appell sequence

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|math}} Any [[polynomial]] sequence <math>\{p_n(x)\}_{n=0,1,2,\ldots}</math> satisfying the [[identity]] <math>\frac{d}{dx} p_n(x) = np_{n-1}(x),</math> and in which <math>p_0(x)</math> is a non-zero [[constant]].

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