Distribution of the logarithmic derivative of a rational function on the line
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DOI: 10.1007/s10474-020-01102-w
Abstract: We prove that for an arbitrary real rational function r of degree n , a measure of the set $$\{x\in \mathbb{R}: |r'(x)/r(x)|\ge n\}$$ { x ∈ R : | r ′ ( x ) /… read more here.
Keywords: line; logarithmic derivative; derivative rational; function ... See more keywords