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Hankel and sub-Hankel determinants ( a detailed study of their polar ideals)
(Universidade Federal de Pernambuco, 2015)
Perturbations on the antidiagonals of Hankel matrices
(2013-08-12)
Given a strongly regular Hankel matrix, and its associated sequence of moments which defines a quasi-definite moment linear functional, we study the perturbation of a fixed moment, i.e., a perturbation of one antidiagonal ...
Perturbations on the antidiagonals of Hankel matrices
(2013-08-12)
Given a strongly regular Hankel matrix, and its associated sequence of moments which defines a quasi-definite moment linear functional, we study the perturbation of a fixed moment, i.e., a perturbation of one antidiagonal ...
On a moment problem associated with Chebyshev polynomials
(Elsevier B.V., 2012-05-15)
Given a sequence {mu(n)}(n-0)(infinity) of real numbers, we find necessary and sufficient conditions for the existence and uniqueness of a distribution function phi on (1, infinity), such thatmu(n) = integral(infinity)(1) ...
On a moment problem associated with Chebyshev polynomials
(Elsevier B.V., 2012-05-15)
Given a sequence {mu(n)}(n-0)(infinity) of real numbers, we find necessary and sufficient conditions for the existence and uniqueness of a distribution function phi on (1, infinity), such thatmu(n) = integral(infinity)(1) ...
Subresultants in multiple roots: An extremal case
(Elsevier Science Inc, 2017-09)
We provide explicit formulae for the coefficients of the order-d polynomial subresultant of (x−α)m and (x−β)n with respect to the set of Bernstein polynomials {(x−α)j(x−β)d−j,0≤j≤d}. They are given by hypergeometric ...
On a moment problem associated with Chebyshev polynomials
(Elsevier B.V., 2014)