# Dirac Talks: Singularities in General Relativity

Sponsor(s): Physics

This week, I'll begin by recalling our definition of a singular

spacetime and the primary questions it leaves open that we'd like to

address. In particular, I'll discuss the question of "where"

singularities are by giving a brief overview of the alphabet of

boundary constructions (any one of which would take a full lecture to

describe in detail) that have been attempted as well as their merits

and drawbacks. Having addressed this question as best as we can, I'll

then begin the discussion of how serious we need to take singular

spacetimes as general relativists, leading to the singularity theorems

of Hawking and Penrose.

Type: LECTURE/TALK

Contact: Arya Roy