R. J. Nessel

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All published works

Action	Title	Year	Authors
+	Sharpness Almost Everywhere of Equivalence Assertions for the Best Approximation by Algebraic Polynomials	1996	Lorens A. Imhof R. J. Nessel
+	Resonance principles with applications to mean ergodic theorems and projection operators	1995	D. Nasri-Roudsari R. J. Nessel R. Zeler
+	Sharp error bounds for the Crank-Nicolson and Saulyev difference scheme in connection with an initial boundary value problem for the inhomogeneous heat equation	1995	H. Esser St.J. Goebbels Gerald Lüttgens R. J. Nessel
+	A resonance principle with rates in connection with pointwise estimates for the approximation by interpolation processes	1995	Lorens A. Imhof R. J. Nessel
+	Towards a survey of Paul Butzer’s contributions to approximation theory	1995	R. J. Nessel
+	The sharpness of a pointwise error bound for the Fejér-Hermite interpolation process on sets of positive measure	1994	Lorens A. Imhof R. J. Nessel
+	On the comparison of error bounds for finite difference schemes	1993	B. B�ttgenbach H. Esser R. J. Nessel
+	Convolution processes of Fejér type and the divergence almost everywhere of a pointwise comparison	1993	N. Kirchhoff R. J. Nessel
+	Aspects of de La Vallée Poussin's work in approximation and its influence	1993	P. L. Butzer R. J. Nessel
+	A sharp error estimate for the numerical solution of a Dirichlet problem for the Poisson equation	1992	Bernhard Büttgenbach H. Esser Gerald Lüttgens R. J. Nessel
+	Divergence almost everywhere of a pointwise comparison of trigonometric convolution processes with their discrete analogues	1992	N. Kirchhoff R. J. Nessel
+	On the sharpness of error bounds in connection with finite difference schemes on uniform grids for boundary value problems of ordinary differential equations	1991	Bernhard Büttgenbach H. Esser R. J. Nessel
+ PDF Chat	Book Review: The averaged moduli of smoothness with applications in numerical methods and approximation	1990	R. J. Nessel
+	Quantitative condensation of singularities for convolution processes of Fejér-type	1990	N. Kirchhoff R. J. Nessel E. van Wickeren
+ PDF Chat	On the Riemann convergence of positive linear operators	1989	H. Mevissen R. J. Nessel E. van Wickeren
+	Some Pointwise Negative Results in Multivariate Approximation by Convolution Processes of Fejér’s Type	1989	N. Kirchhoff R. J. Nessel
+ PDF Chat	On counterexamples in multivariate approximation	1989	R. J. Nessel E. van-Wickeren
+	Sequential convergence and approximation in the space of Riemann integrable functions	1988	W. Dickmeis H. Mevissen R. J. Nessel E. van Wickeren
+	Book Review: Strong approximation by Fourier series	1987	R. J. Nessel
+	Necessary Conditions for the Comparison of Sequences of Linear Functionals	1987	W. Dickmeis R. J. Nessel E. van Wickeren
+	The Divergence almost Everywhere of a Pointwise Comparison of Fejér and Abel-Poisson means	1986	W. Dickmeis R. J. Nessel E. van Wickeren
+	A quantitative condensation of singularities on arbitrary sets	1985	W. Dickmeis R. J. Nessel
+	On the comparison of multiplier processes in Banach spaces	1985	R. J. Nessel E. van Wickeren
+	A general approach to counterexamples in numerical analysis	1984	W. Dickmeis R. J. Nessel E. van Wickeren
+	On the Sharpness of Estimates in Terms of Averages	1984	W. Dickmeis R. J. Nessel E. van Wickeren
+	A general approach to quantitative negative results in approximation theory	1984	W. Dickmeis R. J. Nessel E. van Wickeren
+	On an Inequality of Devore	1983	W. Dickmeis R. J. Nessel
+	Behavior of partial sums of lacunary Fourier series	1982	Gerhard Wilmes Gerd Mitschke R. J. Nessel
+	Quasikonvexe Multiplikatoren starker Konvergenz	1981	H. Mertens R. J. Nessel
+	A unified approach to certain counterexamples in approximation theory in connection with a uniform boundedness principle with rates	1981	W. Dickmeis R. J. Nessel
+	On uniform boundedness principles and banach - steinhaus theorems with rates	1981	W. Dickmeis R. J. Nessel
+	Some Global Direct Estimates for Kantorovitch Polynomials	1981	M. Becker R. J. Nessel
+	An equivalence theorem concerning multipliers of strong convergence	1980	H. Mertens R. J. Nessel
+	Nikolskii-type inequalities in connection with regular spectral measures	1979	R. J. Nessel Gerhard Wilmes
+	Lax-type theorems and a unified approach to some limit theorems in probability theory with rates	1979	P. L. Butzer W. Dickmeis L. Hahn R. J. Nessel
+	An elementary approach to inverse approximation theorems	1978	Michael Becker R. J. Nessel
+	Ungleichungen vom Nikolskii- und Riesz-Typ in Banach Räumen und ihre Andwendung auf klassische Potentialräume	1978	Gerhard Wilmes R. J. Nessel
+ PDF Chat	Nikolskii-type inequalities for trigonometric polynomials and entire functions of exponential type	1978	R. J. Nessel Gerhard Wilmes
+	Global Approximation Theorems for the Szász-Mirakjan Operators in Exponential Weight Spaces	1978	Michael Becker D. Kucharski R. J. Nessel
+	Über Multiplikatoren starker Konvergenz für FOURIER‐Entwicklungen in BANACH‐Räumen	1978	H. Mertens R. J. Nessel
+	Lax-Type Theorems with Orders in Connection with Inhomogeneous Evolution Equations in Banach Spaces	1978	P. L. Butzer W. Dickmeis R. J. Nessel
+	Alternative forms with orders of the lax equivalence theorem in Banach spaces	1977	P. L. Butzer W. Dickmeis Hu. Jansen R. J. Nessel
+	A local comparison theorem with applications to approximation in certain group and multiplier algebras	1976	G. K. Bragard R. J. Nessel
+	Multipliers with respect to Abel-bounded spectral measures in locally convex spaces	1976	J. Junggeburth R. J. Nessel
+ PDF Chat	Saturation for Farvard operators in weighted function spaces	1976	Michael Becker P. L. Butzer R. J. Nessel
+	A multiplier criterion in Euclideann-space with applications to Bernstein inequalities	1975	R. J. Nessel Gerhard Wilmes
+	Multipliers with respect to spectral measures in banach spaces and approximation	1975	R. J. Nessel Walter Trebels
+	Approximation by families of multipliers for (C, α)-bounded Fourier expansions in locally convex spaces. I. Order-preserving operators	1975	J. Junggeburth R. J. Nessel
+ PDF Chat	On summation processes of Fourier expansions in Banach spaces, III. Jackson- and Zamansky-type inequalities for Abel-bounded expansions	1975	P. L. Butzer R. J. Nessel Walter Trebels
+	Teilbarkeitssätze in Banach-Algebren mit Anwendungen auf lineare Approximationsprozesse	1975	G. K. Bragard R. J. Nessel
+	Teilbarkeitssätze in Banach-Algebren	1975	G. K. Bragard R. J. Nessel
+	On the Comparison of Approximation Processes in Banach Algebras	1974	G. K. Bragard R. J. Nessel
+	Multipliers with respect to spectral measures in Banach spaces and approximation I. Radial multipliers in connection with Riesz-bounded spectral measures	1973	P. L. Butzer R. J. Nessel Walter Trebels
+	Saturation Theory in Connection with Mellin Transform Methods	1972	W. Kolbe R. J. Nessel
+ PDF Chat	On summation processes of Fourier expansions in Banach spaces, II. Saturation theorems	1972	P. L. Butzer R. J. Nessel Walter Trebels
+	On the Comparison of Approximation Processes in Hilbert Spaces	1972	P. L. Butzer R. J. Nessel Walter Trebels
+ PDF Chat	On summation processes of Fourier expansions in Banach spaces, I. Comparison theorems	1972	P. L. Butzer R. J. Nessel Walter Trebels
+	Simultaneous saturation in connection with dirichlet's problem for a wedge	1971	W. Kolbe R. J. Nessel
+	Contributions to the theory of saturation for singular integrals in several variables. V	1969	Hubert Berens R. J. Nessel
+	Über Favardklassen von Summationsprozessen mehrdimensionaler Fourierreihen	1968	R. J. Nessel Andreas Pawelke
+	Contributions to the Theory of Saturation for Singular Integrals in Several Variables. IV	1968	Hubert Berens R. J. Nessel
+	Über Peano- und Riemann-Ableitungen in der Norm	1967	E. Görlich R. J. Nessel
+	Contributions to the Theory of Saturation for Singular Integrals in Several Variables, III Radial Kernels	1967	R. J. Nessel
+	Contributions to the Theory of Saturation for Singular Integrals in Several Variables, II Applications	1967	R. J. Nessel
+ PDF Chat	Favard classes for 𝑛-dimensional singular integrals	1966	P. L. Butzer R. J. Nessel
+	Contributions to the theory of saturation for singular integrals in several variables. I	1966	P. L. Butzer R. J. Nessel
+	Über Eine Verallgemeinerung Eines Satzes von de la Vallée Poussin	1964	P. L. Butzer R. J. Nessel

Common Coauthors

Coauthor	Papers Together
P. L. Butzer	13
W. Dickmeis	13
E. van Wickeren	9
Walter Trebels	6
Gerhard Wilmes	5
G. K. Bragard	4
N. Kirchhoff	4
H. Esser	4
Lorens A. Imhof	3
H. Mertens	3
Hubert Berens	2
W. Kolbe	2
Bernhard Büttgenbach	2
J. Junggeburth	2
Michael Becker	2
Gerald Lüttgens	2
H. Mevissen	2
Gerd Mitschke	1
Hu. Jansen	1
B. B�ttgenbach	1
Michael Becker	1
E. Görlich	1
R. Zeler	1
St.J. Goebbels	1
E. van-Wickeren	1
D. Nasri-Roudsari	1
M. Becker	1
Andreas Pawelke	1
D. Kucharski	1
L. Hahn	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	Semi-Groups of Operators and Approximation	1967	Paul P. Butzer Hubert Berens	13
+	Theory of Approximation of Functions of a Real Variable	1963	A.F. TIMAN	13
+ PDF Chat	On summation processes of Fourier expansions in Banach spaces, II. Saturation theorems	1972	P. L. Butzer R. J. Nessel Walter Trebels	8
+	On uniform boundedness principles and banach - steinhaus theorems with rates	1981	W. Dickmeis R. J. Nessel	7
+ PDF Chat	Multipliers for (C, α)-Bounded Fourier Expansions in Banach Spaces and Approximation Theory	1973	Walter Trebels	7
+ PDF Chat	On summation processes of Fourier expansions in Banach spaces, I. Comparison theorems	1972	P. L. Butzer R. J. Nessel Walter Trebels	6
+ PDF Chat	Comparison theorems for a generalized modulus of continuity	1971	Jan Boman Harold S. Shapiro	5
+ PDF Chat	Topics in Approximation Theory	1971	Harold S. Shapiro	5
+	Multipliers with respect to spectral measures in Banach spaces and approximation I. Radial multipliers in connection with Riesz-bounded spectral measures	1973	P. L. Butzer R. J. Nessel Walter Trebels	5
+	Some theorems on interpolation spaces with applications to approximation inL p	1967	Jörgen Löfström	5
+ PDF Chat	Some Tauberian theorems with applications to approximation theory	1968	Harold S. Shapiro	4
+	Introduction to Fourier Analysis on Euclidean Spaces.	1971	Elias M. Stein Guido Weiss	4
+	A unified approach to certain counterexamples in approximation theory in connection with a uniform boundedness principle with rates	1981	W. Dickmeis R. J. Nessel	4
+	Jackson and Bernstein-type inequalities for families of commutative operators in Banach spaces	1972	P. L. Butzer K. Scherer	4
+ PDF Chat	Introduction to the Theory of Fourier Integrals	1938	A. C. Offord	4
+	The Banach-Steinhaus Theorem with Rates, and Applications to Various Branches of Analysis	1980	P. L. Butzer	4
+	Uniform-convergence factors for Fourier series of functions with a given modulus of continuity	1971	S. A. Telyakovskiĭ	4
+	On the Comparison of the Processes of Summation	1964	Jean Favard	3
+	On the sharpness of error bounds in connection with finite difference schemes on uniform grids for boundary value problems of ordinary differential equations	1991	Bernhard Büttgenbach H. Esser R. J. Nessel	3
+	On the Lax equivalence theorem equipped with orders	1977	P. L. Butzer R Weis	3
+	Smoothing and Approximation of Functions	1970	Harold S. Shapiro	3
+ PDF Chat	Tables of integral transforms	1954		3
+ PDF Chat	Orthogonal Polynomials	1971		3
+	An equivalence theorem concerning multipliers of strong convergence	1980	H. Mertens R. J. Nessel	3
+	<i>Difference Methods for Initial-Value Problems</i>	1959	Robert D. Richtmyer E. H. Dill	3
+	Difference Methods for Initial-Value Problems	1968	E. I. Robert D. Richtmyer K. W. Morton	3
+	On the Comparison of Approximation Processes in Hilbert Spaces	1972	P. L. Butzer R. J. Nessel Walter Trebels	3
+	The Laplace Transform. By D. V. Widder. Pp. x, 406. 36s. 1941. Princeton Mathematical series, 6. (Princeton University Press; Humphrey Milford)	1943	T. A. A. B.	3
+ PDF Chat	Tables of Integral Transforms	2005	Bateman Manuscript H. Bateman Arthur Erdélyi	3
+	Approximation of functions	2017	George G. Lorentz	3
+	Nikolskii-type inequalities in connection with regular spectral measures	1979	R. J. Nessel Gerhard Wilmes	3
+ PDF Chat	A tauberian theorem related to approximation theory	1968	Harold S. Shapiro	3
+ PDF Chat	On the class of saturation in the theory of approximation, II	1961	Gen-ichirô Sunouchi	3
+ PDF Chat	The mean convergence of orthogonal series. II	1948	Harry Pollard	3
+	On the Sharpness of Estimates in Terms of Averages	1984	W. Dickmeis R. J. Nessel E. van Wickeren	3
+ PDF Chat	Besov Spaces and Applications to Difference Methods for Initial Value Problems	1975	Philip Brenner Vidar Thomée Lars B. Wahlbin	3
+	Mean Convergence of Expansions in Laguerre and Hermite Series	1965	Richard Askey Stephen Wainger	3
+	Negative Results in Connection with Favard’s Problem on the Comparison of Approximation Processes	1984	Rolf Joachim Nessel E. van Wickeren	2
+ PDF Chat	Fourier series in several variables	1964	Victor L. Shapiro	2
+ PDF Chat	A remark on the preceding note by Bochner	1934	I. J. Schoenberg	2
+ PDF Chat	Characterization of certain classes of functions	1962	Gen-ichirô Sunouchi	2
+	Moduli of Smoothness	1987	Z. Ditzian Вилмос Тотик	2
+	Convolution processes of Fejér type and the divergence almost everywhere of a pointwise comparison	1993	N. Kirchhoff R. J. Nessel	2
+	Saturation in the Theory of Best Approximation	1964	Gen-ichirô Sunouchi	2
+	Über Multiplikatoren starker Konvergenz für FOURIER‐Entwicklungen in BANACH‐Räumen	1978	H. Mertens R. J. Nessel	2
+	Equivalent Representations for the Infinitesimal Generator of Higher Orders in Semi-group Theory	1965	Hubert Berens	2
+ PDF Chat	Discrete analogue of a theorem of Littlewood-Paley	1961	Gen-ichirô Sunouchi	2
+ PDF Chat	Poisson integrals for Hermite and Laguerre expansions	1969	Benjamin Muckenhoupt	2
+	On Jackson-Type Inequalities in Approximation Theory	1978	P. L. Butzer J. Junggeburth	2
+ PDF Chat	On the representation of a function by certain Fourier integrals	1939	Harald Cramér	2