9 citations · 20 across the 19 of their papers we have counts for
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Refinement of the Classical Bohr Inequality
Saminathan Ponnusamy, Ramakrishnan Vijayakumar, Karl-Joachim Wirths
The classical inequality of Bohr asserts that if a power series converges in the unit disk and its sum has modulus less than or equal to , then the sum of absolute values of its…
Improved Bohr's phenomenon in quasi-subordination classes
Saminathan Ponnusamy, Ramakrishnan Vijayakumar, Karl-Joachim Wirths
Recently the present authors established refined versions of Bohr's inequality in the case of bounded analytic functions. In this article, we state and prove a generalization of th…
On classes of meromorphic locally univalent functions defined by differential inequalities
See Keong Lee, Saminathan Ponnusamy, Karl-Joachim Wirths
n this article we consider functions meromorphic in the unit disk. We give an elementary proof for a condition that is sufficient for the univalence of such functions which also co…
On the sum of squares of the coefficients of Bloch functions
I. R. Kayumov, K. -J. Wirths
In this article several types of inequalities for weighted sums of the moduli of Taylor coefficients for Bloch functions are proved
Inequalities for weighted sums of Mertens functions
R. Balasubramanian, S. Ponnusamy, K. -J. Wirths
In this article we derive some polynomial inequalities for Mertens functions.