Results 31 to 40 of about 9,956,543 (298)
Isotropic positive definite functions on spheres
Journal of Functional Analysis, 2022 In this paper, we investigate the relationship between positive definite functions on the unit sphere $\sph$ and on the Euclidean space $\RR^d$. For the dimension $d$ to be odd, a new technique is developed to establish the inheritance of positive (semi-)definite property from $\RR^d$ to $\sph$ and the converse.
Han Feng, Yan Ge
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POSITIVE DEFINITE FUNCTIONS AND SHARP INEQUALITIES FOR PERIODIC FUNCTIONS
Ural Mathematical Journal, 2017 Let \(\varphi\) be a positive definite and continuous function on \(\mathbb{R}\), and let \(\mu\) be the corresponding Bochner measure. For fixed \(\varepsilon,\tau\in\mathbb{R}\), \(\varepsilon\ne 0\), we consider a linear operator \(A_{\varepsilon,\tau}
Viktor P. Zastavnyi
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The Sequential Generation of Gaussian Random Fields for Applications in the Geospatial Sciences
ISPRS International Journal of Geo-Information, 2014 This paper presents practical methods for the sequential generation or simulation of a Gaussian two-dimensional random field. The specific realizations typically correspond to geospatial errors or perturbations over a horizontal plane or grid. The errors
John Dolloff, Peter Doucette
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An Improved Sequential Quadratic Programming Method Based on Positive Constraint Sets
Chemical Engineering Transactions, 2020 SQP (sequential quadratic programming) is an effective method to solve nonlinear constraint problems, widely used in chemical process simulation optimization.
Li Xia +5 more
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IEEE Access, 2019 Time-varying disturbances not only exist in the external delay of Markovian jump system but also may exist in the transfer rate of internal probability transfer.
Liankun Sun, Nuo Xu
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Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200. Clinical presentations of FXTAS, including gait ataxia, kinetic tremor, cognitive decline, and rare Parkinsonism, are linked to ...
Flora Tassone +8 more
wiley +1 more source
Revstat Statistical Journal, 2013 This paper provides an accessible methodology for approximating the distribution of a general linear combination of non-central chi-square random variables. Attention is focused on the main application of the results, namely the distribution of positive
Hyung-Tae Ha
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Positive Definite Functions on Spheres
Duke Mathematical Journal, 1942 Not ...
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(De)accenting definite descriptions [PDF]
, 2013 This paper focuses on definite descriptions. It will be shown that a definite description refers to a given discourse referent if the descriptive content is completely deaccented.
Umbach, Carla
core
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller +14 more
wiley +1 more source