Extending a result of Khavinson and $\acute{S}wi\cedil{a}tek$ (2003) we show that the rational harmonic function $\overline {r(z)} - z$, where r(z) is a rational function of degree n > 1, has no more ...
This is a preview. Log in through your library . Abstract The currently available methods of finding the zeros of a vector function are quite effective but they do require a prior knowledge of the ...
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