R. J. Nessel

Nikolskii-type inequalities for trigonometric polynomials and entire functions of exponential type

R. J. Nessel, Gerhard Wilmes · Journal of the Australian Mathematical Society · 1978 · 61 citations · Full text

Spectral Theory, Different Metrics, Engineering +12

On summation processes of Fourier expansions in Banach spaces, III. Jackson- and Zamansky-type inequalities for Abel-bounded expansions

P. L. Butzer, R. J. Nessel, Walter Trebels · Tohoku Mathematical Journal · 1975 · 31 citations · Full text

Banach Spaces, Harmonic Space, Interpolation Space +6

On summation processes of Fourier expansions in Banach spaces, II. Saturation theorems

P. L. Butzer, R. J. Nessel, Walter Trebels · Tohoku Mathematical Journal · 1972 · 28 citations · Full text

On summation processes of Fourier expansions in Banach spaces, I. Comparison theorems

P. L. Butzer, R. J. Nessel, Walter Trebels · Tohoku Mathematical Journal · 1972 · 26 citations · Full text

Spectral Theory, Banach Spaces, Harmonic Space +8

Contributions to the theory of saturation for singular integrals in several variables. I

P. L. Butzer, R. J. Nessel · Indagationes Mathematicae (Proceedings) · 1966 · 23 citations

Spectral Theory, Several Variables, Engineering +7