Spectrum is the trade name of Charter Communications, which is widely used by market consumers and commercial cable television channels, internet, telephone, and wireless service providers.
In mathematics, particularly in functional analysis, the spectrum of a bounded linear operator is a generalisation of the set of eigenvalues of a matrix.
In commutative algebra, the prime spectrum of a ring R is the set of all prime ideals of R, and is usually denoted by Spec R {\displaystyle \operatorname {Spec} {R}} ; in algebraic geometry it is simultaneously a topological space equipped with the sheaf of rings O {\displaystyle {\mathcal {O}}}.
In mathematics, the support of a measure μ \mu on a measurable topological space {\displaystyle } is a precise notion of where in the space X X the measure "lives".
In the physical sciences, the term spectrum was introduced first into optics by Isaac Newton in the 17th century, referring to the range of colors observed when white light was dispersed through a prism.
Borland Racing Developments is an Australian championship winning manufacturer of open-wheel racing cars, principally in the junior categories of Formula Ford and Formula Vee.
Spectrum is the official publication of Adventist Forum and a non-official publication of the Seventh-day Adventist Church, published four times a year.
Henry Charles Bond, known professionally as Two Headed Boy, is an English musician, singer-songwriter and multi-instrumentalist from Colchester, Essex.
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