Eksempler på brug af Orthogonal polynomials på Engelsk og deres oversættelser til Dansk
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A few particular orthogonal polynomials were known before his work.
Hermite made important contributions to number theory and algebra, orthogonal polynomials, and elliptic functions.
Other isolated instances of orthogonal polynomials occurring in the work of various mathematicians is mentioned later.
Chebyshev was probably the first mathematician to recognise the general concept of orthogonal polynomials.
Askey published an important book Orthogonal polynomials and special functions in 1975.
His mathematics teacher was Fejér and Lax writes in: Lanczos was much influenced by Fejér;he learnt from him about Fourier series, orthogonal polynomials, and interpolation.
In Roy discusses his contributions to on orthogonal polynomials and puts the work into its historical context.
Erdélyi was a leading expert on special functions,in particular hypergeometric functions, orthogonal polynomials and Lamé functions.
In this paper he introduced a new system of orthogonal polynomials now known as the Krawtchouk polynomials, which are polynomials associated with the binomial distribution.
It was in this work that his famous Chebyshev polynomials appeared for the first time buthe later went on to develop a general theory of orthogonal polynomials.
He learnt from him about Fourier series, orthogonal polynomials, and interpolation.
A few particular orthogonal polynomials were known before his work. Legendre and Laplace had encountered the Legendre polynomials in their work on celestial mechanics in the late eighteenth century.
Geronimus has pointed out that in his first paper on orthogonal polynomials, Chebyshev already had the Christoffel- Darboux formula.
In Roy discusses his contributions to on orthogonal polynomials and puts the work into its historical context:Chebyshev was probably the first mathematician to recognise the general concept of orthogonal polynomials.
It is impossible in an article like this to give much in the way of details of the impressive publications by Askey on the harmonic analysis of special functions, orthogonal polynomials and special functions, and special functions related to group theory.
Christoffel not only contributed to all these fields, buthis interests extended to orthogonal polynomials and continued fractions, and the applications of his work to the foundations of tensor analysis, to geodetical science, to the theory of shock waves, to the dispersion of light.
Christoffel published papers on function theory including conformal mappings, geometry and tensor analysis, Riemann 's o-function,the theory of invariants, orthogonal polynomials and continued fractions, differential equations and potential theory, light, and shock waves.
In the book hypergeometric functions, Bessel functions,the Jacobi orthogonal polynomials, the Hahn orthogonal polynomials, Laguerre polynomials, Hermite polynomials, Meixner polynomials, Krawtchouk polynomials and Charlier polynomials all play their part in addition to other orthogonal polynomials and special functions.
In 1965 Askey published On some problems posed by Karlin andSzegö concerning orthogonal polynomials and by this time his major contributions to special functions and orthogonal polynomials was well under way.
Christoffel not only contributed to all these fields, buthis interests extended to orthogonal polynomials and continued fractions, and the applications of his work to the foundations of tensor analysis, to geodetical science, to the theory of shock waves, to the dispersion of light. Nevertheless, it is widely recognised, at least in the German speaking countries of Europe, that Riemann was the best mathematician of the 19th century, behind Gauss and ahead of Weierstrass.
Examples are extensions of Mergelyan's approximation theorem and the theorem of Frigyes Riesz andMarcel Riesz concerning measures on the unit circle orthogonal to polynomials.