Geodesic
Isomorphism Invariants for Projective Configurations
Canadian journal of mathematics, Tome 51 (1999) no. 6, pp. 1277-1299

Voir la notice de l'article provenant de la source Cambridge University Press

An isomorphism invariant is an expression, defined for a configuration in the projective plane, which takes the same value for all isomorphic configurations. Examples are given as well as a general method (Nehring sequences) for constructing such invariants.
DOI : 10.4153/CJM-1999-058-8
Mots-clés : 51N15 
Shephard, G. C. Isomorphism Invariants for Projective Configurations. Canadian journal of mathematics, Tome 51 (1999) no. 6, pp. 1277-1299. doi: 10.4153/CJM-1999-058-8
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