Inequalities for Rational Functions
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Evsey Dyn'kin
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Article
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1997
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Elsevier Science
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English
โ 284 KB
A new hyperbolic area estimate for the level sets of finite Blaschke products is presented. The following inversion of the usual Sobolev embedding theorem is proved: Here r is a rational function of degree n with poles outside D. This estimate implies a new inverse theorem for rational approximati