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In questo lavoro vengono presentati alcuni teoremi che mettono in relazione le proprietà di una curvaC con quelle di una sua generica sezione iperpiana Γ=CH. Di particolare interesse sono due teoremi in

. Il primo caratterizza la funzione di Hilbert di Γ quandoC è ridotta ed irriducible. Il secondo dà una condizione affinchè una curva diH contenente Γ si possa sollevare ad una superficie di

contenenteC. Vengono dedotte inoltre varie conseguenze di tali teoremi.

Summary

Some theorems relating the properties of a curveC with those of a generic hyperplane section Γ are stated. Of particular interest are two theorems in

. The first one characterizes the Hilbert function of Γ whenC is reduced and irreducible. The second one says that, if Γ is a complete intersection andC does not lie on a quadric, thenC is a complete intersection.

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Ricerca effettuata con fondi erogati dal M.P.I.

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Strano, R. Sulle sezioni iperpiane delle curve. Seminario Mat. e. Fis. di Milano 57, 125–134 (1987). https://doi.org/10.1007/BF02925046

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  • DOI: https://doi.org/10.1007/BF02925046

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