From Wikipedia, the free encyclopedia
Inversion or inversions may refer to:
Arts
Linguistics and language
Mathematics and logic
Additive inverse
Involution (mathematics) , a function that is its own inverse (when applied twice, the starting value is obtained)
Inversion (discrete mathematics) , any item that is out of order in a sequence
Inverse element
Inversive geometry#Circle inversion , a transformation of the Euclidean plane that maps generalized circles to generalized circles
Inversion in a point, or
point reflection , a kind of isometric (distance-preserving) transformation in a Euclidean space
Inversion transformation , a conformal transformation (one which preserves angles of intersection)
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 (or any other type of element for which a multiplication function is defined)
Matrix inversion , an operation on a matrix that results in its multiplicative inverse
Model inversion
Set inversion
Natural sciences
Biology and medicine
Geology
Inversion (geology) , the relative uplift of a previously basinal area resulting from local shortening, in structural geology
Relief inversion , when a previous depression becomes a landform that stands out from its surroundings
Seismic inversion , transforming seismic reflection data into a quantitative rock-property description of a geological formation
Physics and chemistry
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
Pyramidal inversion , a chemical process in which a trigonal structure turns inside-out
Inverted sugar syrup , a chemical reaction converting sucrose into glucose and fructose
Other uses in the natural sciences
Other uses
See also
Topics referred to by the same term