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Mathematics  2007 

Chen's double sieve, Goldbach's conjecture and the twin prime problem, 2

DOI: 10.4064/aa131-4-5

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Abstract:

For every even integer N, denote by D_{1,2}(N) the number of representations of N as a sum of a prime and an integer having at most two prime factors. In this paper, we give a new lower bound for D_{1,2}(N).

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