4 citations · 12 across the 12 of their papers we have counts for
7 papers · 1 filter
On a construction method of new moment sequences
Seunghwan Baek, Hayoung Choi, Seonguk Yoo
In this paper we provide a way to construct new moment sequences from a given moment sequence. An operator based on multivariate positive polynomials is applied to get the new mome…
Any multi-index sequence has an interpolating measure
Hayoung Choi, Seonguk Yoo
R. P. Boas showed that any single-index sequence of real numbers can be represented as (), where…
Geometric Mean of Partial Positive Definite Matrices with Missing Entries
Hayoung Choi, Sejong Kim, Yuanming Shi
In this paper the geometric mean of partial positive definite matrices with missing entries is considered. The weighted geometric mean of two sets of positive matrices is defined,…
Sparse Hamburger Moment Sequences and Completions in Several Variables
Saroj Aryal, Hayoung Choi, Farhad Jafari
Putinar and Vasilescu have given an algebraic characterization of Hamburger moment sequences in several variables. In this paper we give a characterization of sparse moment subsequ…
Hamburger moment sequences and their moment subsequences
Saroj Aryal, Hayoung Choi, Farhad Jafari
In this paper a connection between Hamburger moment sequences and their moment subsequences is given and the determinacy of these problems are related.
Modified Radon transform inversion using moments in
Hayoung Choi, Farhad Jafari, Robert Mnatsakanov
A modified Radon transform for noisy data is introduced and its inversion formula is established. The problem of recovering the multivariate probability density function from t…
Positive definite Hankel matrix completions and Hamburger moment completions
Hayoung Choi, Farhad Jafari
In this paper we give solutions to Hamburger moment problems with missing entries. The problem of completing partial positive sequences is considered. The main result is a characte…