Ahmad ibn Ibrahim ibn Ali ibn Munim al-Abdari, was a mathematician, originally from Dénia in Andalusia, he lived and taught in Marrakesh, a major city of which location, where he was known as one of the best scholars in geometry and number theory
Ahmad ibn Munim al-Abdari Ahmad ibn Ibrahim ibn Ali ibn Munim al-Abdari (died 1228) was a mathematician, originally from Dénia in Andalusia. He lived and taught in Marrakesh where he was known as one of the best scholars in geometry and number theory. He is often confused with Muhammad ibn 'Abd al Mun'im, a different mathematician who worked in the court of Roger II of Sicily.
Jacques Hadamard Jacques Salomon Hadamard ForMemRS (] ; 8 December 1865 – 17 October 1963) was a French mathematician who made major contributions in number theory, complex function theory, differential geometry and partial differential equations.