Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-06-04T09:08:40.551Z Has data issue: false hasContentIssue false

Some representation formulae for entire functions of exponential type

Published online by Cambridge University Press:  17 April 2009

Clément Frappier
Affiliation:
Départment de Mathématiques Appliquées, École Polytechnique de Montréal, Campus de l'Université de Montréal, Case Postale 6079, Succursale “A”, Monteéal, Québec, H3C 3A7, Canada
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We obtain some explicit formulae for series of the type

where f is an entire function of exponential type τ, bounded on the real exis (and satisfying in the first case). These series are expressed in terms of the derivatives of f and Bernoulli numbers. We examine the case where f is a trigonometric polynomial which lead us, in particular, to a new representation of the associated Fejér mean.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1988

References

[1]Apostol, T.M., Introduction to Analytic number theory (Springer-Verlag, New York, 1976).Google Scholar
[2]Boas, R.P., Entire Functions (Academic Press, New York, 1954).Google Scholar
[3]Frappier, C., ‘Some inequalities for trigonometric polynomials’, J. Austral. Math. Soc. Ser. A. 39 (1985), 216226.CrossRefGoogle Scholar
[4]Frappier, C. and Rahman, Q.I., ‘Une formule de quadrature pour les fonctions entières de type exponentiel’, Ann. Sci. Math. Québec 10 (1986), 1726.Google Scholar
[5]Macintyre, A.J., ‘Laplace's transformation and integral functions’, Proc. London Math. Soc (2) 45 (1938), 120.Google Scholar
[6]Whittaker, J.M., ‘Interpolatory function theory’, in Cambridge Tracts in Math. and Math. Physics 33 (Cambridge University Press, Cambridge, 1935).Google Scholar