Results 271 to 280 of about 299,922 (311)
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Monatshefte f�r Mathematik, 1999
The author considers the operators \[ \widetilde Tf(t)= {1\over\sqrt{w(t)}} T(f(r)\sqrt{w(r)})(t), \] where \(T\) is the Hardy-Littlewood maximal function, the Hilbert transform or the Carleson operator. It has been relevant, in questions of harmonic analysis on noncompact rank one symmetric spaces, the boundedness of \(\widetilde T\) from \(L^p_w ...
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The author considers the operators \[ \widetilde Tf(t)= {1\over\sqrt{w(t)}} T(f(r)\sqrt{w(r)})(t), \] where \(T\) is the Hardy-Littlewood maximal function, the Hilbert transform or the Carleson operator. It has been relevant, in questions of harmonic analysis on noncompact rank one symmetric spaces, the boundedness of \(\widetilde T\) from \(L^p_w ...
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Pointwise Estimate for Exponential-Type Operators
Southeast Asian Bulletin of Mathematics, 2000The authors obtain a pointwise estimate for three general exponential-type operators by using the concept of Ditzian-Totik modulus of smoothness.
Song, Zhanjie, Liu, Xiwu, Guo, Shunsheng
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Exponential estimates of bernstein type
Siberian Mathematical Journal, 1992See the review in Zbl 0742.60030.
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A Tauberian Theorem of Exponential Type
Canadian Journal of Mathematics, 19861. Introduction. We will be interested in Tauberian theorems concerning the limiting behaviour of a monotone function U and its Laplace transformA famous theorem of Karamata concerns the case in which the function U is regularly varying (i.e., U(tx)/U(t) → xα(t → ∞) for x > 0).
Geluk, J. L. +2 more
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Exponential-Type or Bernstein-Type Operators
1987Relations between the rate of convergence of several well-known and much studied approximation operators and the modulus presented in this book will be studied. Earlier partial results on the subject were important for motivating the investigation of ω ϕ r (f,t) p . Results given in detail in this chapter are new.
Z. Ditzian, V. Totik
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Szász–Mirakyan Type Operators Which Fix Exponentials
Results in Mathematics, 2017In the last years several sequences of positive linear operators were constructed, in order to approximate larger classes of functions and/or to furnish a better rate of convergence. Some references in this direction are given in the introduction of this paper.
Tuncer Acar +3 more
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Approximation of entire functions of exponential type by exponential sums*
Lithuanian Mathematical Journal, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Six-Parameter Exponential-Type Potential and the Identity for the Exponential-Type Potentials
Communications in Theoretical Physics, 2002We propose a six-parameter exponential-type potential (SPEP), which has been shown to be a shape-invariant potential with a translation of parameters. For this reducible potential, the exact energy levels are obtained by using the supersymmetric shape invariance technique. Choosing appropriate parameters, four classes of exponential-type potentials and
Jia Chun-Sheng +4 more
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On new exponential-type operators
Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Symmetric Composition of Exponential Type Operators
Journal of Fourier Analysis and ApplicationszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Qiuhui Chen, Tao Qian
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