51XX 


Geometry {For algebraic geometry, see 14XX} 

51Nxx 

Analytic and descriptive geometry 


51N05 
Descriptive geometry [See also 65D17, 68U07] 


51N10 
Affine analytic geometry 


51N15 
Projective analytic geometry 


51N20 
Euclidean analytic geometry 


51N25 
Analytic geometry with other transformation groups 


51N30 
Geometry of classical groups [See also 20Gxx, 14L35] 


51N35 
Questions of classical algebraic geometry [See also 14Nxx] 


51N99 
None of the above, but in this section 