Period-two orbit
= Period-two orbit
{title2=$F(x)=y,\quad F(y)=x,\quad x\ne y$}
= Two-cycle
{synonym}
A <periodic orbit> of a map whose least period is two. Its two points are fixed by the second iterate but are not fixed by the original map.
= Period-two orbit
{title2=$F(x)=y,\quad F(y)=x,\quad x\ne y$}
= Two-cycle
{synonym}
A <periodic orbit> of a map whose least period is two. Its two points are fixed by the second iterate but are not fixed by the original map.