The participants (between 20 and 25 participants) will be graduate students, post-docs and young faculty. Following an Arbeitsgemeinschaft format, most of the participants will give a 2-3 hours talk. The organisers will assign the topics and give the necessary references to guide the content of the lectures.

More information available at: math.unice.fr/~jtoulisse/conf/autrans.html

**Start: **Monday, 22/08/2022 09:00 am**End: **Friday, 26/08/2022 06:00 pm
**Related project(s):****51**The geometry of locally symmetric manifolds via natural maps**71**Rigidity, deformations and limits of maximal representations II

#### 28/07/2022 | Conference

### X Bavarian Geometry and Topology Meeting

Continuing a growing tradition, we are happy to announce the X Bavarian Geometry and Topology Meeting!

**Start: **Thursday, 28/07/2022 10:30 am**End: **Thursday, 28/07/2022 05:00 pm

#### 27/06/2022 | Conference

### Geometric structures, compactifications and group actions

The unifying background of the meeting will be rigid differential-geometric structures, such as conformal and projective structures. This refers both to structures locally modelled on homogeneous spaces and to their curved analogues. One topic will be applications of Cartan connections to locally homogeneous structures, their moduli spaces, and compactifications. A related topic will be conformal compactifications such as Poincare-Einstein manifolds, and analogues for other ambient geometries. Another topic will be group actions preserving such structures and their rigidity.

**Start: **Monday, 27/06/2022 09:30 am**End: **Friday, 01/07/2022 04:30 pm
**Related project(s):****01**Hitchin components for orbifolds**07**Asymptotic geometry of moduli spaces of curves**12**Anosov representations and Margulis spacetimes**26**Projective surfaces, Segre structures and the Hitchin component for PSL(n,R)**28**Rigidity, deformations and limits of maximal representations**32**Asymptotic geometry of the Higgs bundle moduli space

#### 27/06/2022 | Conference

### Dirac Operators in Topology, Geometry, and Representation Theory

The intention of this workshop is to explore the fundamental role of Dirac operators, in particular their index theory and their spectral theory, in a variety of areas of Mathematics, including topology, Riemannian, Lorentzian and symplectic geometry, foliations, and representation theory. The goal is to promote this central role of Dirac operators and to employ it in order to foster the interaction between mathematicians in different areas. The meeting will promote new collaborations amongst people working in different fields, but with a common theme and angle of attack.

**Start: **Monday, 27/06/2022 09:00 am**End: **Friday, 01/07/2022 01:30 pm
**Related project(s):****37**Boundary value problems and index theory on Riemannian and Lorentzian manifolds

#### 20/06/2022 | Conference

### Differential Geometry and Geometric Analysis

The conference will be held in honor of Karsten Grove's 75th birthday.

The conference "Differential geometry and geometric analysis" will take place June 20 to June 24, 2022 in Florence, Italy.

Several major themes have been selected for the conference, including:

- Analysis in metric spaces, Geometric group theory, Geometric measure theory,

- Geometric theory of PDE's, Group actions on Riemannian manifolds, Manifolds of positive and nonpositive curvature,

- Metrics with special holonomy, Minimal manifolds and Min-Max Theory, Ricci Flow.

**Start: **Monday, 20/06/2022 09:00 am**End: **Friday, 24/06/2022 06:00 pm
**Related project(s):****15**Spaces and Moduli Spaces of Riemannian Metrics with Curvature Bounds on compact and non-compact Manifolds

#### 13/06/2022 | Conference

### EWM/EMS Summer School "The Cauchy Problem in General Relativity"

**Start: **Monday, 13/06/2022 09:00 am**End: **Friday, 17/06/2022 12:00 pm
**Related project(s):****37**Boundary value problems and index theory on Riemannian and Lorentzian manifolds**41**Geometrically defined asymptotic coordinates in general relativity

#### 07/06/2022 | Conference

### DIFFERENTIAL GEOMETRY IN THE LARGE

The conference at KIT will highlight recent advances in differential geometry and geometric analysis, aiming to foster communication between experts and young researchers as well as identifying potential new directions of further research in these fields.

For more information, see indico.scc.kit.edu/e/DiffGeoLarge2022

**Start: **Tuesday, 07/06/2022 09:00 am**End: **Friday, 10/06/2022 03:00 pm
**Related project(s):****15**Spaces and Moduli Spaces of Riemannian Metrics with Curvature Bounds on compact and non-compact Manifolds