periodic domain
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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
Frequency domain — In electronics, control systems engineering, and statistics, frequency domain is a term used to describe the domain for analysis of mathematical functions or signals with respect to frequency, rather than time.[1] Speaking non technically, a time … Wikipedia
No wandering domain theorem — In mathematics, the no wandering domain theorem is a result on dynamical systems, proved by Dennis Sullivan in 1985. The theorem states that a rational map f : Ĉ rarr; Ĉ with deg( f ) ge; 2 does not have a wandering domain, where Ĉ denotes the… … Wikipedia
No-wandering-domain theorem — In mathematics, the no wandering domain theorem is a result on dynamical systems, proven by Dennis Sullivan in 1985. The theorem states that a rational map f : Ĉ → Ĉ with deg(f) ≥ 2 does not have a wandering domain, where Ĉ… … Wikipedia
almost periodic function — Math. a function that repeats its values approximately at almost equally spaced intervals of its domain. * * * … Universalium
almost periodic function — Math. a function that repeats its values approximately at almost equally spaced intervals of its domain … Useful english dictionary
Spectral method — Spectral methods are a class of techniques used in applied mathematics and scientific computing to numerically solve certain Dynamical Systems, often involving the use of the Fast Fourier Transform. Where applicable, spectral methods have… … Wikipedia
Sobolev space — In mathematics, a Sobolev space is a vector space of functions equipped with a norm that is a combination of Lp norms of the function itself as well as its derivatives up to a given order. The derivatives are understood in a suitable weak sense… … Wikipedia
Perméabilité (fluide) — Pour les articles homonymes, voir Perméabilité. La perméabilité d un matériau (une roche, un tissu, etc.) est une grandeur intrinsèque à ce dernier. Elle mesure sa capacité à laisser passer un fluide, elle est indépendante du fluide. Le terme de… … Wikipédia en Français
Fourier analysis — In mathematics, Fourier analysis is a subject area which grew out of the study of Fourier series. The subject began with trying to understand when it was possible to represent general functions by sums of simpler trigonometric functions. The… … Wikipedia
Relations between Fourier transforms and Fourier series — In the mathematical field of harmonic analysis, the continuous Fourier transform has very precise relations with Fourier series. It is also closely related to the discrete time Fourier transform (DTFT) and the discrete Fourier transform (DFT).… … Wikipedia
