Elementar-symmetrische Polynome/Definition

Elementarsymmetrisches Polynom

Das ${}i$ -te elementarsymmetrische Polynom in ${}n$ Variablen ist das Polynom (mit $i=1,\ldots ,n$ )

{}E_{i}:=\sum _{1\leq k_{1}<\ldots <k_{i}\leq n}X_{k_{1}}\cdots X_{k_{i}}\,.

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