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20132019
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307 citations · 338 across the 9 of their papers we have counts for

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math.CA2019

Gorin's problem for individual simple partial fractions

Petr Chunaev, Vladimir Danchenko

The main result of the paper is a lower estimate for the moduli of imaginary parts of the poles of a simple partial fraction (i.e. the logarithmic derivative of an algebraic polyno…

math.CA2019

Interpolation by generalized exponential sums with equal weights

Petr Chunaev

Here we solve Padé and Prony interpolation problems for the generalized exponential sums with equal weights: $$H_n(z; h)=\fracμ{n}\sum_{k=1}^n h(λ_k z),\quad \text{where}\quad μ,λ_…