Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-19T03:51:09.333Z Has data issue: false hasContentIssue false

Fourier-Laplace transforms decaying exponentially

Published online by Cambridge University Press:  24 October 2008

H. Kaneta
Affiliation:
Department of Mathematics, Okayama University, Okayama 700, Japan

Extract

Let ƒ(x) be a C-valued function which is integrable with respect to a positive measure m on the Borel σ-field of R = (– ∞, ∞). We shall give necessary and sufficient conditions under which the following Fourier-Laplace transform f(λ) of ƒ(x) decays exponentially as λ → ∞:

where θ is a constant with –π/2 ≤ θ ≤ π/2.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Feller, W.. An Introduction to Probability Theory and its Applications, Vol. II, 2nd ed. (Wiley, 1971).Google Scholar
[2]Titchmarsh, E. C.. The Theory of Functions, 2nd ed. (Oxford University Press, 1933).Google Scholar
[3]Levinson, N.. Gap and Density Theorems (Amer. Math. Soc., 1940).CrossRefGoogle Scholar