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Camille Jordan

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Camille Jordan was a very important mathematician from France. He lived from 1838 to 1922. He was born in the city of Lyon. Later, he studied at a famous school called École polytechnique.

He worked as an engineer for a time. Eventually, he became a teacher at two great places. These were the École polytechnique and the Collège de France. People knew him for his unique way of writing math. He often used strange symbols and signs.

Jordan worked on many different math ideas. He helped make Galois theory very popular. He studied groups of things in group theory. He also looked into Mathieu groups. These were the first examples of sporadic groups.

In linear algebra, he found special ways to organize math. We now call these the Jordan normal form and the Jordan matrix. He also worked on how to measure areas. This way of measuring is called the Jordan measure. This idea came before other modern ways of measuring.

His work helped people understand shapes and lines. He is famous for the Jordan curve theorem. This is a rule used in complex analysis. He also wrote many books for students to use. One was a textbook called Cours d'analyse de l'École polytechnique. He wrote about calculus and different kinds of equations. His books were published by Gauthier-Villars.

In 1866, he wrote about polyhedrons. His collected works were published in Paris between 1961 and 1964. They were released in four large volumes.

Jordan won a special prize in 1870. It was called the prix Poncelet. He won this for his book on permutation groups. This book was titled Traité des substitutions.

He was a very respected member of many groups. He was part of the French Academy of Sciences. He was also a member of the Royal Society. He even worked with the Saint Petersburg Academy of Sciences. In 1920, he spoke at a big meeting in Strasbourg. This meeting was called the ICM.

We still remember Camille Jordan today. His name is attached to many math results. Even things in space carry his name. There is an asteroid named 25593 Camillejordan.

It is important not to mix him up with others. Do not confuse him with Wilhelm Jordan. Wilhelm was a geodesist. Do not confuse him with Pascual Jordan. Pascual was a physicist. Camille Jordan remains a giant in the world of math.

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