Unbounded
61Decomposition of spectrum (functional analysis) — In mathematics, especially functional analysis, the spectrum of an operator generalizes the notion of eigenvalues. Given an operator, it is sometimes useful to break up the spectrum into various parts. This article discusses a few examples of… …
62Actor model and process calculi history — The Actor model and process calculi share an interesting history and co evolution.Early workThe Actor model, first published in 1973, [Carl Hewitt, Peter Bishop and Richard Steiger. A Universal Modular Actor Formalism for Artificial Intelligence… …
63List of forcing notions — In mathematics, forcing is a method of constructing new models M[G] of set theory by adding a generic subset G of a poset P to a model M. The poset P used will determine what statements hold in the new universe (the extension ); to force a… …
64Linear programming — (LP, or linear optimization) is a mathematical method for determining a way to achieve the best outcome (such as maximum profit or lowest cost) in a given mathematical model for some list of requirements represented as linear relationships.… …
65Normal operator — In mathematics, especially functional analysis, a normal operator on a complex Hilbert space H (or equivalently in a C* algebra) is a continuous linear operator that commutes with its hermitian adjoint N*: Normal operators are important because… …
66Lemniscate of Bernoulli — In mathematics, the lemniscate of Bernoulli is an algebraic curve described by a Cartesian equation of the form::(x^2 + y^2)^2 = 2a^2 (x^2 y^2).,The curve has a shape similar to the numeral 8 and to the infty symbol. The lemniscate was first… …
67Club filter — In mathematics, particularly in set theory, if κ is a regular uncountable cardinal then , the filter of all sets containing a club subset of κ, is a κ complete filter closed under diagonal intersection called the club filter. To see that this is… …
68Actor model and process calculi — In computer science, the Actor model and process calculi are two closely related approaches to the modelling of concurrent digital computation. See Actor model and process calculi history.There are many similarities between the two approaches,… …
69Affiliated operator — In mathematics, affiliated operators were introduced by Murray and von Neumann in the theory of von Neumann algebras as a technique for using unbounded operators to study modules generated by a single vector. Later Atiyah and Singer showed that… …
70XML Schema — XML Schema, abgekürzt XSD, ist eine Empfehlung des W3C zum Definieren von Strukturen für XML Dokumente. Anders als bei den klassischen XML DTDs wird die Struktur in Form eines XML Dokuments beschrieben. Darüber hinaus wird eine große Anzahl von… …
