# Volume 17 - 1994

### 1. Estimate of sums of Dirichlet series

This paper discusses the problem of primes in short intervals using certain analytical considerations involving mean value estimates for products of Dirichlet polynomials and series.

### 2. On some over primes

It will be shown that, for any $\delta > 0$, ${\sum_{p\leq n}}^* \; \frac{\log p}{p} = \frac{1}{2} \log n + O\Big((\log n)^{\frac{5}{6}+\delta}\Big),$ where (*) restricts the summation to those primes $p$, which satisfy $n = kp+r$ for some integers $k$ and $r$, $p/2 < r < p$. This result is connected with questions concerning prime divisors of binomial coefficients.