2015/02/28 by Favorov, Sergii Yu.
#30B50 (primary) #42A75 (secondary) #Complex Variables (math.CV) #FOS: Mathematics
paper · doi:10.48550/arxiv.1503.00175
Whenever all differences between zeros of two holomorphic almost periodic functions in a strip form a discrete set, then both functions are infinite products of periodic functions with commensurable periods. In particular, the result is valid for some classes of Dirichlet series.