Results 41 to 50 of about 7,423,787 (281)

The inverse eigenvalue problem for a Hermitian reflexive matrix and the optimization problem [PDF]

, 2016
The inverse eigenvalue problem and the associated optimal approximation problem for Hermitian reflexive matrices with respect to a normal {k+1}-potent matrix are considered.
Thome, Néstor, Lebtahi Ep-Kadi-Hahifi, Leila, L. Lebtahi, N. Thome, Lebtahi, Leila, S. Gigola, Gigola, Silvia Viviana, Lebtabi, Leila, Gigola, Silvia, Lebtabi, Leila (1)   +9 more
core   +1 more source

Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning

Advanced Intelligent Discovery, EarlyView.
This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley   +1 more source

On a fine localization of the Mathieu azimuthal numbers by Cassini ovals

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The study is devoted to numerical and analytical problems concerning generating periodic and antiperiodic solutions of the angular (circumferential) Mathieu equation obtained for the circumferential harmonics of an elliptic cylinder.
Yuri Nikolaevich Radayev, Margarita Vladimirovna Taranova   +1 more
doaj   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

Sound‐Based Assembly of Magnetically Actuated Soft Robots Toward Enhanced Release of Extracellular Vesicles

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Magnetic soft robots offer promise in biomedicine due to their wireless actuation and rapid response, but current fabrication methods are complex and have limited cellular compatibility. A new, contactless bioassembly strategy using hydrodynamic instabilities is introduced, enabling customizable, centimeter‐scale robots.
Wei Gao, Riccardo Tognato, Micaela Natta, Elena Della Bella, Alessandro Cianciosi, Tiziano Serra   +5 more
wiley   +1 more source

Inverse eigenvalue problems for composite banded tridiagonal matrices: symmetric and nonsymmetric cases [PDF]

Iranian Journal of Numerical Analysis and Optimization
We study an inverse eigenvalue problem associated with a special class of structured matrices in both symmetric and nonsymmetric forms. In the symmetric case, the problem involves two sets of eigenpairs corresponding to the original matrix and its ...
Maryam Babaei Zarch
doaj   +1 more source

Public Attitudes Toward Compassionate Release of Older People From Prison: Findings From a National Survey in Australia

Australian Journal of Social Issues, EarlyView.
ABSTRACT The rapid increase in older people in prison populations worldwide is generating significant health, cost, and human rights pressures on custodial systems. Compassionate release for older, frail inmates is a potentially effective response, yet little is known about public support for this approach.
Ye In (Jane) Hwang, Natasha Ginnivan, Amanuel Kidane Hagos, Tony Butler   +3 more
wiley   +1 more source

Topology uniformity pinning control for multi-agent flocking

Complex & Intelligent Systems, 2023
The optimal selection of pinning nodes for multi-agent flocking is a challenging NP-hard problem. Current pinning node selection strategies mainly rely on centrality measures of complex networks, which lack rigorous mathematical proof for effective ...
Jintao Liu, Zhonghong Wu, Qiao Xin, Minggang Yu, Lianlian Liu   +4 more
doaj   +1 more source

Humans and platyrrhines share a pattern of articular variance

The Anatomical Record, EarlyView.
Abstract Previous work has identified a pattern of articular shape variation in modern human limb joints, in which convex joint surfaces exhibit constrained variance relative to their more variable concave conarticulars. This pattern is notable given that joint morphogenesis is influenced by local biomechanical environments, which vary substantially ...
Haley Horbaly, Liam Zachary
wiley   +1 more source

A polynomial eigenvalue approach for multiplex networks

New Journal of Physics, 2018
We explore the block nature of the matrix representation of multiplex networks, introducing a new formalism to deal with its spectral properties as a function of the inter-layer coupling parameter.
Guilherme Ferraz de Arruda, Emanuele Cozzo, Francisco A Rodrigues, Yamir Moreno   +3 more
doaj   +1 more source