Mathematician:Srinivasa Aiyangar Ramanujan

Srīnivāsa Aiyangār Rāmānujan (also Srinivasa Iyengar Ramanujan, in Tamil: சீனிவாச இராமானுஜன் or ஸ்ரீனிவாஸ ஐயங்கார் ராமானுஜன்) was an Indian mathematician who made substantial contributions to mathematical analysis, number theory, infinite series and continued fractions.

His name is also seen rendered as  Ramanujam: the final letter of such names is ambiguous in Tamil.

Nationality
Indian (Tamil)

History

 * Born: 22 Dec 1887, Erode, Tamil Nadu state, India
 * Died: 26 April 1920, Kumbakonam, Tamil Nadu state, India

Theorems and Definitions

 * Dougall-Ramanujan Identity
 * Hardy-Ramanujan Number (with Godfrey Harold Hardy)
 * Landau-Ramanujan Constant (independently of Edmund Landau)
 * Ramanujan's Congruences
 * Ramanujan-Nagell Equation (with Trygve Nagell)
 * Ramanujan-Peterssen Conjecture (with Hans Petersson)
 * Ramanujan-Skolem's Theorem (with Thoralf Albert Skolem)
 * Ramanujan-Soldner Constant (with Johann Georg von Soldner)
 * Ramanujan Summation
 * Ramanujan Theta Function
 * Ramanujan Graph
 * Ramanujan's Tau Function
 * Ramanujan Prime
 * Ramanujan's Constant
 * Ramanujan Sum
 * Rogers-Ramanujan Identities (independently of Leonard James Rogers)
 * Rogers-Ramanujan Continued Fraction (independently of Leonard James Rogers)