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on the algebraization/continuation of analytic subvarieties of projective spaces. Non-dicritical codimension one foliations on projective spaces of dimension four or higher always have an invariant algebraic hypersurface ...
Mathematische Math. Z. 188, 143-147 (1985) Zeitschrift 9 Springer-Verlag 1985 Codimension - two Subvarieties of IW with the Cohomology of a Complete Intersection Tim Sauer Department of Mathematics ...
of Delzant and Gromov on subvarieties of products of Riemann surfaces in the smooth codimension one case. We also answer Delzant and Gromov's question of which subgroups of a direct product of surface groups ...
codimension , e.g. hypersurfaces ? 2. Does a similar statement hold in the holomorphic category? 3. Assume that $ is a subvariety such that every single automorphism of Z extends to $. Does this imply ...
algebra N of finite dimension over an arbitrary base field of characteristic zero a smooth algebraic subvariety S ⊂ N can be associated in a canonical way whose degree is the nil-index and whose codimension ...
in (generalizing a result by Schanuel). We give then some applications: we estimate the number of hyperplanes and hypersurfaces of degree d>1 in of bounded height and containing a fixed linear subvariety and we ...
field. The notion of liaison among subvarieties of IP" was introduced in [3]. We will consider here liaison in codimension two , generalizing results in [4]. Recall, therefore, that two subschemes V 1, V 2 ...
. Introduction. A smooth irreducible subvariety X 7 P of codimension two , which is not a complete intersection, is said to be a quasi complete intersection (qci for short) if it is the scheme theoretic ...
1 2. General background 6 3. Establishing codimension - two criteria in general 7 4. Moment calculations 9 5. Establishing near-optimal criteria in special cases 10 Appendix A. Background ...
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