For the recursion y_{n+1}=(1-y_n)^p with p a positive integer, real solutions are either asymptotically 2-periodic between 0 and 1 or diverge, depending on the initial value.
Interesting system of $3$ first-order recursions
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abstract
In this paper we firstly review how to \textit{explicitly} solve a system of $3$ \textit{first-order linear recursions }and outline the main properties of these solutions. Next, via a change of variables, we identify a class of systems of $3$ \textit{first-order nonlinear recursions} which also are \textit{explicitly solvable}. These systems might be of interest for practitioners in \textit{applied} sciences: they allow a complete display of their solutions, which may feature interesting behaviors, for instance be \textit{completely periodic} ("isochronous systems", if the independent variable $n=0,1,2,3...$is considered a \textit{ticking time}), or feature this property \textit{only asymptotically} (as\textit{\ }$n\rightarrow \infty $).
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Some properties of the simple nonlinear recursion $y(\ell + 1) = [1-y(\ell)]^p$ with $p$ an arbitrary positive integer
For the recursion y_{n+1}=(1-y_n)^p with p a positive integer, real solutions are either asymptotically 2-periodic between 0 and 1 or diverge, depending on the initial value.