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You Cannot Press Out the Black Hole

General Relativity and Quantum Cosmology 2012-02-03 v2 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

It is shown that a ball-shaped black hole region homeomorphic with D**n cannot be pressed out, along whichever axis penetrating the black hole region, into a black ring with a doughnut-shaped black hole region homeomorphic with S**1 x D**(n-1). A more general prohibition law for the change of the topology of black holes, including a version of no-bifurcation theorems for black holes, is given.

Cite

@article{arxiv.1105.6173,
  title  = {You Cannot Press Out the Black Hole},
  author = {Daisuke Ida and Takahiro Okamoto},
  journal= {arXiv preprint arXiv:1105.6173},
  year   = {2012}
}

Comments

6 pages

R2 v1 2026-06-21T18:15:05.353Z