normal basis

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• Normal basis — In mathematics, a normal basis in field theory is a special kind of basis for Galois extensions of finite degree, characterised as forming a single orbit for the Galois group. The normal basis theorem states that any finite Galois extension of… …   Wikipedia

• Normal extension — In abstract algebra, an algebraic field extension L/K is said to be normal if L is the splitting field of a family of polynomials in K[X]. Bourbaki calls such an extension a quasi Galois extension. Contents 1 Equivalent properties and examples 2… …   Wikipedia

• Normal matrix — A complex square matrix A is a normal matrix if where A* is the conjugate transpose of A. That is, a matrix is normal if it commutes with its conjugate transpose. If A is a real matrix, then A*=AT. Hence, the matrix is normal if ATA = AAT.… …   Wikipedia

• Normal coordinates — In differential geometry, normal coordinates at a point p in a differentiable manifold equipped with a symmetric affine connection are a local coordinate system in a neighborhood of p obtained by applying the exponential map to the tangent space… …   Wikipedia

• Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function …   Wikipedia

• Normal mode — For other types of mode, see Mode (disambiguation). Vibration of a single normal mode of a circular disc with a pinned boundary condition along the entire outer edge. See other modes. A normal mode of an oscillating system is a pattern of motio …   Wikipedia

• Normal surface — In mathematics, a normal surface is a surface inside a triangulated 3 manifold that intersects each tetrahedron so that each component of intersection is a triangle or a quad (see figure). A triangle cuts off a vertex of the tetrahedron while a… …   Wikipedia

• Normal backwardation — The graph depicts how the price of a single forward contract will behave through time in relation to the expected future price at any point time. A contract in backwardation will increase in value until it equals the spot price of the underlying… …   Wikipedia

• Normal (Geometrie) — Die Orthogonalität bezeichnet: in der Mathematik das Konzept des Senkrechtstehens und des rechten Winkels (daher die Benennung orthogonal aus dem Griechischen für rechtwinklig); in der Informatik die freie Kombinierbarkeit unabhängiger Konzepte… …   Deutsch Wikipedia

• Basis future — In the context of financial futures, basis of futures can be defined as the spot price minus the futures price. There will be a different basis for each delivery month for each contract. In a normal market, basis will be negative. This reflects… …   Wikipedia

• normal market size — ( NMS) Each listed company is allocated a NMS on the basis of the level of trading in the company s shares. The more active the trading, the higher the NMS. Obligations of market makers and other facets of market regulation are set by reference… …   Financial and business terms