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Isomorphism Invariants for Projective Configurations

Open Access article
 Printed: Dec 1999
  • G. C. Shephard
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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.
MSC Classifications: 51N15 show english descriptions Projective analytic geometry 51N15 - Projective analytic geometry

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