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Transforms which almost vanish at infinity

Published online by Cambridge University Press:  24 October 2008

Louis Pigno
Affiliation:
Kansas State University, Manhattan, Kansas

Extract

Let be the circle group, M() the set of bounded Borel measures on and ℤ the additive group of integers. If μ ∈ M() and n ∈ ℤ, define

A well-known result of Rajchman states that

The following quantitative generalization of this result has been given in (2) by K. de Leeuw and Y. Katznelson.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1980

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References

REFERENCES

(1)Davenport, H.On a theorem of P. J. Cohen. Mathematika 7 (1960), 9397.CrossRefGoogle Scholar
(2)de Leeuw, K. and Katznelson, Y.The two sides of a Fourier-Stieltjes transform and almost idempotent measures. Israel J. Math. 8 (1970), 213229.CrossRefGoogle Scholar
(3)Gardner, P. and Pigno, L.The two sides of a Fourier-Stieltjes transform. Archiv der Mathematik 32 (1979), 7578.CrossRefGoogle Scholar
(4)Graham, C. C.Non-Sidon sets in the support of a Fourier-Stieltjes transform. Colloq. Math. 36 (1976), 269273.CrossRefGoogle Scholar
(5)López, J. M. and Ross, K. A.Sidon Sets (New York, Marcel Dekker).Google Scholar
(6)Pigno, L.Fourier-Stieltjes transforms which vanish at infinity off certain sets. Glasgow Math. J. 19 (1978), 4956.CrossRefGoogle Scholar
(7)Pigno, L.Small sets in the support of a Fourier-Stieltjes transform. Colloq. Math. (to appear).Google Scholar
(8)Pigno, L. and Smith, B.Almost idempotent measures on compact abelian groups. J. Functional Analysis (to appear).Google Scholar
(9)Pigno, L. and Smith, B. Semi-idempotent and semi-strongly continuous measures. (Submitted.)Google Scholar
(10)Ramsey, L. T. and Wells, B. B.Fourier-Stieltjes transforms of strongly continuous measures. Michigan Math. J. 24 (1977), 1319.CrossRefGoogle Scholar
(11)Wallen, L. J.Fourier-Stieltjes transforms tending to zero. Proc. Amer. Math. Soc. 24 (1970), 651652.Google Scholar