Mathematician:Georges Fontené

Mathematician

French mathematician who worked in geometry, analytic geometry, linear algebra, elliptic functions and elliptic integrals.

Also studied hyperspaces and "courbes gauches".

Supposed to have priority over Eugène Rouché and Ferdinand Georg Frobenius on what is known in the English-speaking world as the Rouché-Frobenius Theorem.

Nationality

French

History

• Born: 23 September 1848 in Rousies, France
• Died: 7 April 1923 in 5th arrondissement, Paris, France

Theorems and Definitions

• Fontené Theorems:

First Fontené Theorem

Second Fontené Theorem

Third Fontené Theorem

• Rouché-Fontené Theorem (with Eugène Rouché) as it is known in France: also known as:

Rouché-Frobenius Theorem (after Eugène Rouché and Ferdinand Georg Frobenius)

Rouché-Capelli Theorem (after Eugène Rouché and Alfredo Capelli) as it is known in Italy

Kronecker-Capelli Theorem (after Leopold Kronecker and Alfredo Capelli) as it is known in Russia

• Fontené-Ward Generalized Binomial Coefficient (with Morgan Ward)

Results named for Georges Fontené can be found here.

Definitions of concepts named for Georges Fontené can be found here.

Publications

• 1892: Hyperespace à $\paren {n - 1}$ dimensions
• 1897: Géométrie dirigée. Les angles dans un plan orienté avec des droites dirigées et non dirigées
• 1915: Généralisation d’une formule connue
• 1922: La Relativité restreinte