This work may be compared with Poincaré 's work on circle diffeomorphisms, which 100 years before had inaugurated the qualitative theory of dynamical systems. Milnor's work has opened several new directions in this field, and has given us many basic concepts, challenging problems and nice theorems.
Ang trabaho ay maaaring kumpara sa Poincaré 's trabaho sa bilog diffeomorphisms, na 100 mga taon bago had inaugurated ang husay teorya ng dynamical system. Milnor ng trabaho ay binuksan ng ilang mga bagong direksyon sa larangan na ito, at ito ay ibinigay sa amin ng maraming mga basic concepts, mahirap na problema at magandang theorems.