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Inequalities pertaining to rational functions with prescribed poles
Nisar Ahmad Rather, Mohmmad Shafi Wani, Ishfaq Dar University of Kashmir
Abstract:
Let $\Re_n$ be the set of all rational functions of the type $r(z) = p(z)/w(z),$ where $p(z)$ is a polynomial of degree at most $n$ and $w(z) = \prod_{j=1}^{n}(z-a_j)$, $|a_j|>1$ for $1\leq j\leq n$. In this paper, we set up some results for rational functions with fixed poles and restricted zeros. The obtained results bring forth generalizations and refinements of some known inequalities for rational functions and in turn produce generalizations and refinements of some polynomial inequalities as well.
Keywords:
rational functions, polynomials, inequalities.
Citation:
Nisar Ahmad Rather, Mohmmad Shafi Wani, Ishfaq Dar, “Inequalities pertaining to rational functions with prescribed poles”, Ural Math. J., 8:2 (2022), 143–152
Linking options:
https://www.mathnet.ru/eng/umj179 https://www.mathnet.ru/eng/umj/v8/i2/p143
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