Evolution des modèles de calcul de dose pour la planification de ...
If we apply a quadratic Cremona transformation with fundamental points at the base points, the pencil is transformed to an Halphen pencil of ...
Moduli of Curves - Freet = max{k,1} = 1 for both pencils. Neverthless the two varieties are not isomorphic by proposition 3.3.20(i): for [1 1;;1] the singular part has dimension ... Evaluation des algorithmes de calcul de dose pour les faisceaux d ...These notes are based on courses given in the fall of 1992 at the University of Leiden and in the spring of 1993 at the. University of Grenoble. Classical Algebraic Geometry: a modern viewAbstract. We study the geometry and cohomology of Lefschetz pencils for semi- stable schemes over a discrete valuation ring.
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