Title
Computing some fundamental numbers of the variety of nodal cubics in P3
Abstract
In this paper we obtain some fundamental numbers of the family U"n"o"d of non-degenerate nodal cubics in P^3 involving, in addition to the characteristic conditions, other fundamental conditions, as for example that the node lies on a plane. Some of these numbers were first obtained by Schubert in his Kalkul der abzahlenden Geometrie. In our approach we construct several compactifications of U"n"o"d, which can be obtained as a sequence of blow-ups of a suitable projective bundle K"n"o"d. We also provide geometric interpretations of the degenerations that appear as exceptional divisors. The computations have been carried out with the Wit system.
Year
DOI
Venue
2009
10.1016/j.jsc.2009.04.003
J. Symb. Comput.
Keywords
DocType
Volume
non-degenerate nodal cubics,fundamental condition,suitable projective bundle K,fundamental number,characteristic condition,Effective computational methods,geometric interpretation,family U,Intersection numbers,Kalkul der abzahlenden Geometrie,exceptional divisor,Wit system,Nodal cubics
Journal
44
Issue
ISSN
Citations 
10
Journal of Symbolic Computation
0
PageRank 
References 
Authors
0.34
1
4
Name
Order
Citations
PageRank
Josep M. Miret18114.88
Jordi Pujolàs2245.98
Kumar Saurav300.68
Sebastià Xambó-Descamps421.93