biorthogonal
Adjective
Meaning
English Wikipedia has an article on:biorthogonal systemWikipedia
biorthogonal (not comparable)
(mathematics) Describing a pair of topological vector spaces that are in duality with a pair of indexed subsets in a specific manner
Examples
For example, JPEG 2000 is an image compression standard that uses biorthogonal wavelets.
They are called biorthogonal functionals.