Bulletin of the American Physical Society
APS April Meeting 2022
Volume 67, Number 6
Saturday–Tuesday, April 9–12, 2022; New York
Session D02: The Century of Physical Cosmology
1:30 PM–3:18 PM,
Saturday, April 9, 2022
Room: Broadway South
Sponsoring
Unit:
FHPP
Chair: Paul Halpern, University of the Sciences
Abstract: D02.00002 : Theoretical Cosmology in the 1960s*
2:06 PM–2:42 PM
Abstract 
Presenter:
Dennis Lehmkuhl
(Univ Bonn)
Author:
Dennis Lehmkuhl
(Univ Bonn)
*This talk will focus on the development of new mathematical methods during the 1960s that allowed for new ways of understanding the solution space of the Einstein equations, and subsequently for new avenues to work on cosmology. The focus will be on the classification schemes for vacuum solutions developed by Petrov, Penrose, and Pirani, as well as the global methods developed during the work on the singularity theorems by Penrose and Hawking. Building on this, the talk will outline how both the singularity theorems themselves and the new methods developed in proving them have influenced subsequent work on cosmology.
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