Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Bernd Knoop"'
Autor:
Hans-Bernd Knoop, Xinlong Zhou
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 30, Iss 2 (2001)
Some inequalities for the ”derivatives” of iterated linear operators will be presented, which will be applied for the investigation of degrees of approximation. Thus, with the application of the Laplacian we improve some classical results concer
Externí odkaz:
https://doaj.org/article/37f919164cb54778b9594ad2b602e804
Autor:
Heiner Gonska, Hans-Bernd Knoop
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 30, Iss 2 (2001)
Externí odkaz:
https://doaj.org/article/9a3d3b5fdafc44da8b67e1c9772b692e
Autor:
Heiner Gonska, Hans-Bernd Knoop
Publikováno v:
Results in Mathematics. 62:223-226
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e127a150c49d303477a3086e3e46364
https://doi.org/10.1007/s00025-012-0277-3
https://doi.org/10.1007/s00025-012-0277-3
Autor:
Hans-Bernd Knoop, Xinlong Zhou
Publikováno v:
Journal of Mathematical Analysis and Applications. 255(1):147-162
Some inequalities associated with the Laplacian for trigonometric polynomials are given, which will be applied to investigate the behavior in approximation by trigonometric polynomials in higher dimensions and the best lower and upper estimates for s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfd88f458a7438fc9b341bd03085133b
Autor:
Roswitha Schröder, Bernd Knoop
Publikováno v:
Journal of Plant Physiology. 146:139-147
Summary Media isolated from growing cell cultures (conditioned media) contain «viability factors» which promote the survival of plant cells plated at low density. We developed a procedure for the purification of the viability factor (VF) of tobacco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a3debc4192c5b16f331e81d081d78c9
https://doi.org/10.1016/s0176-1617(11)81980-2
https://doi.org/10.1016/s0176-1617(11)81980-2
We prove that, to approximate continuous target functions defined on the unit sphere of $${\mathbb{R}^d}$$ , neural networks are at least as good as algebraic polynomials.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc097d587f72da9e14cd5ed77cef99ac
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=84868497184
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=84868497184
Autor:
Hans-Bernd Knoop, Xinlong Zhou
Publikováno v:
Results in Mathematics. 25:315-330
We will use the method introduced in the first part of our paper (see [5]) to give the best lower estimate of ∥f - Bn f ∥ for the Bernstein polynomial operators by means of a modified modulus of smoothness. The key role in our approach is the est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97dc4313237e1d99eae36722576cf81c
https://doi.org/10.1007/bf03323413
https://doi.org/10.1007/bf03323413
Publikováno v:
Zeitschrift fur medizinische Physik. 20(1)
Today, in most cases PET examinations are performed using PET/CT hybrid systems. While acceptance testing and routine control of the basic modalities PET and CT, respectively, are described by appropriate regulations, corresponding instructions with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e6c09e2ce173ca03a0b22e7b7b6306e2
https://pubmed.ncbi.nlm.nih.gov/20304719
https://pubmed.ncbi.nlm.nih.gov/20304719
Autor:
Hans-Bernd Knoop, Xinlong Zhou
Publikováno v:
New Developments in Approximation Theory ISBN: 9783034897334
In trigonometric approximation one can show that smoothness of a function is equivalent to a quick decrease to zero of its error of approximation by trigonometric polynomials. The key steps to show this are the Jackson- and the Bernstein-inequality.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16e2b5e63c6d54de2978b1fe9b1bdd41
https://doi.org/10.1007/978-3-0348-8696-3_6
https://doi.org/10.1007/978-3-0348-8696-3_6
Autor:
Werner Haussmann, Hans-Bernd Knoop
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 4, Iss 2 (1975)
Not available.
Externí odkaz:
https://doaj.org/article/69846bedf22249e0b8208c9ff54c676d