Positive polynomials for ample vector bundles. Fulton, W. & Lazarsfeld, R. Ann. of Math. (2), 118(1):35–60, 1983.
Positive polynomials for ample vector bundles [link]Paper  doi  bibtex   
@Article{	  ful.laz:83,
  author	= {Fulton, William and Lazarsfeld, Robert},
  title		= {Positive polynomials for ample vector bundles},
  journal	= {Ann. of Math. (2)},
  fjournal	= {Annals of Mathematics. Second Series},
  volume	= {118},
  year		= {1983},
  number	= {1},
  pages		= {35--60},
  issn		= {0003-486X},
  doi		= {10.2307/2006953},
  url		= {http://dx.doi.org/10.2307/2006953}
}

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