Results 11 to 20 of about 251,836 (304)

On the truncated operator trigonometric moment problem

open access: yesConcrete Operators, 2015
In this paper we study the truncated operator trigonometric moment problem. All solutions of the moment problem are described by a Nevanlinna-type parameterization.
Zagorodnyuk Sergey
doaj   +2 more sources

The Hausdorff Moment Problem [PDF]

open access: yesCanadian Mathematical Bulletin, 1978
Suppose throughout thatand that {μn}(n≥ 0) is a sequence of real numbers. The (generalized) Hausdorff moment problem is to determine necessary and sufficient conditions for there to be a function x in some specified class satisfying.
David Borwein
openaire   +2 more sources

On the moment problem

open access: yes, 2002
The moment problem concerns the question whether or not a probability distribution or random variable is uniquely determined by the sequence of moments, all of which are supposed to exist. The purpose of this paper is to provide some additional insight into the moment problem by connecting a condition by Lin, Bondesson's class of hyperbolically ...
Wu, Chia-Linn
openaire   +3 more sources

Consistent tests of conditional moment restrictions [PDF]

open access: yes, 2006
We propose two classes of consistent tests in parametric econometric models defined through multiple conditional moment restrictions. The first type of tests relies on nonparametric estimation, while the second relies on a functional of a marked ...
Domínguez, Manuel A.   +2 more
core   +1 more source

On bounded complex Jacobi matrices and related moment problems in the complex plane [PDF]

open access: yesSurveys in Mathematics and its Applications, 2023
In this paper we consider the following moment problem: find a positive Borel measure μ on ℂ subject to conditions ∫ zn dμ = sn, n∈ℤ+, where sn are prescribed complex numbers (moments).
Sergey M. Zagorodnyuk
doaj  

Gravity as an ensemble and the moment problem

open access: yesJournal of High Energy Physics, 2021
If a bulk gravitational path integral can be identified with an average of partition functions over an ensemble of boundary quantum theories, then a corresponding moment problem can be solved. We review existence and uniqueness criteria for the Stieltjes
Oliver Janssen   +2 more
doaj   +1 more source

The Phase Transition Analysis for Random Regular Exact (s, c, k)—SAT Problem

open access: yesIEEE Access, 2021
The length of each clause in a regular $(s, c, k)-CNF$ formula is $k$ . Each argument occurrences $s$ times, among them, positive occurrences $(c * s)$ times and negative occurrences $(s-c*s)$ times, where $0 < c < 1$ . A regular exact $(
Xiaoling Mo, Daoyun Xu, Xi Wang
doaj   +1 more source

On unbounded commuting Jacobi operators and some related issues

open access: yesConcrete Operators, 2019
We consider the situations, when two unbounded operators generated by infinite Jacobi matrices, are self-adjoint and commute. It is found that if two Jacobi matrices formally commute, then two corresponding operators are either self-adjoint and commute ...
Osipov Andrey
doaj   +1 more source

A Maximum Entropy Approach to the Realizability of Spin Correlation Matrices

open access: yesEntropy, 2013
Deriving the form of the optimal solution of a maximum entropy problem, we obtain an infinite family of linear inequalities characterizing the polytope of spin correlation matrices.
Michele Pavon   +2 more
doaj   +1 more source

On certain non-unique solutions of the Stieltjes moment problem [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2010
We construct explicit solutions of a number of Stieltjes moment problems based on moments of the form ${\rho}_{1}^{(r)}(n)=(2rn)!$ and ${\rho}_{2}^{(r)}(n)=[(rn)!]^{2}$, $r=1,2,\dots$, $n=0,1,2,\dots$, \textit{i.e.} we find functions $W^{(r)}_{1,2}(x)>0$
K. A. Penson   +4 more
doaj   +1 more source

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