parts spectrum

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• Spectrum disorder — in psychiatry is a term used to describe a mental disorder when there is thought to be not a unitary disorder but rather a syndrome composed of subgroups that can range from relatively severe to relatively mild and nonclinical deficits .cite… …   Wikipedia

• Spectrum (functional analysis) — In functional analysis, the concept of the spectrum of a bounded operator is a generalisation of the concept of eigenvalues for matrices. Specifically, a complex number λ is said to be in the spectrum of a bounded linear operator T if… …   Wikipedia

• spectrum —   n. (pl. ra) series of images, colours, etc., formed when ray of radiant energy is dispersed into its component parts.    ♦ spectrobolograph, n. photogographic record of lines of infra red spectrum.    ♦ spectrogram, n. representation of a… …   Dictionary of difficult words

• Spectrum (Russian novel) — infobox Book | name = Spectrum title orig = Spectr, Спектр (Russian) translator = author = Sergei Lukyanenko (Сергей Лукьяненко) cover artist = country = Russia language = Russian series = genre = Science fiction novel publisher = AST release… …   Wikipedia

• spectrum — n. (pl. spectra) 1 the band of colours, as seen in a rainbow etc., arranged in a progressive series according to their refrangibility or wavelength. 2 the entire range of wavelengths of electromagnetic radiation. 3 a an image or distribution of… …   Useful english dictionary

• Decomposition 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… …   Wikipedia

• Spread spectrum — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Electromagnetic spectrum — The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation frequencies. [cite web|url=http://imagine.gsfc.nasa.gov/docs/dict ei.html#em spectrum|title=Imagine the Universe! Dictionary] The electromagnetic spectrum… …   Wikipedia

• Autism spectrum — The term autism spectrum is often used to describe disorders that are currently classified as pervasive developmental disorders. Pervasive developmental disorders include Autistic Disorder, Asperger s Disorder, Childhood Disintegrative Disorder,… …   Wikipedia

• Open spectrum — (also known as free spectrum) is a movement to get the Federal Communications Commission to provide more unlicensed, radio frequency spectrum that is available for use by all. Proponents of the commons model of open spectrum advocate a future… …   Wikipedia

• Continuous spectrum — The spectrum of a linear operator is commonly divided into three parts: point spectrum, continuous spectrum, and residual spectrum. If H is a topological vector space and is a linear map, the spectrum of A is the set of complex numbers λ such… …   Wikipedia