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Urysohn integral operators with homogeneous kernel : approximation properties in modular spaces

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Here we state some modular approximation theorems for a class of nonlinear integral operators, acting on functions defined on locally compact groups, whose kernels satisfy some Lipschitz conditions and some general homogeneity assumptions. Moreover we study the order of modular approximation in modular Lipschitz classes. Applications to nonlinear Mellin convolution operators are given.
Rocznik
Tom
Strony
145--182
Opis fizyczny
Bibliogr. 34 poz.
Twórcy
autor
  • Universitá degli Studi di Perugia, Dipartimento di Matematica e Informatica, Via Vanvitelli, 1, 06123 Perugia - Italia
autor
  • Universitá degli Studi di Perugia, Dipartimento di Matematica e Informatica, Via Vanvitelli, 1, 06123 Perugia - Italia
Bibliografia
  • [1] F. Barbieri, Approssimazione mediante nuclei momento, Atti Sem. Mat. Fis. Univ. Modena 32, (1983), 308-328.
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  • [3] C. Bardaro - I. Mantellini, Linear integral operators with homogeneous kernel: approximation properties in modular spaces. Applications to Mellin-type convolution operators and to some classes of fractional operators, in Applied Math. Rev., vol I, World Scientific Publ., G. Anastassiou Ed. (2000), 45-67.
  • [4] C. Bardaro - J. Musielak - G. Vinti, On absolute continuity of a modular connected with strong summability, Commentationes Math. 34, (1994), 21-33.
  • [5] C. Bardaro - J. Musielak - G. Vinti, Approximation by nonlinear integral operators in some modular function spaces, Annales Polonici Math. 53, (1996), 173-182.
  • [6] C. Bardaro - J. Musielak - G. Vinti, On the definition and properties of a general modulus of continuity in some functional spaces, Math. Japonica 43, (1996), 445-450.
  • [7] C. Bardaro - J. Musielak - G. Vinti, Some modular inequalities related to Fubini-Tonelli Theorem, Proc. A. Razmadze Math. Inst., 118, (1998), 3-19.
  • [8] C. Bardaro - G. Vinti, Modular estimates of integral operators with homogeneous kernels in Orlicz type classes, Results in Math., 19, (1991), 46-53.
  • [9] C. Bardaro - G. Vinti, Some estimates of certain integral operators in generalized fractional Orlicz classes, Numer. Funct. Anal. Optimiz. 12, (1991), 443-453.
  • [10] C. Bardaro - G. Vinti, Modular approximation by nonlinear integral operators on locally compact groups, Commentationes Math. 35, (1995), 25-47.
  • [11] C. Bardaro - G. Vinti, Modular estimates and modular convergence for linear integral operators in: Mathematical Analysis, Wavelets, and Signal Processing. Inter. Conf, in Honor of Professor P. L. Butzer, Cairo, January 3-9, 1994, Contemporary Math. 190, (1995), 95-105.
  • [12] C. Bardaro - G. Vinti, A modular convergence theorem for certain nonlinear integral operators with homogeneous kernel, Collectanea Math. 48, (1997), 393-407.
  • [13] C. Bardaro - G. Vinti, On the order of modular approximation for nets of integral operators in modular Lipschitz classes, Functiones et Approximatio, special volume dedicated to Professor Julian Musielak, 26, (1998), 139-154.
  • [14] C. Bardaro - G. Vinti, Nonlinear integral operators in modular Lipschitz classes: rates of modular approximation, Proc. Conf. "Function Spaces V", Poznań, 1998, Marcel Dekker, Lecture Notes in Pure and Applied Mathematics, 213 (2000), 71-84.
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  • [17] P. L. Butzer - S. Jansche, The finite Mellin transform, Mellin-Fourier series and the Mellin-Poisson summation formula, Prooceedings of 3rd. Int. Conference on Functional Analysis and Approximation Theory, Maratea, 1996, (Ed. F. Altomare), Rend. Circ. Mat. Palermo (2), Suppl. No. 52 Vol. I (1998), 55-81.
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  • [28] J. Musielak, Orlicz Spaces and Modular Spaces, Lecture Notes in Math. 1034, Springer-Verlag, (1983).
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  • [30] J. Musielak, On nonlinear integral operators, Proceedings of "Real Analysis and Measure Theory", Ischia, Italy, (1996), Atti Sem. Mat. Fis. Univ. Modena, 47, (1999), 183-190.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS2-0002-0054
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