invariant field
41Coso Volcanic Field — A basaltic lava flow that is typical of the process that created the stepped terraces of Coso as it flowed across the landscape, producing a more or less flat surface eroding to a sheer front …
42Discriminant of an algebraic number field — A fundamental domain of the ring of integers of the field K obtained from Q by adjoining a root of x3 − x2 − 2x + 1. This fundamental domain sits inside K ⊗QR. The discriminant of K is 49 = 72.… …
43Motion field — In computer vision the motion field is an ideal representation of 3D motion as it is projected onto a camera image. Given a simplified camera model, each point (y1,y2) in the image is the projection of some point in the 3D scene but the position… …
44Residue field — In mathematics, the residue field is a basic construction in commutative algebra. If R is a commutative ring and m is a maximal ideal, then the residue field is the quotient ring k = R / m , which is a field. Frequently, R is a local ring and m… …
45Primary field — In theoretical physics, a primary field is a field operator in quantum field theory especially conformal field theory or a theory with supersymmetry that is invariant under the positive frequency modes of the Virasoro algebra or under one half of …
46unified field theory — Physics. 1. See electroweak theory. 2. any field theory, esp. Einstein s, that attempts to combine the gravitational and electromagnetic fields in a single mathematical framework, thus extending the general theory of relativity. * * * Attempt to… …
47Solutions of the Einstein field equations — Where appropriate, this article will use the abstract index notation. Solutions of the Einstein field equations are spacetimes that result from solving the Einstein field equations (EFE) of general relativity. Solving the field equations actually …
48Curvature invariant — In Riemannian geometry and pseudo Riemannian geometry, curvature invariants are scalar quantities constructed from tensors that represent curvature. These tensors are usually the Riemann tensor, the Weyl tensor, the Ricci tensor and tensors… …
49Birational 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… …
50Gaussian random field — A Gaussian random field is a random field involving Gaussian probability density functions of the variables. The initial conditions of physical cosmology generated by quantum mechanical fluctuations during cosmic inflation are thought to be a… …
