English

Entire Dirichlet series with monotonous coefficients and logarithmic h-measure

Complex Variables 2015-12-29 v1

Abstract

Let FF be an entire function represented by absolutely convergent for all zCz\in\mathbb{C} Dirichlet series of the form F(z)=n=0+anezλn, F(z) = \sum\nolimits_{n=0}^{+\infty} a_{n}e^{z\lambda_{n}},\ where a sequence (λn)(\lambda_n) such that λnR  (n0)\lambda_n\in\mathbb{R}\ \ (n\geq0), λnλk\lambda_n\not=\lambda_k for any nkn\not=k and (n0): 0λn<β:=sup{λj: j0}+.(\forall n\geq 0):\ 0\leq\lambda_n<\beta:=\sup\{\lambda_j:\ j\geq0\}\leq +\infty. {Let hh be non-decrease positive continuous function on [0,+)[0,+\infty) and Φ\Phi increase positive continuous on [0,+)[0,+\infty) function.} In this paper we {find} the condition {on} (μn)(\mu_n) and (λn)(\lambda_n) {such that} the relation F(x+iy)=(1+o(1))aν(x,F)e(x+iy)λν(x,F)F(x+iy)=(1+o(1))a_{\nu(x, F)}e^{(x+iy)\lambda_{\nu(x, F)}} holds as x+x\to +\infty\ outside some set EE of finite logarithmic hh-measure uniformly in yRy\in\mathbb{R}.

Keywords

Cite

@article{arxiv.1512.08032,
  title  = {Entire Dirichlet series with monotonous coefficients and logarithmic h-measure},
  author = {S. I. Panchuk and T. M. Salo and O. B. Skaskiv},
  journal= {arXiv preprint arXiv:1512.08032},
  year   = {2015}
}