null measure
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Null set — In mathematics, a null set is a set that is negligible in some sense. For different applications, the meaning of negligible varies. In measure theory, any set of measure 0 is called a null set (or simply a measure zero set). More generally,… … Wikipedia
Measure (mathematics) — Informally, a measure has the property of being monotone in the sense that if A is a subset of B, the measure of A is less than or equal to the measure of B. Furthermore, the measure of the empty set is required to be 0. In mathematical analysis … Wikipedia
Null (physics) — In physics a null is a point in a field where the field quantity is zero as the result of two or more opposing quantities completely cancelling each other. The field may be scalar, vector or tensor in nature. Common situations where nulls arise… … Wikipedia
Null (mathematics) — For other uses, see Null (disambiguation). In mathematics, the word null (from German null, which is from Latin nullus, both meaning zero , or none )[1] means of or related to having zero members in a set or a value of zero. Sometimes the symbol… … Wikipedia
Null corrector — Testing a spherical mirror using an interferometer. All surfaces in the tester are either flat or spherical, so the tester itself is fairly easy to fabricate and test. This setup can test a spherical mirror of any size since the wavefront is… … Wikipedia
Null dust solution — In mathematical physics, a null dust solution (sometimes called a null fluid) is a Lorentzian manifold in which the Einstein tensor is null. Such a spacetime can be interpreted as an exact solution of Einstein s field equation, in which the only… … Wikipedia
Null result — In science, a null result is a result without the expected content: that is, the proposed result is absent.[1] It is an experimental outcome which does not show an otherwise expected effect. This does not imply a result of zero or nothing, simply … Wikipedia
Measure algebra — In mathematics, a measure algebra is a Boolean algebra with a countably additive positive measure. A probability measure on a measure space gives a measure algebra on the Boolean algebra of measurable sets modulo null sets. Definition A measure… … Wikipedia
null — /nul/, adj. 1. without value, effect, consequence, or significance. 2. being or amounting to nothing; nil; lacking; nonexistent. 3. Math. (of a set) a. empty. b. of measure zero. 4. being or amounting to zero. 5. null and void, without legal… … Universalium
null — [[t]nʌl[/t]] adj. 1) without value or significance 2) being or amounting to nothing; nil 3) math. Math. (of a set) a) empty b) of measure zero 4) being or amounting to zero 5) elo a point of minimum signal reception, as on a radio direction… … From formal English to slang
Measure of sampling adequacy — Das Kaiser Meyer Olkin Kriterium (KMK oder KMO, auch measure of sampling adequacy, MSA) ist eine Prüfgröße zur Beurteilung der Eignung der Korrelationsmatrix einer Faktorenanalyse. Mittels des Kaiser Meyer Olkin Kriteriums ist es möglich zu… … Deutsch Wikipedia
