Abstract
We study the multigraded Hilbert function of general configurations of lines in multiprojective spaces. In several cases we prove that this multigraded Hilbert function is the expected one. We make conjectures about other configurations and for small genus curves with a prescribed multidegree.
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The author was partially supported by MIUR and GNSAGA of INdAM (Italy).
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Ballico, E. On the Multigraded Hilbert Function of Lines and Rational Curves in Multiprojective Spaces. Vietnam J. Math. 51, 435–449 (2023). https://doi.org/10.1007/s10013-021-00537-0
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DOI: https://doi.org/10.1007/s10013-021-00537-0
Keywords
- Segre varieties
- Multiprojective spaces
- Lines
- Hilbert function
- Multigraded Hilbert function
- Segre–Veronese varieties