Yuan Wang, Chinese mathematician (Lanhsi, Chekiang Province 29 April 1930 –

Proved that every large even integer is the sum of a prime and of a product of at most 4 primes

Proved that every sufficiently large even integer can be represent as the sum of a product of no more than three primes and a product of no more than four primes (1950s)

Proved that there are infinitely many primes p such that p+2 is a product of at most 4 primes (1956)

Established that every large even integer is a sum of a product of at most 2 primes and product of at most 3 primes (1957)

Obtained that any sufficiently large even number is the sum of two almost prime numbers, one of which is a product of at most two prime factors and other, a product of at most two prime factors

With L.K. Hua proposed a method for numerical evaluation of multiple integrals based on classical algebraic number theory and Diophantine approximations known as Hua-Wang method (1958-64)

With K.T. Fang proposed the concept of uniform designs (1978)

With Kai-Tai Fang first found a set of small samples of quasi-random numbers (1981) 

With K.T. Fang developed a sequential algorithm for optimization and its applications to regression analysis (1990) and a sequential algorithm for solving a system of nonlinear equations (1991)

With K.T. Fang & H.L. Wong developed a new method for generating the uniform distribution on the unit sphere (1992)