Reproducing Poussin
نویسندگان
چکیده
منابع مشابه
Generalized De La Vallée Poussin Operators for Jacobi Weights
Starting from a natural generalization of the trigonometric case, we construct a de la Vallée Poussin approximation process in the uniform and L norms. With respect to the classical approach we obtain the convergence for a wider class of Jacobi weights. Even if we only consider the Jacobi case, our construction is very general and can be extended to other classes of weights.
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For trigonometric polynomial approximation on a circle, the de la Vallée Poussin construction has two notable properties as the polynomial degree goes to infinity: it yields uniform convergence for all continuous functions; yet it also exhibits arbitrarily fast convergence for smooth functions. It is allowed to have both properties because it is a uniformly bounded but not positive projection o...
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Nicholas Poussin (1594–1665) is a key figure in the classic tradition of European visual art. From around 1630 onward his drawings develop a shaky quality, and in a letter dated 1650 he says “le tremblement de mes membres augmente comme les ans.” In the absence of detailed evidence, Poussin’s movement disorder has been variously ascribed to Parkinson’s disease or to neurosyphilis. A retrospecti...
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ژورنال
عنوان ژورنال: RACAR : Revue d'art canadienne
سال: 1996
ISSN: 0315-9906,1918-4778
DOI: 10.7202/1073292ar