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Numericana's  Biographies

Numericana pages feature direct links to biographical information published by others, most notably the remarkable collection of  MacTutor  biographies edited by  J.J. O'Connor  and  E.F. Robertson  at the  School of Mathematics and Statistics  of the  University of St Andrews  (Scotland).  On March 29, 2006, we started replacing some of those links by pointers to the summaries listed below, whenever we had particular comments or wanted to recommend more than one source of biographical information about a scientist.

 
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 Evariste Galois 
 (1811-1832)

Evariste Galois   (1811-1832)
MacTutor   |   The Evariste Galois Archive   |   Math93   |   Fictionalization

At the age of 20,  Evariste Galois  was mortally wounded in a duel  (with either  Perscheux d'Herbinville  or  Ernest Duchatelet)  over a young lady called  Stéphanie-Félice Poterin du Motel.  Left for dead, Galois (who had no seconds) was discovered by a local peasant and transported to the  Cochin  hospital in Paris, where he died from peritonitis the next day  (May 31, 1832).  To his brother Alfred, he had whispered:

Ne pleure pas.  J'ai besoin de tout mon courage pour mourir à 20 ans.
Please don't cry.  I need all my courage to die at twenty.

Held on June 2, the funerals of Galois were attended by more than 2000 people and served as a focal point of  republican  riots which lasted for several days.  His dubious status as a martyred activist could have remained Galois' main claim to fame had it not been for his wish to have his last mathematical papers reviewed by Gauss or Jacobi...  His brother,  Alfred Galois  and his closest friend  Auguste Chevalier  did send out copies of the work, which were apparently ignored by the originally intended recipients.  In 1842, one of these copies reached Joseph Liouville (1809-1882)  who finally published what is now known as  Galois Theory,  in 1846.

The story is poignant enough as it is, but some biographers are perpetuating the  myth  that Galois wrote feverishly all he knew about  Group Theory  on the night before the fateful duel, apologizing again and again for not having the time to do it better...  The leading offender is clearly E.T. Bell (1883-1960) who wrote an emphatic chapter in his popular 1937 collection of biographies entitled  Men of Mathematics.  Actually, there's only one occurence of such a statement in all the mathematical manuscripts of Galois  (an "author's note" about an incomplete proof).  Otherwise, the myth seems entirely based on the following sentence which appears in the letter known as "Galois' Testament", dated May 29, 1832 and addressed to his friend  Auguste Chevalier.  The passage is about what Galois called  ambiguity theory  (now associated with Riemann Sheets).

Mais je n'ai pas le temps, et mes idées ne sont pas encore
bien développées sur ce terrain, qui est immense. 

But I am running out of time, and my ideas are not yet
sufficiently developped in this field, which is immense.

Until the age of 12, Galois had been schooled entirely by his mother,  Adélaïde-Marie Demante Galois.  Galois was then enrolled at  Louis-le-Grand  (the most prestigious  lycée  of Paris)  as a boarder in the  quatrième  grade, on 6 October 1823.  He took his first mathematics class there (under M. Vernier) in Februay 1827 and became enthralled with the subject.  In 1828-1829, Galois was a  Mathématiques Spéciales  student under Louis Richard (1795-1849) at  Louis-le-Grand.  Athough he never published anything himself, Richard was an outstanding teacher of mathematics, in the French  Grandes Ecoles  tradition which is still enduring to this day  (see Lucien Refleu, 1920-2005).  Besides Galois, Louis Richard also taught Urbain Le Verrier (1811-1877), Joseph Serret (1819-1885) and Charles Hermite (1822-1901).

In April 1829, on the recommendation of Louis Richard, Galois had his first paper published  (Proof of a Theorem on Periodic Continued Fractions)  in the  Annales de Gergonne.  On May 25 and June 1, 1829, Galois submitted to the Academy his early research on equations of prime degree  (such an equation is solvable by radicals if and only if all its roots are rational functions of any two of them).  He was 17.

Normal Subgroups   |   Galois Rings.   |   Galois Fields

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