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Roy Patrick Kerr CNZM FRS FRSNZ (/ k ɜːr /; born 16 May 1934) is a New Zealand mathematician who discovered the Kerr geometry, an exact solution to the Einstein field equation of general relativity.
Dec 5, 2023 · Roy Kerr, the discoverer of the spacetime solution for rotating black holes, argues that singularities don't physically exist. He uses a powerful mathematical argument based on the impossibility of crossing the event horizon in finite time.
- Ethan Siegel
Roy Kerr, New Zealand mathematician who solved (1963) Einstein’s field equations of general relativity to describe rotating black holes, thus providing a major contribution to the field of astrophysics. His solution is called the Kerr metric, or Kerr solution. Learn more about his life and work.
- The Editors of Encyclopaedia Britannica
Nov 30, 2023 · Roy Kerr argues that the Kerr metric does not contain a singularity, contrary to Penrose's theorem. See his preprint, talks and counterexamples, and the discussion on Physics Stack Exchange.
- As far as I can tell, Kerr's point is that the singularity theorem doesn't specify whether or not a collapsing object will collapse to a "real" sin...
- The central point of Kerr's paper is showing examples of inextendible null geodesics with finite affine length that do not end in a singularity. To...
- Kerr writes: The original Kerr-Schild coordinates were deliberately chosen to be a generalisation of Eddington’s, avoiding any coordinate singulari...
- Kerr is talking about realistic black holes... Roy Kerr wrote: "...generated by real physical bodies" so in the Penrose diagrams in the other answe...
- Kerr here opposes a research that was awarded the Nobel Prize (Penrose 2020), but I believe he is fundamentally right. Among other things, this is...
- In a nutshell, the Penrose Singularity Theorem states that light inside the horizon cannot escape to infinity and therefore must end up in a singul...
- The author’s opinion is that gravitational clumping leads inevitably to black holes in our universe, confirming what is observed, but this does not...
- There are some answers here that do a good job of exhibiting the curves that Kerr has pointed out, but I don't think any have outlined his core arg...
Roy Kerr is a New Zealand mathematician who found a solution to Einstein's field equations which describes a rotating black hole.
Apr 11, 2019 · The University of Canterbury's Canterbury Distinguished Professor Roy Kerr, who discovered the solution of rotating black holes in 1963, sees his theory proven by the Event Horizon Telescope. The image of a black hole at the heart of the Messier 87 galaxy shows the Kerr geometry and the Einstein field equation of general relativity.
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He’s among the world’s greatest living mathematicians. And at age 90, Emeritus Professor Roy Kerr is still as curious as ever about the mysteries of the cosmos. Jamie Morton reports.
