We prove a base point freeness result for linear systems of forms vanishing at general double points of the projective plane. For tensors we study the uniqueness problem for the representation of a tensor as a sum of terms corresponding to points and tangent vectors of the Segre variety associated with the format of the tensor. We give complete results for unions of one point and one tangent vector.
Base point freeness, uniqueness of decompositions and double points for Veronese and Segre varieties / Ballico, Edoardo. - In: SYMMETRY. - ISSN 2073-8994. - ELETTRONICO. - 13:12(2021), pp. 234401-234418. [10.3390/sym13122344]
Base point freeness, uniqueness of decompositions and double points for Veronese and Segre varieties
Edoardo Ballico
2021-01-01
Abstract
We prove a base point freeness result for linear systems of forms vanishing at general double points of the projective plane. For tensors we study the uniqueness problem for the representation of a tensor as a sum of terms corresponding to points and tangent vectors of the Segre variety associated with the format of the tensor. We give complete results for unions of one point and one tangent vector.File in questo prodotto:
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