- essential spectrum
- мат. существенный спектр
Большой англо-русский и русско-английский словарь. 2001.
essential spectrum
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Essential spectrum — In mathematics, the essential spectrum of a bounded operator is a certain subset of its spectrum, defined by a condition of the type that says, roughly speaking, fails badly to be invertible .The essential spectrum of self adjoint operatorsIn… … 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
Essential tremor — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD10|G|25|0|g|20 ICD9 = ICD9|333.1 ICDO = OMIM = 190300 OMIM mult = OMIM2|602134 | MedlinePlus = 000762 eMedicineSubj = neuro eMedicineTopic = 129 MeshID = D020329 Essential tremor… … Wikipedia
Spectrum (album) — Infobox Album | Name = Spectrum Type = Album Artist = Billy Cobham Released = October 1, 1973 Recorded = May 14–May 16 1973 at Electric Lady Studios, New York City Genre = Jazz fusion Length = 37:17 Label = Atlantic Records Producer = William E.… … Wikipedia
Essential Status Quo (Box Set) — Infobox Album Name = The Essential Status Quo Type = greatest Longtype = Artist = Status Quo Released = 16 Nov 2001 Recorded = Genre = Length = Label = Spectrum Producer = Reviews = Last album = This album = The Essential Status Quo (2001) Next… … Wikipedia
Essential bandwidth — In signal processing, the essential bandwidth is the portion of a signal spectrum in the frequency domain which contains most of the energy of the signal … Wikipedia
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
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
Military spectrum management — Every military force has a goal to ensure and have permanent access to radio frequencies to meet its vital military tasks. This is based on strategies, doctrines and different policies that military forces adhere to. The nature of high mobility… … Wikipedia
Political spectrum — A political spectrum (plural spectra) is a way of modeling different political positions by placing them upon one or more geometric axes symbolizing independent political dimensions.Most long standing spectra include a right wing and left wing,… … Wikipedia
Conditions comorbid to autism spectrum disorders — There are many conditions comorbid to autism spectrum disorders, such as fragile X syndrome and epilepsy. In medicine and in psychiatry, comorbidity describes the effect of other diseases an individual patient might have other than the primary… … Wikipedia
