Family tree of Charles STURM
Mathématician
Born Jacques Charles François STURM
French mathematician
Born on September 29, 1803 in Genève , Switzerland
Died on September 18, 1855 in Paris , France
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Jacques Charles François Sturm (29 September 1803 – 15 December 1855) was a French mathematician, who made a significant addition to equation theory with his work, Sturm's theorem.
... Jacques Charles François Sturm (29 September 1803 – 15 December 1855) was a French mathematician, who made a significant addition to equation theory with his work, Sturm's theorem.
Early life
Sturm was born in Geneva, France in 1803. The family of his father, Jean-Henri Sturm, had emigrated from Strasbourg around 1760—about 50 years before Charles-François's birth. His mother's name was Jeanne-Louise-Henriette Gremay.
In 1818, he started to follow the lectures of the academy of Geneva. The death of his father forced Sturm to give lessons to children of the rich in order to support his own family the following year. In 1823, he became tutor to the son of Madame de Staël.
At the end of that year, Sturm stayed in Paris for a short time following the family of his student. He resolved, with his school-fellow Jean-Daniel Colladon, to try his fortune in Paris, and obtained employment on the Bulletin universel.
Discovery
In 1829, he discovered the theorem that bears his name, and concerns real-root isolation, that is the determination of the number and the localization of the real roots of a polynomial.
Work
Sturm benefited from the 1830 revolution, as his Protestant faith ceased to be an obstacle to employment in public high schools. At the end of 1830, he was thus appointed as a professor of Mathématiques Spéciales at the collège Rollin.
He was chosen a member of the Académie des Sciences in 1836, filling the seat of André-Marie Ampère. Sturm became répétiteur in 1838, and in 1840 professor in the École Polytechnique. The same year, after the death of Poisson, Sturm was appointed as mechanics professor of the Faculté des sciences de Paris. His works, Cours d'analyse de l'école polytechnique (1857–1863) and Cours de mécanique de l'école polytechnique (1861), were published after his death in Paris, and were regularly republished.
He was the co-eponym of the Sturm–Liouville theory with Joseph Liouville.
In 1826, with his colleague Jean-Daniel Colladon, Sturm helped make the first experimental determination of the speed of sound in water.
Death
In 1851 his health began to fail. He was able to return to teaching for a while during his long illness, but died in 1855.
The asteroid 31043 Sturm is named for him. Sturm's name is one of the 72 names engraved at the Eiffel Tower.
Distinctions
Grand prix de Mathématiques (4 December 1834)
Member of the academy of Berlin (1835)
Member of the academy of Saint-Petersburg (1836)
Officier de la Légion d'Honneur (1837)
Copley Medal of the Royal Society of London (1840)
Member of the Royal Society of London (1840)
Selected writing
Cours de mécanique de l'École polytechnique (in Italian). Vol. 1. Napoli: Gallo. 1871.
Cours de mécanique de l'École polytechnique (in Italian). Vol. 2. Napoli: Gallo. 1871.
Cours d'analyse de l'Ecole polytechnique. Tome premier (Gauthier-Villars, 1877)
Cours d'analyse de l'Ecole polytechnique. Tome second (Gauthier-Villars, 1877)
Cours de mécanique de l'Ecole polytechnique (Gauthier-Villars, 1883)
See also
Control theory
Oscillation theory
Spectral theory of ordinary differential equations
Submarine signals
References
External links
Gerono, Camille Christophe; Terquem, Olry; Laisant, Charles-Ange; Bricard, Raoul; Boulanger, Auguste (1856), "Notice sur la vie et les travaux de M. Sturm", Nouvelles annales de mathématiques, journal des candidats aux écoles polytechnique et normale, 15: 72
Texts on Wikisource:
"Sturm, Jacques Charles François". New International Encyclopedia. 1905.
"Sturm, Jacques Charles François". Encyclopædia Britannica (11th ed.). 1911.
"Sturm, Jacques-Charles-Francois". Encyclopedia Americana. 1920.
... Jacques Charles François Sturm (29 September 1803 – 15 December 1855) was a French mathematician, who made a significant addition to equation theory with his work, Sturm's theorem.
Early life
Sturm was born in Geneva, France in 1803. The family of his father, Jean-Henri Sturm, had emigrated from Strasbourg around 1760—about 50 years before Charles-François's birth. His mother's name was Jeanne-Louise-Henriette Gremay.
In 1818, he started to follow the lectures of the academy of Geneva. The death of his father forced Sturm to give lessons to children of the rich in order to support his own family the following year. In 1823, he became tutor to the son of Madame de Staël.
At the end of that year, Sturm stayed in Paris for a short time following the family of his student. He resolved, with his school-fellow Jean-Daniel Colladon, to try his fortune in Paris, and obtained employment on the Bulletin universel.
Discovery
In 1829, he discovered the theorem that bears his name, and concerns real-root isolation, that is the determination of the number and the localization of the real roots of a polynomial.
Work
Sturm benefited from the 1830 revolution, as his Protestant faith ceased to be an obstacle to employment in public high schools. At the end of 1830, he was thus appointed as a professor of Mathématiques Spéciales at the collège Rollin.
He was chosen a member of the Académie des Sciences in 1836, filling the seat of André-Marie Ampère. Sturm became répétiteur in 1838, and in 1840 professor in the École Polytechnique. The same year, after the death of Poisson, Sturm was appointed as mechanics professor of the Faculté des sciences de Paris. His works, Cours d'analyse de l'école polytechnique (1857–1863) and Cours de mécanique de l'école polytechnique (1861), were published after his death in Paris, and were regularly republished.
He was the co-eponym of the Sturm–Liouville theory with Joseph Liouville.
In 1826, with his colleague Jean-Daniel Colladon, Sturm helped make the first experimental determination of the speed of sound in water.
Death
In 1851 his health began to fail. He was able to return to teaching for a while during his long illness, but died in 1855.
The asteroid 31043 Sturm is named for him. Sturm's name is one of the 72 names engraved at the Eiffel Tower.
Distinctions
Grand prix de Mathématiques (4 December 1834)
Member of the academy of Berlin (1835)
Member of the academy of Saint-Petersburg (1836)
Officier de la Légion d'Honneur (1837)
Copley Medal of the Royal Society of London (1840)
Member of the Royal Society of London (1840)
Selected writing
Cours de mécanique de l'École polytechnique (in Italian). Vol. 1. Napoli: Gallo. 1871.
Cours de mécanique de l'École polytechnique (in Italian). Vol. 2. Napoli: Gallo. 1871.
Cours d'analyse de l'Ecole polytechnique. Tome premier (Gauthier-Villars, 1877)
Cours d'analyse de l'Ecole polytechnique. Tome second (Gauthier-Villars, 1877)
Cours de mécanique de l'Ecole polytechnique (Gauthier-Villars, 1883)
See also
Control theory
Oscillation theory
Spectral theory of ordinary differential equations
Submarine signals
References
External links
Gerono, Camille Christophe; Terquem, Olry; Laisant, Charles-Ange; Bricard, Raoul; Boulanger, Auguste (1856), "Notice sur la vie et les travaux de M. Sturm", Nouvelles annales de mathématiques, journal des candidats aux écoles polytechnique et normale, 15: 72
Texts on Wikisource:
"Sturm, Jacques Charles François". New International Encyclopedia. 1905.
"Sturm, Jacques Charles François". Encyclopædia Britannica (11th ed.). 1911.
"Sturm, Jacques-Charles-Francois". Encyclopedia Americana. 1920.
Biography from Wikipedia (see original) under licence CC BY-SA 3.0
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