Publikationen

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Fakultäten

Mathematisch-Geographische Fakultät

Mathematik

Publikationen

Materialien für die Schule

Ausgewählte Veröffentlichungen

Optimal recovery by linear functionals, Journal of Approximation Theory 44 (1985), 167-172.
On the real CF-method for polynomial and strong unicity constants, Journal of Approximation theory 55 (1988), 86-102.
With P.M.Gauthier, W.Hengartner: Asymptotic maximum principles for subharmonic and plurisubharmonic functions, Canadian Journal of Mathematics XL (1988), 477-486.
Local uniqueness in non-uniqueness spaces, Approximation Theory and its Applications 4 (1988), 35-39.
With E.B.Saff: On the behavior of zeros and poles of best uniform polynomial and rational approximants, in Nonlinear numerical methods and rational approximation (1988), 57-75.
A note on strong uniqueness constants, Journal of Approximation Theory 58 (1989), 358-360.
With P.B.Borwein, A.Kroo, E.B.Saff: The density of alternation points in rational approximation, in Proceedings of the American Mathematical Society 105 (1989), 881-888.
Ostrowski gaps, overconvergence and zeros of polynomials, in Approximation Theory VI, Vol 1, 303-306.
On the zeros of sequences of polynomials, Journal of Approximation Theory 61 (1990), 351-359.
With H-P.Blatt: Erdös-Turí¡n theorems on a system of Jordan curves and arcs, Constructive Approximation 7 (1991), 19-47.
Interpolation points and zeros of polynomials in approximation theory, Habilitationsschrift (1992), Katholische Universität Eichstätt.
With H.N. Mhaskar: Detection of singularities using segment approximation, Mathematics of Computation 59 (1992), 533-540.
Distribution of Interpolation Points, Arkiv för Mathematik 34 (1996), 103-117.
On the problem of Poreda, Computational Methods and Function Theory (1997).
With H.-P.Blatt, R.K.Kovacheva: On sign changes in weighted polynomial L1-approximation, Acta Mathematica Hungaricae 95 (2002), 309-322.
With H.-P. Blatt, R.K. Kovacheva: Poles and Alternation Points in Real Rational Chebyshev Approximation, Computational Methods and Function Theory 3 (2003), 165-177.
With H.-P. Blatt, R.K. Kovacheva: Sequences with equi-distributed extreme points in uniform polynomial approximation, Journal of Approximation Theory 126 (2004), 157-170.
With M. Sommer: Composing Circular Arcs with Minimal NURBS (2008)