Vinogradov's theorem with almost equal summands
  Let $\theta > 11/20$. We prove that every sufficiently large odd integer $n$ can be written as a sum of three primes $n = p_1 + p_2 + p_3$ with $|p_i - n/3| \leq n^{\theta}$ for $i\in\{1,2,3\}$. 
Kaisa Matom\"aki, James Maynard, Xuancheng Shao
math.NT