The isomorphism problem for linear representations and their graphs Ghent University
A linear representation T-n(*)(K) of a point set K is a point-line geometry, embedded in a projective space PG (n + 1; q), where K is contained in a hyperplane. We put constraints on K which ensure that every automorphism of T-n(*)(K) is induced by a collineation of the ambient projective space. This allows us to show that, under certain conditions, two linear representations T-n(*)(K) and T-n(*)(K') are isomorphic if and only if the point sets ...