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: Cramér Room, Roslagsvägen 26

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) Cramér Room, Roslagsvägen 26 (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: Cramér Room, Roslagsvägen 26

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) Cramér Room, Roslagsvägen 26 (KTH, Stockholm, Sweden)Eric Ling: Existence and nonexistence of CMC Cauchy surfaces in cosmological spacetimes (Seminar, Differential geometry and general relativity)