Abstract
Let (vk) n1 be arbitrary fixed natural numbers satisfying the inequalities 1 ≤ 2[(vk + 1)/2] ≤ r. We prove that there exists a unique monospline of least Lp deviation in [a,b], 1 < p < ∞, among all monosplines of degree r with free knots (Xk) n1 , a < x1 < ... < xn < b, of multiplicities (vk) n1 respectively.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bakhvalov, N. S., On the optimality of the linear methods of approximation of operators on convex classes of functions, Ž. Vycisl. Mat. i Mat. Fiz. 2 (1971), 1014–1018.
Barrar, R. B. — Loeb, H. L., Existence of best spline approximation with free knots. J. Math. Anal. Appl. 31 (1970), 383–390.
Barrar, R. B. — Loeb, H. L., On a nonlinear characterization problem for monosplines. J. Approximation Theory 18 (1976), 220–240.
Barrar, R. B. — Loeb, H. L., On monosplines with odd multiplicities of least norm. J. Analyse Math. (to appear).
Barrow, D., On multiple node Gaussian quadrature formulae. Math. Comp. 52 (1978), 431–439.
Bellman, R., On the positivity of determinants with dominant main diagonal. J. Math. Anal. Appl. 59 (1977), 210.
Bojanov, B. D., Best methods of interpolation for certain classes of differentiable functions. Mat. Zametki 17 (1975), 511–524.
Bojanov, B. D., Best approximation of linear functional in Wp r. Pliska 1 (1977), 100–111.
Bojanov, B. D., Existence and characterization of monosplines of least L p deviation. Proceedings of the International Conference on Constructive Functions Theory, Blagoevgrad, 1977. (to appear).
de Boor, C., On the approximation by α-polynomials, in Approximation with Special Emphasis of Spline Functions. (I. J. Schoenberg, Ed.), pp. 157–183, Academic Press, New York, London, 1969.
Davis, P. J., Interpolation and Approximation. Blaisdell Publ. Co., New York, 1963.
Jetter, K. — Lange, G., Die Eindeutigkeit L 2 -optimaler Polynomialer Monosplines. Math. Z. 18 (1978) , 23–24.
Johnson, R. S., On monosplines of least deviation. Trans. Am. Math. Soc. 96 (1960), 458–477.
Karlin, S., Total positivity, interpolation by splines and Green’s functions of differential operators. J. Approximation Theory 4 (1971), 91–112.
Karlin, S., On a class of best nonlinear approximation problems. Bull. Am. Math. Soc. 78 (1972), 43–49.
Karlin, S. — Micchelli, C., The fundamental theorem of algebra for monosplines satisfying boundery conditions. Israel J. Math. 11, (1972), 405–451.
Karlin, S., On a class of best nonlinear approximation problems and extended monosplines. in Studies in Spline Functions and Approximation Theory, pp. 19–66, Academic Press, New York, 1976.
Micchelli, C., The fundamental theorem of algebra for monosplines with multiplicities, in Linear Operators and Approximation. (Butzer, P. L. — Kahane, J. — Nagy B, Sz., Eds), pp. 419–430, Birkhauser, Basel, 1972.
Ortega, J. M. — Rheinboldt, W. O., Iterative Solution of Nonlinear Equations in Several Variables. Academic Press, New York, London, 1970.
Powell, M. J., On best L2 spline approximations, in Differentialgleichungen , Approximationstheorie. ISNM 9, (1968), 317–339.
Rice, J. R., The Approximation of Functions, vol. 2, Addison Wesley, Mass., 1969.
Schoenberg, I. J., On best approximation of linear operators, Nederl. Akad. Wetensch. Proc. Ser. A 67 (1964), 115–163.
Schumaker, L. L., Zeros of spline functions and applications. J. Approximation Theory 18 (1976), 152–168.
Schwartz, J. T., Nonlinear Functional Analysis. Gordon and Brench, New York, 1969.
Smolyak, S. A., Optimal restoration of functions and functionals of them. Candidate Disertation, Moscow State University, 1965.
Zensykbaev, A. A., Best quadrature formula for certain classes of periodic functions. Izv. Akad. Nauk SSSR Ser. Mat. 41 (1977), 1110–1124.
Žensykbaev, A. A., On best quadrature formulae for some classes on nonperiodic functions. Dokl. Akad. Nauk SSSR 236 (1977), 531–534.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1979 Springer Basel AG
About this chapter
Cite this chapter
Bojanov, B.D. (1979). Uniqueness of the Monosplines of Least Deviation. In: Hämmerlin, G. (eds) Numerische Integration. International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / Série Internationale D’Analyse Numérique, vol 45. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-6288-2_4
Download citation
DOI: https://doi.org/10.1007/978-3-0348-6288-2_4
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-7643-1014-1
Online ISBN: 978-3-0348-6288-2
eBook Packages: Springer Book Archive