Sat
13
Dec
Final Exams for Saturday Classes/Reading Day
  •  
Mon
15
Dec
Finals
  •  
Thu
18
Dec
Official degree conferral date for Fall 2025:
  •  

Degree clearance begins once final grading has concluded. However, it may take up to one month to complete posting all degrees. Please take this timeline into account when ordering transcripts and submitting degree verifications and/or state licensing forms. Check your unofficial transcript on SOLAR  to see when your degree has been awarded.

Thu
18
Dec
Semester End: Official End of Term
  •  
Fri
19
Dec
Math: Analysis Seminar
  •   11:00am - 12:00pm
  • in Math PL-131

Martin Taylor, Imperial College London
Phase mixing and the Vlasov equation in cosmology

The Friedmann--Lemaitre--Robertson--Walker family of spacetimes are the standard homogenous isotropic cosmological models in general relativity. Each member of this family describes a torus, evolving from a big bang singularity and expanding indefinitely to the future, with expansion rate encoded by a suitable scale factor. I will discuss a mixing effect which occurs for the Vlasov equation on these spacetimes when the expansion rate is suitably slow. This is joint work with Renato Velozo Ruiz (Imperial College London).