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Faber polynomials

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In mathematics, the Faber polynomials Pm of a Laurent series

f ( z ) = z 1 + a 0 + a 1 z + {\displaystyle \displaystyle f(z)=z^{-1}+a_{0}+a_{1}z+\cdots }

are the polynomials such that

P m ( f ) z m {\displaystyle \displaystyle P_{m}(f)-z^{-m}}

vanishes at z=0. They were introduced by Faber (1903, 1919) and studied by Grunsky (1939) and Schur (1945).

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