neighbourhood operator

См. также в других словарях:

• Closure operator — In mathematics, a closure operator on a set S is a function cl: P(S) → P(S) from the power set of S to itself which satisfies the following conditions for all sets X,Y ⊆ S. X ⊆ cl(X) (cl is extensive) X ⊆ Y implies cl(X) ⊆ cl(Y)   (cl… …   Wikipedia

• Compact operator — In functional analysis, a branch of mathematics, a compact operator is a linear operator L from a Banach space X to another Banach space Y, such that the image under L of any bounded subset of X is a relatively compact subset of Y. Such an… …   Wikipedia

• Pseudo-differential operator — In mathematical analysis a pseudo differential operator is an extension of the concept of differential operator. Pseudo differential operators are used extensively in the theory of partial differential equations and quantum field theory.… …   Wikipedia

• Fredholm-Operator — In der Funktionalanalysis, einem Teilgebiet der Mathematik, ist die Klasse der Fredholm Operatoren (nach E. I. Fredholm) ein bestimmte Klasse linearer Operatoren, die man „fast“ invertieren kann. Jedem Fredholm Operator ordnet man eine ganze Zahl …   Deutsch Wikipedia

• оператор формирования окрестностей элемента изображения — — [Е.С.Алексеев, А.А.Мячев. Англо русский толковый словарь по системотехнике ЭВМ. Москва 1993] Тематики информационные технологии в целом EN neighbourhood operator …   Справочник технического переводчика

• Interior algebra — In abstract algebra, an interior algebra is a certain type of algebraic structure that encodes the idea of the topological interior of a set. Interior algebras are to topology and the modal logic S4 what Boolean algebras are to set theory and… …   Wikipedia

• Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… …   Wikipedia

• Crawley — For other uses, see Crawley (disambiguation). Borough of Crawley   Borough   Queen s Square, a large pedestrianised shopping area in the town centre …   Wikipedia

• Glossary of topology — This is a glossary of some terms used in the branch of mathematics known as topology. Although there is no absolute distinction between different areas of topology, the focus here is on general topology. The following definitions are also… …   Wikipedia

• Alexandrov topology — In topology, an Alexandrov space (or Alexandrov discrete space) is a topological space in which the intersection of any family of open sets is open. It is an axiom of topology that the intersection of any finite family of open sets is open. In an …   Wikipedia

• Characterizations of the category of topological spaces — In mathematics, a topological space is usually defined in terms of open sets. However, there are many equivalent characterizations of the category of topological spaces. Each of these definitions provides a new way of thinking about topological… …   Wikipedia