Kasana, H. S.; Agrawal, P. N.; Singh, M. P. The growth of coefficients of entire Dirichlet series and its derivatives. (English) Zbl 0679.30021 Rend. Mat. Appl., VII. Ser. 6, No. 3, 333-341 (1986). It has been shown that if \(f(s)=\sum^{\infty}_{n=1}a_ n \exp (s\lambda_ n)\) where \(s=\sigma +it\), \(0\leq \lambda_ 1\leq \lambda_ n<\lambda_{n+1}\to \infty\) as \(n\to \infty\) and \[ \lim_{n\to \infty} \sup \log n/\lambda_ n<\infty \] is an entire Dirichlet series of (p,q) order \(\rho\) and lower (p,q) order \(\lambda\) then the derived Dirichlet series has the same (p,q)-growth parameters. Certain relations between the (p,q)-growth parameters of two or more Dirichlet series have also been obtained when their coefficients and exponents satisfy certain asymptotic conditions. Reviewer: O.P.Juneja MSC: 30D15 Special classes of entire functions of one complex variable and growth estimates 30B50 Dirichlet series, exponential series and other series in one complex variable Keywords:Dirichlet series PDFBibTeX XMLCite \textit{H. S. Kasana} et al., Rend. Mat. Appl., VII. Ser. 6, No. 3, 333--341 (1986; Zbl 0679.30021)