Its Thomas Joannes Stieltjes Birthday born 29 December 1856 in Zwolle in the Netherlands and died December 31, 1894 in Toulouse, France he was a nineteenth century mathematician who worked on many theories and theses including continued fractions, the quadratures Gaussian polynomials orthogonal ... His work on generalized continued fractions, specifically the consequences of Padé approximants earned him the nickname of the father of the analytic theory of continued fractions. Stieltjes if was interested in civil engineering, promoting the construction of several channels in the southeast of the Dutch province of Drenthe, including one that bears his name in homage (Stieltjeskanaal). Instead of going to pursue his studies and courses in the School of Technology Delft Stieltjes went from time to time in the library where he read the works of great mathematicians such as Carl Friedrich Gauss or Carl Gustav Jacob Jacobi. (And he failed his exams at school sessions in 1875 and the following year in 1876. And was therefore deemed missed! Because the scholastic system that still works too often in the majority of countries developed judging by examination session or similar system and does not take into account the ability of the pupil has the right level) Passionate about science and through the medium of his fathers friend, Professor HG van de Sande Bakhuyzen, Thomas Stieltjes managed to enter as an assistant to astronomical calculations Leiden Observatory in April 1877. In 1878 his role is to make a neighboring star catalog pole In 1882, through the work of Félix Tisserand on the calculation of the mutual inclination orbits, Stieltjes was a remarkable demonstration on the subject and made contact with Charles Hermite quiétait a leading French mathematicians. Then this is the beginning of a great friendship that installs as well as a long and exciting match which still has nearly 432 letters can totaling nearly 921 pages. This correspondence resulted in the discovery of new mathematical concepts. With Hermit, Stieltjes became a substitute teacher at the Polytechnic of Delft (which he was not qualified) for 4 months, from September to December 1883 Stieltjes it received the title of doctor honoris causa still with its recommendations, as those of Emile Picard. Benjamin Baillaud Bourget and Henry who was two of his students published by correspondence after Stieltjes. They greatly admired his teaching and they disaut We went out lessons amazed at the ease of acquisition of general methods ... Ive never known a professor giving as much as him to his students. Since 1884 Stieltjes is passionate and faciné by the Gauss quadrature and formulas derived from this method, it is also intrigued by an integral of a special type of continued fractions, he spent part of his time study different polynomials, particularly orthogonal polynomials found in Gauss quadrature formulas, and in the continued fractions; This is the person who has contributed most to their development and November 8, 1894 he wrote a letter in which he said he found other polynomials which are related to orthogonal polynomials; today they bear his name, they also serve to evaluate the error of Gauss quadrature formulas. Stieltjes showed convergences where the integration interval is over. Stieltjes was appointed professor of differential and integral calculus. Stieltjes proved some inequalities for Gaussian quadratures. Stieltjes realized analytic theory of continued fractions. And created Stieltjes Integral (constant Stieltjes) he was promoted to member of the Royal Dutch Academy of Sciences and the Academy of Sciences of Amsterdam takes as a corresponding member. He was also appointed lecturer at the Faculty of Sciences of Toulouse. In 1892 the Paris Academy of Sciences awarded him the prize Petit Dormoy. the same year (1892) he was given the Lecomte price. In 1894, a summary of some of his work is published in the Proceedings of the Academy of Sciences of Paris. (In this 170-page memory it introduces its integral why his name is remembered.) In 1894 TJ Stieltjes called by the Academy of St. Petersburg to become a corresponding member. Stieltjes is behind several large very important theses such as (in January 1883) with his thesis on the reduction of the observations of the difference in the Layde-Greenwich longitude. It is also the source of many calculations determining the azimuth of the sun time and the reduction of observations to determine the magnetic declination. Stieltjes has done much work in spite of its short life, which ended in 1894. His major work is undoubtedly probably the theorem bearing his name, in part, that is to say, the Riemann-Stieltjes theorem on constants of the integral part of that part of its work on continued fractions. Photo Copyleft
Posted on: Mon, 29 Dec 2014 12:36:58 +0000
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