38 citations
5 papers · 1 filter
Lagrangian subbundles of symplectic bundles over a curve
Insong Choe, George H. Hitching
A symplectic bundle over an algebraic curve has a natural invariant $\sLag$ determined by the maximal degree of its Lagrangian subbundles. This can be viewed as a generalization of…
Liaison invariants and the Hilbert scheme of codimension 2 subschemes in P^{n+2}
Jan O. Kleppe
In this paper we study the Hilbert scheme, Hilb(P), of equidimensional locally Cohen-Macaulay codimension 2 subschemes, with a special look to surfaces in P^4 and 3-folds in P^5, a…
Lie-Rinehart cohomology and integrable connections on modules of rank one
Eivind Eriksen, Trond Stølen Gustavsen
Let be an algebraically closed field of characteristic 0, let be a commutative -algebra, and let be a torsion free -module of rank one with a connection .…
Connections on modules over quasi-homogeneous plane curves
Eivind Eriksen
Let k be an algebraically closed field of characteristic 0, and let be a quasi-homogeneous plane curve. We show that for any graded torsion free A-module M, there…
Dimension of Families of Determinantal Schemes
Jan O. Kleppe, Rosa M. Miro-Roig
A scheme $X\subset \PP^{n+c}$ of codimension is called {\em standard determinantal} if its homogeneous saturated ideal can be generated by the maximal minors of a homogeneous $…