LUCAS DE PESLOÜAN, Charles. N.H Abel. Sa vie et son œuvre. 1906.

Niels Henrik Abel (1802-1829) is a Norwegian mathematician. Like Galois at the same time, he died young but left a considerable body of work.
"He is known for his work in mathematical analysis on the semiconvergence of numerical series, sequences and series of functions, on the convergence criteria of generalized integral and on the notion of elliptic integral; in algebra, on the resolution of equations . " (Accromath).