Évariste Galois
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Évariste Galois was a French mathematician and political activist. While still in his teens, he was able to determine a necessary and sufficient condition for a polynomial to be solvable by radicals,
A portrait of Évariste Galois aged about 15
The Cour d'honneur of the Lycée Louis-le-Grand, which Galois attended as a boy.
Augustin-Louis Cauchy reviewed Galois's early mathematical papers.
Battle for the Town Hall by Jean-Victor Schnetz. Galois, as a staunch republican, would have wanted to participate in the July Revolution of 1830 but was prevented by the director of the École Normale.
Galois theory
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In mathematics, Galois theory, originally introduced by Évariste Galois, provides a connection between field theory and group theory. This connection, the fundamental theorem of Galois theory, allows
Évariste Galois
…condition for a polynomial to be solvable by radicals, thereby solving a problem that had been open for 350 years. His work laid the foundations for Galois theory and group theory, two major branches of abstract algebra. Galois was a staunch Republican and was heavily involved in the political turmoil that…
A portrait of Évariste Galois aged about 15