4 citations · 13 across the 4 of their papers we have counts for
5 papers
Interpolation for completely positive maps: numerical solutions
Calin-Grigore Ambrozie, Aurelian Gheondea
We present certain techniques to find completely positive maps between matrix algebras that take prescribed values on given data. To this aim we describe a semidefinite programming…
An Interpolation Problem for Completely Positive Maps on Matrix Algebras: Solvability and Parametrisation
Calin-Grigore Ambrozie, Aurelian Gheondea
We present certain existence criteria and parameterisations for an interpolation problem for completely positive maps that take given matrices from a finite set into prescribed mat…
On a variational approach to truncated problems of moments
Calin-Grigore Ambrozie
We characterize the existence of the solutions of the truncated moments problem in several real variables on unbounded supports by the existence of the maximum of certain con…
Multivariate truncated moments problems and maximum entropy
Calin-Grigore Ambrozie
We characterize the existence of the Lebesgue integrable solutions of the truncated problem of moments in several variables on unbounded supports by the existence of some maximum e…
A Riesz-Haviland type result for truncated moment problems with solutions in
Calin-Grigore Ambrozie
We give a version of the Riesz-Haviland theorem for truncated moments problems, characterizing the existence of the representing measures that are absolutely continuous with respec…