### Some articles on *spectral*:

**Spectral**Purity

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**Spectral**purity is a quantification of the monochromaticity of a given light sample ...

**Spectral**purity is given by

**Spectral**purity is easier to achieve in devices that generate visible and ultraviolet light, since higher frequency light results ...

**Spectral**Concentration Problem

... The

**spectral**concentration problem in Fourier analysis refers to finding a time sequence whose discrete Fourier transform is maximally localized on a given frequency interval, as ...

**Spectral**Theory Of Ordinary Differential Equations - Tools From Abstract

**Spectral**Theory -

**Spectral**Measure

... See also

**Spectral**theorem and Projection-valued measure Let H be a Hilbert space and T a self-adjoint bounded operator on H with 0 ≤ T ≤ I, so that the spectrum σ(T) of T is contained in ... If p(t) is a complex polynomial, then by the

**spectral**mapping theorem σ(p(T)) = p(σ(T)) and hence

### More definitions of "spectral":

- (
*adj*): Like or being a phantom.

Example:*"Spectral emanations"*

Synonyms: apparitional, ghostlike, ghostly, phantasmal, spiritual

### Famous quotes containing the word spectral:

“How does one kill fear, I wonder? How do you shoot a spectre through the heart, slash off its *spectral* head, take it by its *spectral* throat?”

—Joseph Conrad (1857–1924)