Results 71 to 80 of about 251,836 (304)

Continued fractions which correspond to two series expansions and the strong Hamburger moment problem

open access: yes, 2012
Just as the denominator polynomials of a J-fraction are orthogonal polynomials with respect to some moment functional, the denominator polynomials of an M-fraction are shown to satisfy a skew orthogonality relation with respect to a stronger moment ...
Sri Ranga, A.
core  

Determinacy of a rational moment problem

open access: yes, 2001
We discuss a moment problem of Stieltjes type that is related to the theory of orthogonal rational functions. We obtain results which lead to a sufficient condition of Carleman type for determinacy of the moment ...
Hendriksen, E.   +11 more
core   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen   +11 more
wiley   +1 more source

Solution of the Stieltjes truncated matrix moment problem [PDF]

open access: yesOpuscula Mathematica, 2005
The truncated Stieltjes matrix moment problem consisting in the description of all matrix distributions \(\boldsymbol{\sigma}(t)\) on \([0,\infty)\) with given first \(2n+1\) power moments \((\mathbf{C}_j)_{n=0}^j\) is solved using known results on the ...
Vadim M. Adamyan, Igor M. Tkachenko
doaj  

On the Reduced Moment Problem

open access: yesThe Annals of Mathematical Statistics, 1954
For a special class of cumulative distribution functions which are solutions of a given reduced moment problem (cf. paragraph 3, pages 27 and 28, of [4]), the well known expression for the least upper bound of the absolute difference between any two solutions of the same reduced moment problem is improved upon by the introduction of a constant ...
openaire   +3 more sources

Relation between Exponential Moment Problem and Classical Moment Problem

open access: yesProceedings of the Bulgarian Academy of Sciences
The main result of the paper is an interesting relation between the solution of the truncated exponential moment problem and truncated classical moment problem, considered on the half-line or on a compact interval.
Kounchev, O., Render, H., Tsachev, Ts.
openaire   +2 more sources

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi   +8 more
wiley   +1 more source

Maximum Entropy and Moment Problems

open access: yesReal Analysis Exchange, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Efficient Frontier for Robust Higher-order Moment Portfolio Selection [PDF]

open access: yes
This article proposes a non-parametric portfolio selection criterion for the static asset allocation problem in a robust higher-moment framework. Adopting the Shortage Function approach, we generalize the multi-objective optimization technique in a four ...
Emmanuel Jurczenko   +2 more
core  

The Singular Bivariate Quartic Tracial Moment Problem

open access: yes, 2022
The (classical) truncated moment problem, extensively studied by Curto and Fialkow, asks to characterize when a finite sequence of real numbers indexes by words in commuting variables can be represented with moments of a positive Borel measure on ...
Bhardwaj, Abhishek, Zalar, Aljaž
core   +1 more source

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