Columbia subject headings:
Geometric group theory.
Geometry, Differential.
Geometry, Projective.
Geometry--History.
Klein, Felix, 1849-1925.
Lie, Sophus, 1842-1899.
Transformation groups.
Harvard subject headings:
Geometric group theory.
Geometry, Differential.
Geometry, Projective.
Geometry--History
Klein, Felix, 1849-1925.
Lie groups.
Lie, Sophus, 1842-1899.
Mathematical physics
Transformation groups.
Princeton subject headings:
Geometric group theory.
Geometry, Differential.
Geometry, Projective.
Geometry--History.
Klein, Felix, 1849-1925.
Lie, Sophus, 1842-1899.
Transformation groups.