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Hadamard Products of Projective Varieties with Errors and Erasures
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DOI：10.3390/appliedmath6020031.png)
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Abstract
En 中文
In Algebraic Statistics, M.A. Cueto, J. Morton and B. Sturmfels introduced a statistical model, the Restricted Boltzmann Machine, which introduced the Hadamard product of two or more vectors of an affine or projective space, i.e., the componentwise product of their entries, forcing Algebraic Geometry to enter. The Hadamard product X star Y of two subvarieties X,Y subset of Pn is defined as the Zariski closure of the Hadamard product of its elements. Recently, D. Antolini and A. Oneto introduced and studied the definition of Hadamard rank, and we prove some results on it. Moreover, we prove some theorems on the dimension and shape of the Hadamard powers of X. The aim is to describe the images of the Hadamard products without taking the Zariski closure. We also discuss several scenarios describing the case in which some of the data, i.e., the variety X, is wrong or it is not possible to recover it.
Keywords:
Hadamard product
Hadamard rank
Hadamard secant varieties
erasure
Journal
A
IF:
0.7
Papers:
111
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