Hardy Ramanujan Journal |

In the present paper, we use Ramachandra's kernel function of the second order, namely ${\rm Exp} ((\sin z)^2)$, which has some advantages over the earlier kernel ${\rm Exp} (z^{4a+2})$ where $a$ is a positive integer. As an outcome of the new kernel we are able to handle $\Omega$-theorems for error terms in the asymptotic formula for the summatory function of the coefficients of generating functions of the ${\rm Exp}(\zeta(s)), {\rm Exp\,Exp}(\zeta(s))$ and also of the type ${\rm Exp\,Exp}((\zeta(s))^{\frac{1}{2}})$.

Source : oai:HAL:hal-01109802v1

Volume: Volume 25

Published on: January 1, 2002

Submitted on: March 3, 2015

Keywords: asymptotic formula for the summatory function of the coefficients of generating functions, $\Omega$-theorems,kernel function,[MATH] Mathematics [math]

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