Seminar, Differential geometry and general relativity

Hans Ringström: Initial data on big bang singularities

6 Mar

Seminar, Differential geometry and general relativity

Thursday 2025-03-06, 10:00 - 11:00

Participating: Hans Ringström, KTH

Location: 3418, Lindstedtsvägen 25

2025-03-06T10:00:00.000+01:00 2025-03-06T11:00:00.000+01:00 Hans Ringström: Initial data on big bang singularities (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Hans Ringström: Initial data on big bang singularities (Seminar, Differential geometry and general relativity)

Andrés Franco Grisales: Developments of initial data on big bang singularities for the Einstein-nonlinear scalar field equations

13 Mar

Seminar, Differential geometry and general relativity

Thursday 2025-03-13, 10:00 - 11:00

Participating: Andres Franco Grisales, KTH

Location: 3418, Lindstedtsvägen 25

2025-03-13T10:00:00.000+01:00 2025-03-13T11:00:00.000+01:00 Andrés Franco Grisales: Developments of initial data on big bang singularities for the Einstein-nonlinear scalar field equations (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Andrés Franco Grisales: Developments of initial data on big bang singularities for the Einstein-nonlinear scalar field equations (Seminar, Differential geometry and general relativity)

Alberto Richtsfeld: Index theory for geometric elliptic differential operators of first order

20 Mar

Seminar, Differential geometry and general relativity

Thursday 2025-03-20, 10:00 - 11:00

Participating: Alberto Richsfeld, Stockholm University

Location: 3418, Lindstedtsvägen 25

2025-03-20T10:00:00.000+01:00 2025-03-20T11:00:00.000+01:00 Alberto Richtsfeld: Index theory for geometric elliptic differential operators of first order (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Alberto Richtsfeld: Index theory for geometric elliptic differential operators of first order (Seminar, Differential geometry and general relativity)

Maxwell Stolarski: On the Structure of Singularities of Mean Curvature Flows with Mean Curvature Bounds

15 Apr

Seminar, Differential geometry and general relativity

Tuesday 2025-04-15, 13:00 - 14:00

Participating: Maxwell Stolarski, University of Warwick

Location: 3418, Lindstedtsvägen 25

2025-04-15T13:00:00.000+02:00 2025-04-15T14:00:00.000+02:00 Maxwell Stolarski: On the Structure of Singularities of Mean Curvature Flows with Mean Curvature Bounds (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Maxwell Stolarski: On the Structure of Singularities of Mean Curvature Flows with Mean Curvature Bounds (Seminar, Differential geometry and general relativity)

Reto Buzano: Mean curvature flow and mean-convex embeddings in three-manifolds

22 Apr

Seminar, Differential geometry and general relativity

Tuesday 2025-04-22, 10:00 - 11:00

Participating: Reto Buzano, University of Turin

Location: 3721, Lindstedtsvägen 25

2025-04-22T10:00:00.000+02:00 2025-04-22T11:00:00.000+02:00 Reto Buzano: Mean curvature flow and mean-convex embeddings in three-manifolds (Seminar, Differential geometry and general relativity) 3721, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Reto Buzano: Mean curvature flow and mean-convex embeddings in three-manifolds (Seminar, Differential geometry and general relativity)

Stephen Lynch: Canonical foliation of bubblesheets

20 May

Seminar, Differential geometry and general relativity

Tuesday 2025-05-20, 10:00 - 11:00

Participating: Stephen Lynch, King's College London

Location: D41, Lindstedtsvägen 9

2025-05-20T10:00:00.000+02:00 2025-05-20T11:00:00.000+02:00 Stephen Lynch: Canonical foliation of bubblesheets (Seminar, Differential geometry and general relativity) D41, Lindstedtsvägen 9 (KTH, Stockholm, Sweden)Stephen Lynch: Canonical foliation of bubblesheets (Seminar, Differential geometry and general relativity)

Noa Vikman: On the Existence of Harmonic Surfaces in Metric Spaces

27 May

Seminar, Differential geometry and general relativity

Tuesday 2025-05-27, 10:00 - 11:00

Participating: Noa Vikman, University of Fribourg

Location: 3418, Lindstedtsvägen 25

2025-05-27T10:00:00.000+02:00 2025-05-27T11:00:00.000+02:00 Noa Vikman: On the Existence of Harmonic Surfaces in Metric Spaces (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Noa Vikman: On the Existence of Harmonic Surfaces in Metric Spaces (Seminar, Differential geometry and general relativity)

István Rácz: Hyperboloidal initial data without logarithmic singularities

3 Jun

Seminar, Differential geometry and general relativity

Tuesday 2025-06-03, 10:00 - 11:00

Participating: István Rácz, Wigner RCP

Location: 3418, Lindstedtsvägen 25

2025-06-03T10:00:00.000+02:00 2025-06-03T11:00:00.000+02:00 István Rácz: Hyperboloidal initial data without logarithmic singularities (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)István Rácz: Hyperboloidal initial data without logarithmic singularities (Seminar, Differential geometry and general relativity)

Sven Hirsch: Positive scalar curvature in Dimension 3

24 Jun

Seminar, Differential geometry and general relativity

Tuesday 2025-06-24, 10:00 - 11:00

Participating: Sven Hirsch, Columbia University

Location: 3418, Lindstedtsvägen 25

2025-06-24T10:00:00.000+02:00 2025-06-24T11:00:00.000+02:00 Sven Hirsch: Positive scalar curvature in Dimension 3 (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Sven Hirsch: Positive scalar curvature in Dimension 3 (Seminar, Differential geometry and general relativity)

Louis Yudowitz: Overview of a proof of the Index Theorem using stochastic calculus

11 Sep

Seminar, Differential geometry and general relativity

Thursday 2025-09-11, 10:00 - 11:00

Participating: Louis Yudowitz, KTH

Location: 3418, Lindstedtsvägen 25

2025-09-11T10:00:00.000+02:00 2025-09-11T11:00:00.000+02:00 Louis Yudowitz: Overview of a proof of the Index Theorem using stochastic calculus (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Louis Yudowitz: Overview of a proof of the Index Theorem using stochastic calculus (Seminar, Differential geometry and general relativity)

Jonathan Glöckle: Initial data rigidity and spacetimes

18 Sep

Seminar, Differential geometry and general relativity

Thursday 2025-09-18, 10:00 - 11:00

Participating: Jonathan Glöckle, KTH

Location: 3418, Lindstedtsvägen 25

2025-09-18T10:00:00.000+02:00 2025-09-18T11:00:00.000+02:00 Jonathan Glöckle: Initial data rigidity and spacetimes (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Jonathan Glöckle: Initial data rigidity and spacetimes (Seminar, Differential geometry and general relativity)

Klaus Kröncke: Some isolation and stability results for Einstein manifolds

25 Sep

Seminar, Differential geometry and general relativity

Thursday 2025-09-25, 10:00 - 11:00

Participating: Klaus Kröncke, KTH

Location: 3418, Lindstedtsvägen 25

2025-09-25T10:00:00.000+02:00 2025-09-25T11:00:00.000+02:00 Klaus Kröncke: Some isolation and stability results for Einstein manifolds (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Klaus Kröncke: Some isolation and stability results for Einstein manifolds (Seminar, Differential geometry and general relativity)

Jakob Reiffenstein: Quantitative formulae for the Weyl coefficient of a canonical system

9 Oct

Seminar, Differential geometry and general relativity

Thursday 2025-10-09, 10:00 - 11:00

Participating: Jakob Reiffenstein, SU

Location: 3418, Lindstedtsvägen 25

2025-10-09T10:00:00.000+02:00 2025-10-09T11:00:00.000+02:00 Jakob Reiffenstein: Quantitative formulae for the Weyl coefficient of a canonical system (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Jakob Reiffenstein: Quantitative formulae for the Weyl coefficient of a canonical system (Seminar, Differential geometry and general relativity)

Rasmus Jouttijärvi: Towards Stability of Einstein Manifolds with Boundary

16 Oct

Seminar, Differential geometry and general relativity

Thursday 2025-10-16, 10:00 - 11:00

Participating: Rasmus Jouttijärvi, KTH

Location: 3418, Lindstedtsvägen 25

2025-10-16T10:00:00.000+02:00 2025-10-16T11:00:00.000+02:00 Rasmus Jouttijärvi: Towards Stability of Einstein Manifolds with Boundary (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Rasmus Jouttijärvi: Towards Stability of Einstein Manifolds with Boundary (Seminar, Differential geometry and general relativity)

Ahmed Ellithy: Static and Stationary Vacuum Extensions Realizing Bartnik Boundary Data: Local Well-Posedness near Schwarzschild Spheres

23 Oct

Seminar, Differential geometry and general relativity

Thursday 2025-10-23, 10:00 - 11:00

Participating: Ahmed Ellithy, Uppsala University

Location: 3418, Lindstedtsvägen 25

2025-10-23T10:00:00.000+02:00 2025-10-23T11:00:00.000+02:00 Ahmed Ellithy: Static and Stationary Vacuum Extensions Realizing Bartnik Boundary Data: Local Well-Posedness near Schwarzschild Spheres (Seminar, Differential geometry and general relativity) 3418, Lindstedtsvägen 25 (KTH, Stockholm, Sweden)Ahmed Ellithy: Static and Stationary Vacuum Extensions Realizing Bartnik Boundary Data: Local Well-Posedness near Schwarzschild Spheres (Seminar, Differential geometry and general relativity)

Markus Wolff: Some remarks on the Bartnik mass

30 Oct

Seminar, Differential geometry and general relativity

Thursday 2025-10-30, 10:00 - 11:00

Participating: Markus Wolff, KTH

Location: Cramér room, Roslagsvägen 26

2025-10-30T10:00:00.000+01:00 2025-10-30T11:00:00.000+01:00 Markus Wolff: Some remarks on the Bartnik mass (Seminar, Differential geometry and general relativity) Cramér room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Markus Wolff: Some remarks on the Bartnik mass (Seminar, Differential geometry and general relativity)

Mattias Dahl: D-minimal metrics on compact spin manifolds.

6 Nov

Seminar, Differential geometry and general relativity

Thursday 2025-11-06, 10:00 - 11:00

Participating: Mattias Dahl, KTH

Location: Cramér room, Roslagsvägen 26

2025-11-06T10:00:00.000+01:00 2025-11-06T11:00:00.000+01:00 Mattias Dahl: D-minimal metrics on compact spin manifolds. (Seminar, Differential geometry and general relativity) Cramér room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Mattias Dahl: D-minimal metrics on compact spin manifolds. (Seminar, Differential geometry and general relativity)

Samuel Lockman: Perturbation theory of Dirac operators and homotopy groups of parameter spaces

13 Nov

Seminar, Differential geometry and general relativity

Thursday 2025-11-13, 10:00 - 11:00

Participating: Samuel Lockman, University of Regensburg

Location: Cramér Room, Roslagsvägen 26

2025-11-13T10:00:00.000+01:00 2025-11-13T11:00:00.000+01:00 Samuel Lockman: Perturbation theory of Dirac operators and homotopy groups of parameter spaces (Seminar, Differential geometry and general relativity) Cramér Room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Samuel Lockman: Perturbation theory of Dirac operators and homotopy groups of parameter spaces (Seminar, Differential geometry and general relativity)

Anna Sancassani: Global charges on asymptotically corresponding initial data sets

20 Nov

Seminar, Differential geometry and general relativity

Thursday 2025-11-20, 10:00 - 11:00

Participating: Anna Sancassani, University of Tübingen

Location: Cramér room, Roslagsvägen 26

2025-11-20T10:00:00.000+01:00 2025-11-20T11:00:00.000+01:00 Anna Sancassani: Global charges on asymptotically corresponding initial data sets (Seminar, Differential geometry and general relativity) Cramér room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Anna Sancassani: Global charges on asymptotically corresponding initial data sets (Seminar, Differential geometry and general relativity)

Annachiara Piubello: Towards a Definition of Energy and its Positivity in Spacetimes With an Expanding Flat de Sitter Background

27 Nov

Seminar, Differential geometry and general relativity

Thursday 2025-11-27, 09:00 - 10:00

Participating: Annachiara Piubello, University of Copenhagen

Location: KTH, room 3418

2025-11-27T09:00:00.000+01:00 2025-11-27T10:00:00.000+01:00 Annachiara Piubello: Towards a Definition of Energy and its Positivity in Spacetimes With an Expanding Flat de Sitter Background (Seminar, Differential geometry and general relativity) KTH, room 3418 (KTH, Stockholm, Sweden)Annachiara Piubello: Towards a Definition of Energy and its Positivity in Spacetimes With an Expanding Flat de Sitter Background (Seminar, Differential geometry and general relativity)

Eric Ling: Existence and nonexistence of CMC Cauchy surfaces in cosmological spacetimes

27 Nov

Seminar, Differential geometry and general relativity

Thursday 2025-11-27, 10:30 - 11:30

Participating: Eric Ling, University of Copenhagen

Location: KTH, room 3418

2025-11-27T10:30:00.000+01:00 2025-11-27T11:30:00.000+01:00 Eric Ling: Existence and nonexistence of CMC Cauchy surfaces in cosmological spacetimes (Seminar, Differential geometry and general relativity) KTH, room 3418 (KTH, Stockholm, Sweden)Eric Ling: Existence and nonexistence of CMC Cauchy surfaces in cosmological spacetimes (Seminar, Differential geometry and general relativity)

Louie Bernhardt: Stability of cosmological spacetimes undergoing decelerated expansion

4 Dec

Seminar, Differential geometry and general relativity

Thursday 2025-12-04, 09:00 - 10:00

Participating: Louie Bernhardt, University of Melbourne

Location: Cramér room, Roslagsvägen 26

2025-12-04T09:00:00.000+01:00 2025-12-04T10:00:00.000+01:00 Louie Bernhardt: Stability of cosmological spacetimes undergoing decelerated expansion (Seminar, Differential geometry and general relativity) Cramér room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Louie Bernhardt: Stability of cosmological spacetimes undergoing decelerated expansion (Seminar, Differential geometry and general relativity)

Carl Rossdeutscher: Rigidity aspects of a singularity Theorem

4 Dec

Seminar, Differential geometry and general relativity

Thursday 2025-12-04, 10:30 - 11:30

Participating: Carl Rossdeutscher, University of Vienna

Location: Cramér Room, Roslagsvägen 26

2025-12-04T10:30:00.000+01:00 2025-12-04T11:30:00.000+01:00 Carl Rossdeutscher: Rigidity aspects of a singularity Theorem (Seminar, Differential geometry and general relativity) Cramér Room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Carl Rossdeutscher: Rigidity aspects of a singularity Theorem (Seminar, Differential geometry and general relativity)

Penelope Gehring: Finite propagation speed vs. non-local boundary conditions

11 Dec

Seminar, Differential geometry and general relativity

Thursday 2025-12-11, 10:00 - 11:00

Participating: Penelope Gehring, Stockholm University

Location: Cramér room, Roslagsvägen 26

2025-12-11T10:00:00.000+01:00 2025-12-11T11:00:00.000+01:00 Penelope Gehring: Finite propagation speed vs. non-local boundary conditions (Seminar, Differential geometry and general relativity) Cramér room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Penelope Gehring: Finite propagation speed vs. non-local boundary conditions (Seminar, Differential geometry and general relativity)