Base-point-freeness of double-point divisors of smooth birational-divisors on conical rational scrolls

DOI10.1016/j.jalgebra.2018.01.014zbMath1397.14018OpenAlexW2793394723WikidataQ130089324 ScholiaQ130089324MaRDI QIDQ1644829

Atsushi Noma

Publication date: 22 June 2018

Published in: Journal of Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jalgebra.2018.01.014

zbMATH Keywords

linear systemdivisor of rational scrolldouble point divisor

Mathematics Subject Classification ID

Divisors, linear systems, invertible sheaves (14C20) Projective techniques in algebraic geometry (14N05)

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Cites Work

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• Surfaces containing a family of plane curves not forming a fibration
• Projective varieties with nonbirational linear projections and applications
• Generic inner projections of projective varieties and an application to the positivity of double point divisors
• Geometric properties of the double-point divisor
• What can be computed in algebraic geometry?