Problems and progress: survey on fat points in P2

dc.creatorHarbourne, Brian
dc.date2001-01-12
dc.date.accessioned2026-07-07T04:39:39Z
dc.date.available2026-07-07T04:39:39Z
dc.descriptionThis paper surveys certain problems involving numerical characters for ideals I(Z) defining fat points subschemes $Z=m_1p_1+...+m_np_n$ for general points $p_i\in {\bf P}^2$. It also presents some new results, and includes a suite of MACAULAY 2 scripts for computing actual or conjectured values of (or bounds on) these characters. One such script, for example, is findres, which implements an algorithm due to Fitchett, Harbourne and Holay for computing the syzygy modules in a minimal free resolution of the ideal I(Z) for any such Z with n<=8; since findres does not rely on a Gröbner basis calculation, it is very fast and can handle very large multiplicities.
dc.description46 pages PlainTeX (includes 23 pages of Macaulay 2 scripts which can be copied and pasted directly into Macaulay)
dc.identifierhttps://arxiv.org/abs/math/0101112
dc.identifierhttp://arxiv.org/abs/math/0101112
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/60749
dc.subjectAlgebraic Geometry
dc.subjectCommutative Algebra
dc.subject14C99, 13P10
dc.titleProblems and progress: survey on fat points in P2
dc.typetext

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