Random matrix — In probability theory and mathematical physics, a random matrix is a matrix valued random variable. Many important properties of physical systems can be represented mathematically as matrix problems. For example, the thermal conductivity of a… … Wikipedia
Matrix normal distribution — parameters: mean row covariance column covariance. Parameters are matrices (all of them). support: is a matrix … Wikipedia
Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… … Wikipedia
Random element — The term random element was introduced by Maurice Frechet in 1948 to refer to a random variable that takes values in spaces more general than had previously been widely considered. Frechet commented that the development of probability theory and… … Wikipedia
Matrix string theory — In physics, Matrix string theory is a set of equations that describe superstring theory in a non perturbative framework. Type IIA string theory can be shown to be equivalent to a maximally supersymmetric two dimensional gauge theory, the gauge… … Wikipedia
Random self-reducibility — (RSR): A good algorithm for the average case implies a good algorithm for the worst case. RSR is the ability to solve all instances of a problem by solving a large fraction of the instances.DefinitionIf a function f evaluating any instance x can… … Wikipedia
Random Access Memory — (das; dt.: Speicher mit wahlfreiem Zugriff), abgekürzt RAM, ist ein Speicher, der besonders bei Computern als Arbeitsspeicher Verwendung findet. Die gängigsten Formen gehören zu den Halbleiterspeichern. RAM wird als integrierter Schaltkreis… … Deutsch Wikipedia
Random access memory — (das; dt.: Speicher mit wahlfreiem Zugriff), abgekürzt RAM, ist ein Speicher, der besonders bei Computern als Arbeitsspeicher Verwendung findet. Die gängigsten Formen gehören zu den Halbleiterspeichern. RAM wird als integrierter Schaltkreis… … Deutsch Wikipedia
Random-Access Memory — (das; engl.: random[ ]access memory, zu Deutsch: „Speicher mit wahlfreiem/direktem Zugriff“ = Direktzugriffsspeicher), abgekürzt RAM, ist ein Informations Speicher, der besonders bei Computern als Arbeitsspeicher Verwendung findet. Die gängigsten … Deutsch Wikipedia
Random permutation statistics — The statistics of random permutations, such as the cycle structure of a random permutation are of fundamental importance in the analysis of algorithms, especially of sorting algorithms, which operate on random permutations. Suppose, for example,… … Wikipedia
Random effects model — In statistics, a random effect(s) model, also called a variance components model is a kind of hierarchical linear model. It assumes that the data describe a hierarchy of different populations whose differences are constrained by the hierarchy. In … Wikipedia