Defect of projective hypersurfaces with isolated singularities

This article title suggests a highly specialized mathematical research paper. The subject matter is likely complex and aimed at a niche audience within algebraic geometry. The term "defect" in this context probably refers to a specific mathematical property or invariant related to the singularities of the hypersurfaces. The use of "ArXiv" as the source indicates that this is a pre-print, meaning it has not yet undergone peer review in a formal journal.