Sophus Lie

Marius Sophus Lie ( ; ; 17 December 1842 – 18 February 1899) was a Norwegian mathematician. He largely created the theory of continuous symmetry and applied it to the study of geometry and differential equations. Provided by Wikipedia

1
by Lie, Sophus
Published 2015
Springer Berlin Heidelberg

2
by Lie, Sophus, Study, Eduard, Engel, Friedrich
Published 1993
Vieweg+Teubner Verlag