Results 31 to 40 of about 2,268,267 (281)

Moment Problems in Hereditary Function Spaces

open access: yesConcrete Operators, 2019
We introduce a concept of hereditary set of multi-indices, and consider vector spaces of functions generated by families associated to such sets of multi-indices, called hereditary function spaces.
Vasilescu Florian-Horia
doaj   +1 more source

Integral representations for harmonic and biharmonic functions in the unit ball (in Russian) [PDF]

open access: yesМатематичні Студії, 2013
In the paper an analytical solution of the analytic continuation problem in the unit N-dimensional ball by its values on the inner sphere is found. A generalization of the classical Poisson formula is obtained.
O. E. Yaremko
doaj  

How Difficult Was It? Metacognitive Judgments About Problems and Their Solutions After the Aha Moment

open access: yesFrontiers in Psychology, 2022
The insight phenomenon is thought to comprise two components: cognitive and affective (the Aha! experience). The exact nature of the Aha! experience remains unclear; however, several explanations have been put forward.
Nadezhda V. Moroshkina   +6 more
doaj   +1 more source

From asymptotics to spectral measures: determinate versus indeterminate moment problems [PDF]

open access: yes, 2005
In the field of orthogonal polynomials theory, the classical Markov theorem shows that for determinate moment problems the spectral measure is under control of the polynomials asymptotics.
Valent, Galliano
core   +5 more sources

THE QUARTIC MOMENT PROBLEM

open access: yesJournal of the Korean Mathematical Society, 2005
The authors consider the quartic moment problem suggested by \textit{R. E. Curto} and \textit{L. A. Fialkow} in [Mem. Am. Math. Soc. 568, 52 p. (1996; Zbl 0876.30033)]. Given complex numbers \(\gamma\equiv\gamma^{(4)}:\gamma_{00}, \gamma_{01}, \gamma_{10}, \gamma_{02}, \gamma_{11}, \gamma_{20}, \gamma_{03}, \gamma_{12}, \gamma_{21}, \gamma_{30 ...
Li, Chunji, Lee, Sang Hoon
openaire   +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.
openaire   +1 more source

Existence of Solutions for Linear Moment Problems [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2007
The Cimmino algorithm is an iterative projection method for finding almost common points of measur- able families of closed convex sets in a Hilbert space.
Dan Butnariu, Benzion Shklyar
doaj  

Metric of a Slow Rotating Body with Quadrupole Moment from the Erez-Rosen Metric [PDF]

open access: yes, 2015
A metric representing a slowly rotating object with quadrupole moment is obtained using a perturbation method to include rotation into the weak limit of the Erez-Rosen metric.
Cordero-García, Iván   +3 more
core   +1 more source

A Family of Heat Functions as Solutions of Indeterminate Moment Problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
We construct a family of functions satisfying the heat equation and show how they can be used to generate solutions to indeterminate moment problems. The following cases are considered: log-normal, generalized Stieltjes-Wigert, and q-Laguerre.
Ricardo Gómez, Marcos López-García
doaj   +1 more source

Moment problems for operator polynomials

open access: yes, 2012
We extend Haviland's theorem on the integral representation of positive linear functionals on usual (real multivariate) polynomials to the integral representation of positive linear maps on operator polynomials mapping into the space of operators.
Aljaž Zalar   +29 more
core   +1 more source

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