- almost periodic function
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Math.a function that repeats its values approximately at almost equally spaced intervals of its domain.
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Universalium. 2010.
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Universalium. 2010.
Almost periodic function — In mathematics, almost periodic functions are functions of a real number that are periodic up to a small error, first studied by Harald Bohr. There are generalizations to almost periodic functions on locally compact abelian groups. Almost… … Wikipedia
almost periodic function — Math. a function that repeats its values approximately at almost equally spaced intervals of its domain … Useful english dictionary
Periodic function — Not to be confused with periodic mapping, a mapping whose nth iterate is the identity (see periodic point). In mathematics, a periodic function is a function that repeats its values in regular intervals or periods. The most important examples are … Wikipedia
Quasiperiodic function — In mathematics, a function f is said to be quasiperiodic with quasiperiod (sometimes simply called the period ) omega; if for certain constants a and b , ensp; f satisfies the functional equation: f(z + omega) = exp(az+b) f(z). An example of this … Wikipedia
Particle in a one-dimensional lattice (periodic potential) — In quantum mechanics, the particle in a one dimensional lattice is a problem that occurs in the model of a periodic crystal lattice. The problem can be simplified from the 3D infinite potential barrier (particle in a box) to a one dimensional… … Wikipedia
Dirac delta function — Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually used to specify the value of any multiplicative constant, which will give the area under the function. The other convention… … Wikipedia
Hypokalemic periodic paralysis — Infobox Disease Name = Hypokalemic periodic paralysis Caption = DiseasesDB = 6465 ICD10 = ICD10|G|72|3|g|70 ICD9 = ICD9|359.3 ICDO = OMIM = 170400 MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D020514 Hypokalemic periodic paralysis is a … Wikipedia
Riemann zeta function — ζ(s) in the complex plane. The color of a point s encodes the value of ζ(s): dark colors denote values close to zero and hue encodes the value s argument. The white spot at s = 1 is the pole of the zeta function; the black spots on the… … Wikipedia
Bohr compactification — In mathematics, the Bohr compactification of a topological group G is a compact Hausdorff topological group H that may be canonically associated to G . Its importance lies in the reduction of the theory of uniformly almost periodic functions on G … Wikipedia
Pontryagin duality — In mathematics, in particular in harmonic analysis and the theory of topological groups, Pontryagin duality explains the general properties of the Fourier transform. It places in a unified context a number of observations about functions on the… … Wikipedia