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1 аппроксимация операторами
Mathematics: approximation by operatorsУниверсальный русско-английский словарь > аппроксимация операторами
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Approximation property — In mathematics, a Banach space is said to have the approximation property (AP in short), if every compact operator is a limit of finite rank operators. The converse is always true.Every Hilbert space has this property. There are, however, Banach… … Wikipedia
Approximation sigma — En mathématiques, l’approximation sigma, imaginée par Cornelius Lanczos, est une méthode de fenêtrage qui permet d ajuster une série de Fourier pour éliminer le phénomène de Gibbs qui pourrait survenir aux discontinuités. Principe Une… … Wikipédia en Français
Born-Oppenheimer approximation — In quantum chemistry, the computation of the energy and wavefunction of an average size molecule is a formidable task that is alleviated by the Born Oppenheimer (BO) approximation. For instance the benzene molecule consists of 12 nuclei and 42… … Wikipedia
Constructive Approximation — Abbreviated title (ISO) Constr. Approx. Discipline mathematics … Wikipedia
Entropiezahl — Entropiezahlen sind in der Funktionalanalysis Kennzahlen von stetigen linearen Operatoren. Das Konzept basiert auf dem Begriff der Epsilon Entropie. Inhaltsverzeichnis 1 Definition 1.1 Äußere Entropiezahlen 1.2 Innere Entropiezahlen … Deutsch Wikipedia
Entropiezahlen — sind in der Funktionalanalysis Kennzahlen von stetigen linearen Operatoren. Das Konzept basiert auf dem Begriff der Epsilon Entropie. Inhaltsverzeichnis 1 Definition 1.1 Äußere Entropiezahlen 1.2 Innere Entropiezahlen 1.3 … Deutsch Wikipedia
Overcompleteness — A system in a Banach space X is complete if every element in X can be approximated arbitrarily well in norm by finite linear combinations of elements in .[1] Such a complete system is overcomplete if removal of a ϕj from the system results in a… … Wikipedia
Per Enflo — Born 1944 Stockholm, Sweden … Wikipedia
Singular value decomposition — Visualization of the SVD of a 2 dimensional, real shearing matrix M. First, we see the unit disc in blue together with the two canonical unit vectors. We then see the action of M, which distorts the disk to an ellipse. The SVD decomposes M into… … Wikipedia
Hilbert space — For the Hilbert space filling curve, see Hilbert curve. Hilbert spaces can be used to study the harmonics of vibrating strings. The mathematical concept of a Hilbert space, named after David Hilbert, generalizes the notion of Euclidean space. It… … Wikipedia
List of numerical analysis topics — This is a list of numerical analysis topics, by Wikipedia page. Contents 1 General 2 Error 3 Elementary and special functions 4 Numerical linear algebra … Wikipedia