Spectrum (disambiguation)

Encyclopedia : S : SP : SPE : Spectrum (disambiguation)

The word spectrum (plural, spectra) has many uses:

Contents

Common nouns

The energy spectrum of a collection of particles
The electromagnetic spectrum, or an electromagnetic spectrum of an object
* The optical spectrum or color spectrum, a subset of the electromagnetic spectrum
* The spectral class of stars (astronomy)
* The spectral class of asteroids (astronomy)
An emission spectrum or absorption spectrum observed in light
The frequency spectrum of a signal
* The power spectrum of a signal
The timbre of a musical note

The spectrum of a matrix is a concept used in linear algebra
The spectrum of an operator is a concept used in functional analysis (a generalisation of the spectrum of a matrix)
The spectrum of a ring is a concept in commutative algebra
The spectrum of a C*-algebra
A spectrum (homotopy theory)
The Stone space of a Boolean algebra
The spectrum of a theory is a concept in mathematical logic

IEEE Spectrum, a magazine
The ZX Spectrum, a computer
Spectrum Suite of service management products
A fictional international security organisation in the television series Captain Scarlet
The Spectrum Awards (Gaylactic Spectrum Awards) are a literary award.
Spectrum Radio, an AM station based in London.
Spectral Sound, a record label
Two companies:
* Het Spectrum, or "Uitgeverij Het Spectrum", a Dutch publishing house
* Spectrum Strategy Consultants, a management consulting firm
Two music groups:
* Spectrum (band), an Australian group of the 1970s led by Mike Rudd
* A more recent group headed by Peter Kember
Three buildings:
* The Smith Spectrum, a sports arena in Logan, Utah
* The Wachovia Spectrum, formerly The Spectrum, a sports arena in Philadelphia
* The Spectrum Leisure Centre, in Guildford, England