Hirokazu Nasu,
RIMS, Kyoto University.

Title: Non-reduced irreducible components
       of the Hilbert scheme of curves in P^3

Abstract: We study locally Cohen-Macaulay curves in P^3 for the study 
          of the Hilbert scheme of smooth connected curves. 
          As a result, we show the non-reducedness of some irreducible
          components of the Hilbert scheme.