An Okounkov body is a convex subset in Euclidean space associated to a big divisor on a smooth projective variety with respect to an admissible flag. In this paper, we introduce two convex bodies associated to pseudoeffective divisors, called the valuative Okounkov bodies and the limiting Okounkov bodies, and show that these convex bodies reflect the asymptotic properties of pseudoeffective divisors as in the case with big divisors. Our results extend the works of Lazarsfeld–Mustaţă and Kaveh–Khovanskii. For this purpose, we define and study special subvarieties, called the Nakayama subvarieties and the positive volume subvarieties, associated to pseudoeffective divisors.
|Number of pages||26|
|Journal||Journal of the London Mathematical Society|
|Publication status||Published - 2018 Apr|
Bibliographical noteFunding Information:
Received 18 August 2016; revised 5 July 2017; published online 8 February 2018. 2010 Mathematics Subject Classification 14C20 (primary), 52A20 (secondary). S. Choi and J. Park were partially supported by the NRF grant (NRF-2016R1C1B2011446). S. Choi was also supported in part by the Yonsei University Future-leading Research Initiative of 2017. J. Won was partially supported by IBS-R003-D1, Institute for Basic Science in Korea.
© 2018 London Mathematical Society
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