Sharp Markov-type Inequalities for Rational Functions on Several   Intervals
  In this paper, we give sharp Rusak- and Markov-type inequalities for rational functions on several intervals when the system of intervals is a \textquotedblleft rational function inverse image\textquotedblright\, of an interval and those functions are large in gaps. 
M. A. Akturk, A. Lukashov
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