Elementary Differential Topology
Submersion is a type of smooth map between differentiable manifolds where the differential of the map is surjective at every point in its domain. This means that for each point in the target manifold, there are points in the source manifold that are mapped to it, allowing for a rich structure in differential topology and the exploration of properties like regular values and smoothness.
congrats on reading the definition of Submersion. now let's actually learn it.