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Detailed explanation-1: -Mudumbai Seshachalu Narasimhan FRS (7 June 1932 – 15 May 2021) was an Indian mathematician. His focus areas included number theory, algebraic geometry, representation theory, and partial differential equations. He was a pioneer in the study of moduli spaces of holomorphic vector bundles on projective varieties.

Detailed explanation-2: -He was a world-renowned mathematician of extraordinary breadth and depth, who made fundamental contributions to diverse fields in mathematics such as algebraic geometry, differential geometry, representation theory and partial differential equations.

Detailed explanation-3: -A mathematician with distinguished contributions to differential and algebraic geometry. Dr. Narasimhan’s major contributions are in the field of algebraic and differential geometry, more specifically in the field of vector bundles.

Detailed explanation-4: -Évariste Galois was a French mathematician who produced a method of determining when a general equation could be solved by radicals and is famous for his development of early group theory. He died very young after fighting a duel.

Detailed explanation-5: -He worked out the Riemann series, the elliptic integrals, hypergeometric series, the functional equations of the zeta function, and his own theory of divergent series, in which he found a value for the sum of such series using a technique he invented that came to be called Ramanujan summation.