Source: wikibot/submersion-mathematics
= Submersion (mathematics)
{wiki=Submersion_(mathematics)}
In mathematics, particularly in the fields of topology and differential geometry, the term "submersion" refers to a specific type of smooth map between differentiable manifolds. A smooth map \\( f: M \\to N \\) is called a submersion at a point \\( p \\in M \\) if its differential \\( df_p: T_pM \\to T_\{f(p)\}N \\) is surjective.