Blättern nach Zeitschriften

Blatt, Hans-Peter ; Kovacheva, Ralitza K.:
Distribution of interpolation points of maximally convergent multipoint Padé approximants.
In: Journal of approximation theory. 191 (2015). - S. 46-57.
ISSN 0021-9045
(Peer-Review-Journal)

Kalmes, Thomas ; Nieß, Markus:
Composition and differentiation operators and fast approximation.
In: Journal of approximation theory. 164 (2012) 1. - S. 57-76.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
On the Chebyshev rank of multivariate splines in L^1-approximation.
In: Journal of approximation theory. 164 (2012) 11. - S. 1472-1495.
ISSN 0021-9045
(Peer-Review-Journal)

Andrievskii, Vladimir V. ; Blatt, Hans-Peter:
On approximation of continuous functions by trigonomeric polynomials.
In: Journal of approximation theory. 163 (2011). - S. 249-266.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
The Chebyshev rank of multivariate polynomials in L1-approximation.
In: Journal of approximation theory. 162 (2010).
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Blatt, Simon ; Luh, Wolfgang:
On a generalization of Jentzsch´s theorem.
In: Journal of approximation theory. 159 (Juli 2009) 1. - S. 26-38.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Grothmann, René ; Kovacheva, Ralitza K.:
Sequences with equi-distributed extreme points in uniform polynomial approximation.
In: Journal of approximation theory. 126 (2004). - S. 157-170.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Uniqueness of periodic best L^1-approximations.
In: Journal of approximation theory. 123 (2003) 1. - S. 89-109.
ISSN 0021-9045
(Peer-Review-Journal)

Davydov, Oleg ; Sommer, Manfred:
Interpolation by weak Chebyshev spaces.
In: Journal of approximation theory. 102 (2000) 2. - S. 243-262.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Götz, Mario:
On the divergence phenomenon in Hermite-Fejér interpolation.
In: Journal of approximation theory. 106 (2000) 2. - S. 276-286.
ISSN 0021-9045
(Peer-Review-Journal)

Andrievskii, Vladimir V. ; Blatt, Hans-Peter:
Erdös-Turán type theorems on quasiconformal curves and arcs.
In: Journal of approximation theory. 97 (1999) 2. - S. 334-365.
ISSN 0021-9045
(Peer-Review-Journal)

Andrievskii, Vladimir V. ; Blatt, Hans-Peter:
Erdös-Turán-type theorems on piecewise smooth curves and arcs.
In: Journal of approximation theory. 88 (1997) 1. - S. 109-134.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred ; Strauß, Hans:
Interpolation by uni- and multivariate generalized splines.
In: Journal of approximation theory. 83 (1995) 3. - S. 423-447.
ISSN 0021-9045
(Peer-Review-Journal)

Kroó, András ; Schmidt, Darrell ; Sommer, Manfred:
On A-spaces and their relation to the Hobby-Rice theorem.
In: Journal of approximation theory. 68 (1992) 2. - S. 136-154.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
On the distribution of simple zeros of polynomials.
In: Journal of approximation theory. 69 (1992) 3. - S. 250-268.
ISSN 0021-9045
(Peer-Review-Journal)

Grothmann, René:
On the Zeros of Sequences of Polynomials.
In: Journal of approximation theory. 61 (Juni 1990) 3. - S. 351-359.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred ; Strauß, Hans:
A characterization of Descartes systems in Haar subspaces.
In: Journal of approximation theory. 57 (1989) 1. - S. 104-116.
ISSN 0021-9045
(Peer-Review-Journal)

Grothmann, René:
A Note on Strong Uniqueness Constants.
In: Journal of approximation theory. 58 (1989) 3. - S. 358-360.
ISSN 0021-9045
(Peer-Review-Journal)

Nürnberger, Günther ; Schumaker, Larry L. ; Sommer, Manfred ; Strauß, Hans:
Uniform approximation by generalized splines with free knots.
In: Journal of approximation theory. 59 (1989) 2. - S. 150-169.
ISSN 0021-9045
(Peer-Review-Journal)

Grothmann, René:
On the Real CF-Method for Polynomial Approximation and Strong Unicity Constants.
In: Journal of approximation theory. 55 (1988) 1. - S. 86-103.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Properties of unicity subspaces in L_1-approximation.
In: Journal of approximation theory. 52 (1988) 3. - S. 269-283.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Saff, Ed B.:
Behavior of zeros of polynomials of near best approximation.
In: Journal of approximation theory. 46 (1986). - S. 323-344.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Lipschitz continuity and strong unicity in G. Freud's work.
In: Journal of approximation theory. 46 (1986). - S. 25-31.
ISSN 0021-9045
(Peer-Review-Journal)

Grothmann, René:
Optimal Recovery by Linear Functionals.
In: Journal of approximation theory. 44 (1985) 2. - S. 167-172.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
On strong uniqueness in linear Chebyshev approximation.
In: Journal of approximation theory. 41 (1984). - S. 159-169.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Weak Chebyshev spaces and best L_1-approximation.
In: Journal of approximation theory. 39 (1983) 1. - S. 54-71.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Existence of pointwise-Lipschitz-continuous selections of the metric projection for a class of Z-spaces.
In: Journal of approximation theory. 34 (1982) 2. - S. 115-130.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Finite dimensional subspaces and alternation.
In: Journal of approximation theory. 34 (1982) 2. - S. 131-145.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Braess, Dietrich:
Zur rationalen Approximation von $e^{-x}$ auf $[0,\infty]$.
In: Journal of approximation theory. 30 (1980). - S. 169-172.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Continuous selections of the metric projection for 1-Chebyshev spaces.
In: Journal of approximation theory. 26 (1979) 1. - S. 46-53.
ISSN 0021-9045
(Peer-Review-Journal)

Nürnberger, Günther ; Sommer, Manfred:
Characterization of continuous selections of the metric projection for spline functions.
In: Journal of approximation theory. 22 (1978) 4. - S. 320-330.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Ein hinreichendes Kriterium für geometrische Konvergenz rationaler Tschebyscheff-Approximationen auf $[0,\infty]$.
In: Journal of approximation theory. 23 (1978). - S. 229-241.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter ; Herzfeld, Ute ; Klotz, Volker:
Ein Approximationsproblem aus der Pharmakokinetik.
In: Journal of approximation theory. 21 (1977). - S. 89-106.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred ; Strauß, Hans:
Eigenschaften von schwach tschebyscheffschen Räumen.
In: Journal of approximation theory. 21 (1977) 3. - S. 257-268.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Ein Störungssatz zur rationalen Tschebyscheff-Approximation über $[0,\infty ]$.
In: Journal of approximation theory. 21 (1977). - S. 246-256.
ISSN 0021-9045
(Peer-Review-Journal)

Sommer, Manfred:
Charakterisierung von Minimallösungen in normierten Vektorräumen durch Eigenschaften von Hyperebenen.
In: Journal of approximation theory. 14 (1975) 2. - S. 103-114.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Some remarks on an alternation theorem of Geiger.
In: Journal of approximation theory. 11 (1974). - S. 338-342.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Nicht-lineare gleichmäßige Simultanapproximation.
In: Journal of approximation theory. 8 (1973). - S. 210-248.
ISSN 0021-9045
(Peer-Review-Journal)

Blatt, Hans-Peter:
Über rationale Tschebyscheff-Approximation mehrerer Funktionen.
In: Journal of approximation theory. 9 (1973). - S. 126-148.
ISSN 0021-9045
(Peer-Review-Journal)