A classification of locally homogeneous connections on 2-dimensional manifolds
In this very interesting paper, the author classifies (in appropriate coordinate systems) all torsion-free locally homogeneous connections on 2-dimensional manifolds: Levi-Civita connections of metrics with constant curvature; connections with constant coefficients; connections of a special type, with a kind of asymptotic flatness of the coefficients.
scientific article; zbMATH DE number 2091335