A Characterization of Two Classes of Semi Partial Geometries by Their Parameters

摘要

Semipartial geometries were characterized by their parameters mu and alpha. Two classes of semipartial geometries are considered, one with mu = alpha squared and one with mu = alfa x (alfa + 1). Theorems and lemmas are proved for each geometry. It is shown that, under mild restrictions on the parameters, these two geometries are determined by their parameters.