The multiple-point schemes of a finite curvilinear map of codimension one. The source double-point cycle of a finite map of codimension one. Cohen-Macaulayness in graded algebras. Adjoints of ideals in regular local rings. Adjoints and polars of simple complete ideals in two-dimensional regular local rings.
Proximity inequalitites for complete ideals in two-dimensional regular local rings.
Regular differentials and equidimensional scheme-maps. Group-theoretic axioms for projective geometry.