GENERIC QUADRIC SECTIONS OF IRREDUCIBLE BUCHSBAUM CURVES

We characterize all the sequences of integers which are the first diff erence of the Hilbert function of a generic quadric section of an irre ducible Buchsbaum curve in P-3. By some suitable examples we show that these classes of sequences are wider than the ones relative to ACM an d Buchsbaum maximal rank curves. (C) 1997 Elsevier Science B.V.