invariant
121Hasse invariant of a quadratic form — In mathematics, the Hasse invariant (or Hasse Witt invariant) of a quadratic form Q over a field K takes values in the Brauer group Br( K ).The quadratic form Q may be taken as a diagonal form: Sigma; a i x i 2.Its invariant is then defined as… …
122Dickson invariant — In mathematics, the Dickson invariant, named after Leonard Eugene Dickson, may mean: The Dickson invariant of an element of the orthogonal group in characteristic 2 A modular invariant of a group studied by Dickson This disambiguation page lists… …
123Modular invariant — In mathematics, a modular invariant may be A modular invariant of a group acting on a vector space of positive characteristic The elliptic modular function, giving the modular invariant of an elliptic curve. This disambiguation page lists… …
124Abbe invariant — Abės invariantas statusas T sritis fizika atitikmenys: angl. Abbe invariant; invariant of refraction vok. Abbesche Invariante, f; Invariante der Brechung, f rus. инвариант Аббе, m pranc. invariant de réfraction, m …
125Loop-invariant code motion — Loop invariant code in an imperative programming language consists of statements which could be moved to before the loop (if the loop always terminates), or after the loop, without affecting the semantics of the program. As a result it is… …
126Birational invariant — In algebraic geometry, a birational invariant is a quantity or object that is well defined on a birational equivalence class of algebraic varieties. In other words, it depends only on the function field of the variety.For example in the case of… …
127Taubes's Gromov invariant — In mathematics, the Gromov invariant of Clifford Taubes counts embedded (possibly disconnected) pseudoholomorphic curves in a symplectic 4 manifold. Taubes proved that is equivalent to the Seiberg Witten equations, in a series of four long papers …
128Parry-Sullivan invariant — In mathematics, the Parry Sullivan invariant (or Parry Sullivan number) is a numerical quantity of interest in the study of incidence matrices in graph theory, and of certain one dimensional dynamical systems. It provides a partial classification …
