numerical range


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numerical range

[nü′mer·i·kəl ′rānj]
(mathematics)
For a linear operator T of a Hilbert space into itself, the set of values assumed by the inner product of Tx with x as x ranges over the set of vectors with norm equal to 1.
References in periodicals archive ?
The score places households into four categories, linked to a numerical range, on the retirement preparedness spectrum, based on their ability to cover all estimated retirement expenses in a down market: needs attention, 0--65; fair, 66--80; good, 81--95; and on target, 96--150+.
On the Numerical Range of the Product of a Composition Operator with Its Adjoint.
The content of GCSEs is now changing in both countries and when England introduces its new grading system, which will replace the current A* to G with a numerical range from 1 to 9, any comparison will prove virtually impossible.
The numerical range is a useful tool in the study of matrices and operators (see, e.
All materials in the titre spectrum from 235 to 60,000 dtex can be processed with production speeds of up to 450 m/min; the expanded numerical range opens up new markets for customers with creative products too.
For a in A, define the numerical range W(a) of a to be that of operator U(a), that is,
The account is completed by bars indicating body length and hindwing length accompanied by the numerical range of measurements.
Wobbe is a measure of the interchangeability associated with different qualities of natural gas and is expressed in a numerical range.
Similar to the numerical range utilized by the FLSa database, a "1" could represent infrequent contact (e.
But some of them said ''defining a medium- to long-term price stability by setting a numerical range could be a matter to examine,'' according to the minutes.
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