They solve and research mathematical problems which can be applied in real life or completely abstract (pure).
This article covers notable mathematicians from Norway.
[2] German mathematician Felix Klein spoke of his reluctance "to part from this ideal type of researcher".
[4] Other notable mathematicians include (in alphabetical order) Carl Anton Bjerknes, Vilhelm Bjerknes, Bernt Michael Holmboe, who is known for being Abel's teacher and tutor,[5] Sophus Lie, Idun Reiten, Atle Selberg, Thoralf Skolem and Carl Størmer.
"Aa" appears under "å" as they are considered different representations of the same letter.