Results 51 to 60 of about 808,716 (283)
Multidimensional negative definite functions on the product of commutative hypergroups
Kuwait Journal of Science, 2016 The main aim of this paper is to give the integral representations for the so called multidimensional negative definite functions defined on the product of commutative hypergroups.
Hossam A Ghany
doaj
Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review
Advanced Healthcare Materials, EarlyView.Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro +8 more
wiley +1 more source
Stahl's Theorem (aka BMV Conjecture): Insights and Intuition on its Proof
, 2017 The Bessis-Moussa-Villani conjecture states that the trace of $\exp(A-tB)$ is, as a function of the real variable $t$, the Laplace transform of a positive measure, where $A$ and $B$ are respectively a hermitian and positive semi-definite matrix. The long
Clivaz, Fabien
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Advanced Materials, EarlyView.AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll +19 more
wiley +1 more source
Positive Definite Functions on Spheres
Duke Mathematical Journal, 1942 Not ...
openaire +3 more sources
Strictly Positive Definite Functions on Spheres [PDF]
Proceedings of the American Mathematical Society, 1992 A sufficient condition is given for the strict positive-definiteness of a real, continuous function on the m m -dimensional sphere.
Xu, Yuan, Cheney, E. W.
openaire +2 more sources
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
International Journal of Mathematics and Mathematical Sciences, 2002 We prove, for two free semicircularly distributed selfadjoint elements a and b in a type II1 von Neumann algebra with faithful trace τ, that the function t∈ℝ↦τ(exp(a+itb)) is positive definite.
Mark Fannes, Dénes Petz
doaj +1 more source
Non-positivity of the Wigner function and bounds on associated integrals
, 2003 The Wigner function shares several properties with classical distribution functions on phase space, but is not positive-definite. The integral of the Wigner function over a given region of phase space can therefore lie outside the interval [0,1].
Bracken, A. J., Ellinas, D., Wood, J. G.
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Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field
Advanced Robotics Research, EarlyView.This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao +3 more
wiley +1 more source