On positivity properties of fundamental cardinal polysplines
H. Render (2006)
Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques
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H. Render (2006)
Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques
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Micula, G. (2003)
Rendiconti del Seminario Matematico
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Mühlbach, Günter W., Tang, Yuehong (2005)
Annales Mathematicae et Informaticae
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Dagnino, C., Demichelis, V., Santi, Elisabetta (2003)
Rendiconti del Seminario Matematico
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Winfried Sickel (1990)
Forum mathematicum
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Kumar, Arun, Govil, L.K. (1992)
International Journal of Mathematics and Mathematical Sciences
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Pílnikova, Jana, Chalmovianský, Pavel (1999)
Journal for Geometry and Graphics
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Jiří Kobza, Dušan Zápalka (1991)
Applications of Mathematics
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For quadratic spine interpolating local integrals (mean-values) on a given mesh the conditions of existence and uniqueness, construction under various boundary conditions and other properties are studied. The extremal property of such's spline allows us to present an elementary construction and an algorithm for computing needed parameters of such quadratic spline smoothing given mean-values. Examples are given illustrating the results.
Jiří Kobza (1992)
Applications of Mathematics
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The extremal property of quadratic splines interpolating the first derivatives is proved. Quadratic spline smoothing the given values of the first derivative, depending on the knot weights and smoothing parameter , is then studied. The algorithm for computing appropriate parameters of such splines is given and the dependence on the smoothing parameter is mentioned.