Work on prime numbers included the determination of the number of primes not exceeding a given number, wrote an important book on the theory of congruences, proved that there was always at least one prime between n and 2n for n > 3.

The most prominent twentieth-century mathematician.

From `A Short Account of the History of Mathematics' (4th edition, 1908) by W. W. Rouse Ball.

Norwegian mathematician. Worked on elliptic functions and integrals, algebraic solution of equations and solubility by radicals.

Arab mathematician, lived when spread of ideas was very slow, wrote Hisab al-jabr wal-muqabala, concepts of the Middle East. The "al-jabr" gave us the word algebra." introduced the decimal system, rules for solving linear and quadratic equations, the word "algorithm" comes from his name.

Life and work of 19th century mathematician and philosopher of mathematics; by Ivor Grattan-Guinness and Alison Walsh.

Main research was functional analysis, doctorate was obtained under Hilbert's supervision, main interest was in integral equations and Hilbert space, best remembered for the Gram-Schmidt orthogonalisation process.

(Encyclopedia.com) Greek mathematician, physicist, and inventor.

Worked on trigonometric series, set theory, integration analysis, constructive logic, topology, approximation methods, probability, statistics, random processes, information theory, dynamical systems, algorithms, celestial mechanics, Hilbert's 13th problem, and ballistics. Also, studied and applications of mathematics to problems of biology, geology, linguistics and the crystallization of metals. Born and lived in Russia.

Illustrated collecction.