Abel equation

The Abel equation, named after Niels Henrik Abel, is a type of functional equation which can be written in the form

f(h(x)) = h(x + 1)

or, equivalently,

\alpha(f(x))=\alpha(x)+1

and controls the iteration of $f$ .

单词	Abel equation
释义	Abel equation 英语百科 Abel equation The Abel equation, named after Niels Henrik Abel, is a type of functional equation which can be written in the form $f(h(x)) = h(x + 1)$ or, equivalently, $\alpha(f(x))=\alpha(x)+1$ and controls the iteration of $f$ .
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