Singularity

Singularity may refer to any of a variety of concepts.

Mathematics:

• Mathematical singularity, a point at which a given mathematical object is not defined

In complex analysis:

• Essential singularity, a singularity near which a function exhibits extreme behavior
• Isolated singularity, a mathematical singularity that has no other singularities close to it
• Movable singularity, a concept in singularity theory
• Removable singularity, a point at which a function is not defined but at which it can be so defined that it is continuous at the singularity

In algebraic geometry:

• Singular point of an algebraic variety, a point where an algebraic variety is not locally flat
• Rational singularity, a concept in singularity theory
• Singularity theory, which deals with these concepts

Science:

• Gravitational singularity, a point in spacetime in which gravitational forces cause matter to have an infinite density and zero volume
• Mechanical singularity, a position or configuration of a mechanism or a machine where the subsequent behaviour cannot be predicted
• Prandtl-Glauert singularity, the point at which a sudden drop in air pressure occurs
• Singularity (climate), a weather phenomenon associated with a specific calendar date
• Technological singularity, a theoretical point in the development of a technological civilization

Television:

• "Singularity" (Enterprise episode), a second season episode of Star Trek: Enterprise
• "Singularity" (Stargate SG-1 episode), a first season episode of Stargate SG-1

Other fields:

• Singularity (operating system), an operating system developed by Microsoft Research written in managed code.
• Singularity (Doctor Who audio), a Doctor Who audio drama
• Singularity (William Sleator novel), a 1985 science-fiction novel by William Sleator
• Singularity (novel), a novel by Bill DeSmedt published by Per Aspera Press in 2004
• Singularity (album), Mae's third studio album.
• Singularity 7, a graphic novel by Ben Templesmith.
• Singularity (video game), a video game developed by Raven Software.
• The Singularity is Near (non-fiction), a 2005 non-fiction book by Ray Kurzweil
• Endgame: Singularity, an artificial intelligence strategy game for Linux