2 citations · 2 across the 3 of their papers we have counts for
4 papers · 1 filter
On linear systems with multiple points on a rational normal curve
Antonio Laface, Elisa Postinghel, Luis José Santana Sánchez
We give a closed formula for the dimension of all linear systems in with assigned multiplicity at arbitrary collections of points lying on a rational normal curve of…
On Strassen's rank additivity for small three-way tensors
Jarosław Buczyński, Elisa Postinghel, Filip Rupniewski
We address the problem of the additivity of the tensor rank. That is for two independent tensors we study if the rank of their direct sum is equal to the sum of their individual ra…
Secant varieties of Segre-Veronese embeddings of (P^1)^r
Antonio Laface, Elisa Postinghel
We use a double degeneration technique to calculate the dimension of the secant variety of any Segre-Veronese embedding of (P^1)^r
Secant Degree of Toric Surfaces and Delightful Planar Toric Degenerations
Elisa Postinghel
The -secant degree is studied with a combinatorial approach. A planar toric degeneration of any projective toric surface corresponds to a regular unimodular triangulation $D…