- self-dual
Wikipedia foundation.
Wikipedia foundation.
Dual polyhedron — The dual of a cube is an octahedron, shown here with vertices at the cube face centers … Wikipedia
Dual code — For players of both rugby codes, see List of dual code rugby internationals. In coding theory, the dual code of a linear code is the linear code defined by where is a scalar product. In linear algebra terms, the dual code is the annihi … Wikipedia
Dual polygon — In geometry, polygons are associated into pairs called duals, where the vertices of one correspond to the edges of the other. Contents 1 Properties 2 Kinds of duality 2.1 Rectification … Wikipedia
Dual cone and polar cone — A set C and its dual cone C * … Wikipedia
Dual graph — G′ is the dual graph of G In mathematics, the dual graph of a given planar graph G is a graph which has a vertex for each plane region of G, and an edge for each edge in G joining two neighboring regions, for a certain embedding of G. The term… … Wikipedia
Dual (category theory) — In category theory, a branch of mathematics, duality is a correspondence between properties of a category C and so called dual properties of the opposite category Cop. Given a statement regarding the category C, by interchanging the source and… … Wikipedia
Dual norm — The concept of a dual norm arises in functional analysis, a branch of mathematics. Let X be a Banach space with norm . Then the dual space X* is the collection of all continuous linear functionals from X into the base field (which is either R or… … Wikipedia
Dual language — is a form of education in which students are taught literacy and content in two languages. The majority of dual language programs in the United States teach in English and Spanish, although increasing numbers of programs use a partner language… … Wikipedia
Dual inheritance theory — (DIT), also known as gene culture coevolution, was developed in the late 1970s and early 1980s to explain how human behavior is a product of two different and interacting evolutionary processes: genetic evolution and cultural evolution. DIT is a… … Wikipedia
Self-enquiry — (also spelled self inquiry) (Sanskrit IAST|ātma vicāra ) is a practice of meditation designed to rapidly bring about Self realization, Self awareness, spiritual liberation or enlightenment, and is most commonly associated with its most famous… … Wikipedia