. . "charts of differential geometry" . . . . . . "differential geometric" . . . . "pulled back" . . . "gradient on the manifold" . . . . . "differential geometrical methods" . . "Differential Geometry" . . . . . . . . . . . . . . . "intrinsic" . . . "Complex differential geometry" . "Differential_geometry#History_of_development" . "differential geometer" . "extrinsic differential geometry" . . "Euclidean differential geometry" . . "Classical differential geometry" . . . "extrinsic" . . "differential geometers" . . "differentiable" . . . . . "geometric" . . . . . . . . "complex differential geometry" . . . . . . "Differential geometry of curves" . . . . . . "Differential_geometry#Applications" . . . . "geometry" . "differential" . . "Differential geometry" . . . . "Curves in differential geometry" . "global differential geometry" . "differential-geometric" . . "differential invariants" . . . . "geometer" . . "differential geometry" . . . "Differential geometric method" . . . "Differential geometry" . . . . .