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Henri Poincare
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THE LIFE OF HENRI POINCARE
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Contributions
Some of his contributions to today’s society are: Celestial mechanics, fluid mechanics, optics, electricity, telegraphy, capillarity, elasticity, thermos dynamics, potential theory, quantum theory, theory of relativity and physical cosmology. -
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Science Contributions
algebraic topology, the theory of analytic functions of several complex variables, the theory of abelian functions, algebraic geometry, the Poincare conjecture, proven in 2003 by Grigori Perelman., Poincare recurrence theorem, hyperbolic geometry, number theory the three-body problem, the theory of Diophantine equations, Electromagnetism, the special, theory of relativity, the fundamental group. -
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THE LIFE OF JULES Henri Poincare
Jules Henri Poincare was a French mathematician, theoretical, engineer, and philosopher of science. Born on April 29, 1854 to an influential wealthy French family. His father Leon Poincare was a professor of medicine. His mother Eugenie Launois, she educated and took care of Poincare when he was diagnosed with diphtheria at a young age. Poincare also had a younger sister Aline, who married the spiritual philosopher, Emile Boutroux. -
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Becoming a mathematician
In 1862 Poincare attended the Lycée in Nancy (renamed the Lycée Henri Poincare in his honor along with the Henri Poincare University both located in Nancy). He attended the Lycée for eleven years proving to be one of the top students. He exceeded in composition. He won first prize in a competition between the top pupils from all the Lycées across France named Concurs General. In 1870 he graduated from the Lycée with a baccalaureate in both letters and science. -
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War time
In 1870 during the Franco-Prussian War he served in the Ambulance Corps along his father. -
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ATTENDING COLLEGE
1873 Poincare attended the École Polytechnique as the top qualifier. Studied mathematics as a student of Charles Hermite. Poincare excelled and published his first paper (Démonstration nouvelle des propriétés de l'indicatrice d'une surface) 1874. He graduated from the École Polytechnique in 1875. November 1875 to June 1878 Poincare attended École des Mines while studying of mathematics in addition to mining engineering syllabus, and received a degree of ordinary mining engineer in March 1879. -
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Work as inspector
When Poincare graduated from Écoles des Mines, he joined the Corps des Mines as an inspector for the Vesoul region in northeast France. Poincare witnessed the mining disaster that occurred in Magny in August 1879 where 18 miners died. He carried out the investigation in a characteristically thorough and humane way -
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Doctorate
During the same time Poincare preparing for his Doctorate in Science in mathematics under the supervision of Charles Hermite. His doctoral thesis was in the field of differential equations. It was named Sur les propriétés des fonctions définies par les équations aux différences partielles. -
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Discoveries
Poincare devised a new way of studying the properties of these equations. He not only faced the question of determining the integral of such equations, but also was the first person to study their general geometric properties. He realized that they could be used to model the behavior of multiple bodies in free motion within the Solar System. Poincare graduated from the University of Paris in 1879 -
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Teaching
After receiving his degree, Poincare began teaching as junior lecturer in mathematics at the University of Caen in Normandy (in December 1879). At the same time, he published his first major article concerning the treatment of a class of automorphic functions. -
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Creating a branch of mathematics and different jobs
In 1881–1882, Poincare created a new branch of mathematics: qualitative theory of differential equations. He never fully abandoned his mining career to mathematics. He worked at the Ministry of Public Services as an engineer in charge of northern railway development from 1881 to 1885. He eventually became chief engineer of the Corps des Mines in 1893 and inspector general in 1910. -
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career
Beginning in 1881 and for the rest of his career, he taught at the University of Paris (the Sorbonne). He was initially appointed as the maître de conférences d'analyse (associate professor of analysis). Eventually, he held the chairs of Physical and Experimental Mechanics, Mathematical Physics and Theory of Probability, and Celestial Mechanics and Astronomy. In 1887, at the young age of 32, Poincare was elected to the French Academy of Sciences. -
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career
In 1887, at the young age of 32, Poincare was elected to the French Academy of Sciences. He became its president in 1906, and was elected to the Académie française on 5 March 1908. In 1887, he won Oscar II, King of Sweden's mathematical competition for a resolution of the three-body problem concerning the free motion of multiple orbiting bodies -
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Failed Proposal
In 1893, Poincare joined the French Bureau des Longitudes, which engaged him in the synchronization of time around the world. In 1897 Poincare backed an unsuccessful proposal for the decimalization of circular measure, and hence time and longitude. It was this post which led him to consider the question of establishing international time zones and the synchronization of time between bodies in relative motion. -
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Trials
In 1904, he intervened in the trials of Alfred Dreyfus. He attacked the spurious scientific claims of some of the evidence brought against Dreyfus, who was a Jewish officer in the French army charged with treason by colleagues. Poincare was the President of the Société Astronomique de France (SAF), the French astronomical society, from 1901 to 1903. -
Death of Poincare
In 1912, Poincare underwent surgery for some prostate problems he was having and subsequently died from an embolism on 17 July 1912, in Paris at the age of 58. He was buried in the Poincare family vault in the Cemetery of Montparnasse, Paris. His impute into the mathematics and science are well known and will pass on in many more generations