Inversion

Inversion or inversions may refer to:

Music and arts

Inversion (artwork), a 2005 temporary sculpture in Houston, Texas
Inversion (music), a term with various meanings in music theory and musical set theory
Inversions (novel) by Iain M. Banks
Inversion (video game), a 2012 third person shooter for, Xbox 360, PlayStation 3, and PC
Inversions (EP), the 2014 extended play album by American rock music ensemble The Colourist

Inversion (evolutionary biology), a hypothesis about the evolution of the dorsoventral axis in animals
Inversion (geology), the relative uplift of a previously basinal area resulting from local shortening, in structural geology
Inversion (meteorology), air temperature increasing with height
Relief inversion, when a previous depression becomes a landform that stands out from its surroundings
Chromosomal inversion in genetics, where a segment of a chromosome is reversed end-to-end
Island of inversion, a group of elements with abnormal nuclear shell structure
Nitrogen inversion, a chemical process in which a trigonal nitrogen-containing structure turns inside-out
Population inversion, in statistical mechanics, when a system exists in state with more members in an excited state than in lower-energy states
Seismic inversion, transforming seismic reflection data into a quantitative rock-property description of a geological formation
Inverse problem or its solution

Involution (mathematics), the broader concept: a function that, when applied twice, brings one back to the starting point.
Inversion (discrete mathematics), items that are out of order in a permutation
Circle inversion, a transformation of the Euclidean plane that maps generalized circles to generalized circles
Inversion in a point, also called point reflection, a kind of transformation in a Euclid space
Inversion transformation, a conformal transformation
Method of inversion, the image of a harmonic function in a sphere (or plane); see Method of image charges
Multiplicative inverse, the reciprocal of a number
Matrix inversion, an operation on a matrix

Priority inversion, in which a low-priority task holds a shared resource that a high-priority task needs

Inversion (kinesiology), movement of the sole towards the median plane
Inversion therapy, the practise of hanging upside down (heart higher than head) for supposed health benefits

Inversion (linguistics), grammatical constructions where two expressions switch their order of appearance
Inversion (prosody), the reversal of the order of a foot's elements in poetry
Anastrophe, a figure of speech also known as an inversion

Inversion in postcolonial theory, a discursive strategy/gesture in cultural and subaltern studies
Roller coaster inversion, which turns riders upside-down
Corporate inversion, which avoids paying taxes by moving corporate ownership to low-tax nations