A ringsingularity or ringularity is the gravitational singularity of a rotating black hole, or a Kerr black hole, that is shaped like a ring. When a...
A gravitational singularity, spacetime singularity or simply singularity is a condition in which gravity is predicted to be so intense that spacetime itself...
In general relativity, a naked singularity is a hypothetical gravitational singularity without an event horizon. When there exists at least one causal...
showed that the singularity disappeared after a change of coordinates. In 1933, Georges Lemaître realized that this meant the singularity at the Schwarzschild...
unlike a true black hole, this object would display a naked singularity, meaning a singularity in spacetime not hidden behind an event horizon. It would...
place. However, in a 1997 paper, Visser hypothesized that a complex "Roman ring" (named after Tom Roman) configuration of an N number of wormholes arranged...
Penrose–Hawking singularity theorems, singularities are inevitable in physically reasonable situations. Still, in the absence of naked singularities, the universe...
self-consistency principle Polchinski's paradox Retrocausality Ringsingularity Roman ring Other computer-rendered images and animations of traversable...
collapse. Ergosphere Kerr black holes as wormholes Penrose process Ringsingularity Stellar black holes "Why and how do planets rotate?". Scientific American...
determinant is invertible in the ring, which in general is a stricter requirement than it being nonzero. For a noncommutative ring, the usual determinant is...
outside that horizon. However, neither surface is a true singularity, since their apparent singularity can be eliminated in a different coordinate system....
Schwarzschild metric has a singularity for r = 0, which is an intrinsic curvature singularity. It also seems to have a singularity on the event horizon r...
the homotopy category of chain complexes. Given any unital ring R, the set of singular n-simplices on a topological space can be taken to be the generators...
elliptic singularity of a surface, introduced by Wagreich (1970), is a surface singularity such that the arithmetic genus of its local ring is 1. Rational...
not a J-1 ring as S has a cusp singularity at every closed point, so the set of singular points is not closed, though it is a G-ring. This ring is also...
multiplication (CM) is the theory of elliptic curves E that have an endomorphism ring larger than the integers. Put another way, it contains the theory of elliptic...
a Du Val singularity, also called simple surface singularity, Kleinian singularity, or rational double point, is an isolated singularity of a complex...
mathematics, a commutative ring is a ring in which the multiplication operation is commutative. The study of commutative rings is called commutative algebra...
crossing singularity is a singularity similar to a union of coordinate hyperplanes. The term can be confusing because normal crossing singularities are not...
term quantum singularity is used to refer to many different phenomena in fiction. They often only approximate a gravitational singularity in the scientific...
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