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Creators/Authors contains: "Trefethen, Lloyd N."

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  1. An algorithm is presented to compute Zolotarev rational functions, that is, rational functions of a given degree that are as small as possible on one set E relative to their size on another set F (the third Zolotarev problem). Along the way we also approximate the sign function relative to E and F (the fourth Zolotarev problem). 
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    Free, publicly-accessible full text available August 31, 2026