Editing Logistic map (section)

===Robert May's research===
[[File:BobMayHarvard.jpg|thumb|Robert May (photographed in 2009)]]
Later, in the early 1970s, mathematical biologist Robert May encountered the model of equation (1–2) while working on an ecological problem. <!--[ 354 ]--> May introduced equation (1–2), i.e., the logistic map, by discretizing the logistic equation in time. <!--[ 355 ]--> He mathematically analyzed the behavior of the logistic map, and published his results in 1973 and 1974. <!--[ 356 ]--> Numerical experiments were performed on the logistic map to investigate the change in its behavior depending on the parameter {{mvar|r}}. <!--[ 357 ]-->

In 1976, he published a paper in ''Nature'' entitled "Simple mathematical models with very complicated dynamics". <!--[ 26 ]--> This paper was a review paper that focused on the logistic map and emphasized and drew attention to the fact that even simple nonlinear functions can produce extremely complex behaviors such as period-doubling bifurcation cascades and chaos. <!--[ 358 ]--> This paper in particular caused a great stir and was accepted by the scientific community due to May's status as a mathematical biologist, the clarity of his research results, and above all, the shocking content that a simple parabolic equation can produce surprisingly complex behavior. <!--[ 359 ]--> Through May's research, the logistic map attracted many researchers to chaos research and became such a famous mathematical model that it is said to have restarted the flow of chaos research. <!--[ 360 ]-->