Multipoint Seshadri constants on P^2

B. Harbourne, J. Roé

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)


Working over C and formalizing and sharpening approaches introduced in [12], [9] and [8], we give a method for verifying when a divisor on a blow up of ℙ2 at general points is nef. The method is useful both theoretically and when doing computer computations. The main application is to obtaining lower bounds on multipoint Seshadri constants on ℙ2. In combination with methods developed in [4], significantly improved explicit lower bounds are obtained.
Original languageEnglish
Pages (from-to)99-102
JournalRendiconti del seminario matematico (Torino)
Issue number1
Publication statusPublished - 1 Dec 2005


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