Symbolic powers of ideals of generic points in P^3

Details Symbolic powers of ideals of generic points in P^3 Symbolic powers of ideals of generic points in P^3

2011-05-02

arxiv.org/abs/1105.0258v1

Mathematics

Algebraic Geometry

Scientific paper

B. Harbourne and C. Huneke conjectured that for any ideal $I$ of fat points in $P^N$ its $r$-th symbolic power $I^{(r)}$ should be contained in $M^{(N-1)r}I^r$, where $M$ denotes the homogeneous maximal ideal in the ring of coordinates of $P^N$. We show that this conjecture holds for the ideal of any number of simple (not fat) points in general position in $P^3$ and for at most $N+1$ simple points in general position in $P^N$. As a corollary we give a positive answer to Chudnovsky Conjecture in the case of generic points in $P^3$.

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