Results 91 to 100 of about 5,889,360 (355)
Positive Definite Functions on Spheres
Duke Mathematical Journal, 1942 Not ...
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On some positive definite functions [PDF]
Positivity, 2015 We study the function $(1 - \|x\|)\slash (1 - \|x\|^r),$ and its reciprocal, on the Euclidean space $\mathbb{R}^n,$ with respect to properties like being positive definite, conditionally positive definite, and infinitely divisible.
Rajendra Bhatia +2 more
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Diffusion‐Weighted Imaging for the Evaluation of the Sacroiliac Joint in Pediatric Patients
Arthritis Care &Research, Accepted Article.Background Maturational signal in the sacroiliac joint (SIJ) of skeletally immature youth is often misinterpreted as inflammation. Diagnostic tools that improve specificity are greatly needed. Apparent diffusion coefficient (ADC) values from diffusion‐weighted imaging (DWI), when used with standard imaging, may enhance diagnostic accuracy.
Michael L. Francavilla +6 more
wiley +1 more source
Sage–Husa Algorithm Based on Adaptive Double Forgetting Factors
Applied SciencesIn order to address the issues of insufficient filtering accuracy and filtering divergence that have been observed in the Sage–Husa algorithm when applied to nonlinear system state estimation, an adaptive double forgetting factor-based Sage–Husa ...
Wenjuan Li, Mingjing Zhan, Hui Feng
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有关矩阵广义逆的惯性指数及其应用(Inertia formulae related to the generalized inverse with applications)
Zhejiang Daxue xuebao. Lixue ban, 2019 In this paper, firstly, we establish the inertia formulae for some matrix expressions related to the generalized inverse . Then, as applications, based on the derived inertia formulae, we study the definiteness of some matrices.
WUZhongcheng(吴中成) +1 more
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Karpatsʹkì Matematičnì Publìkacìï, 2013 The relaxation parameters values to definite sequential upper relaxation block method convergence optimal velocity have been determined for the Dirichlet's problem in two-dimensional rectangle spatial region, the iteration procedure convergence and ...
A. P. Oliynyk, L. O. Shtayer
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On positive definite quadratic polynomials [PDF]
Acta Arithmetica, 1986 By a well-known theorem of Davenport, Birch and Ridout, an indefinite quadratic form in 21 or more variables assumes arbitrarily small values, when the variables run over integers. An analogous result for positive definite quadratic forms considered by \textit{H. Davenport} and \textit{D. J. Lewis} [Acta Arith.
S. Raghavan, R. J. Cook
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A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
Една можна класификација на експонентите на неопределеноста во македонскиот јазик
Slavia Meridionalis, 2018 A possible classification of indefiniteness exponents in Macedonian The concept or category of determinateness finds its grammaticalization in the category of definiteness.
Бобан [Boban] Карапејовски [Karapejovski]
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Data‐Driven Distributed Safe Control Design for Multi‐Agent Systems
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper presents a data‐driven control barrier function (CBF) technique for ensuring safe control of multi‐agent systems (MASs) with uncertain linear dynamics. A data‐driven quadratic programming (QP) optimization is first developed for CBF‐based safe control of single‐agent systems using a nonlinear controller. This approach is then extended to the
Marjan Khaledi, Bahare Kiumarsi
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