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Eigenvalues of smooth positive definite kernels

Published online by Cambridge University Press:  20 January 2009

J. B. Reade
Affiliation:
Mathematics DepartmentManchester UniversityManchesterM13 9PL, England
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For positive definite C1 kernels on a finite real interval the eigenvalues λn are known to be o(1/n2). In this paper this result is shown to be best possible in the best possible sense, namely that, given any decreasing sequence λn, which is o(1/n2), there exist positive definite C1 kernels whose eigenvalues are λn.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1992

References

REFERENCES

1.Chaundy, T. W. and Jolliffe, A. E., The uniform convergence of a certain class of trigonometrical series, Proc. London Math. Soc. (2), 15 (1916), 214216.Google Scholar
2.Reade, J. B., Eigenvalues of smooth kernels, Math. Proc. Cambridge Philos. Soc. 95 (1984), 135140.CrossRefGoogle Scholar
3.Reade, J. B., On the sharpness of Weyl's estimate for the eigenvalues of smooth kernels, SIAM J. Math. Anal. 16 (1985), 548550.CrossRefGoogle Scholar
4.Reade, J. B., Positive definite Cp kernels, SIAM J. Math. Anal. 17 (1986), 420421.CrossRefGoogle Scholar
5.Titchmarsh, E. C., Theory of Functions (Oxford University Press, 1932).Google Scholar