Results 201 to 210 of about 2,551 (262)

A Geometric Characterization of Steady Laminar Flow

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the steady states of the Euler equations on the periodic channel or annulus. We show that if these flows are laminar (layered by closed non‐contractible streamlines which foliate the domain), then they must be either parallel or circular flows.
Theodore D. Drivas, Marc Nualart
wiley   +1 more source

Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous, Cédric Gerbelot, Vanessa Piccolo   +2 more
wiley   +1 more source

On the solution for a nonlinear wave equation with variable exponent nonlinearity and a varying delay. [PDF]

Sci Rep
Benguessoum A, Bensaid M, Boulaaras S, Souid MS.   +3 more
europepmc   +1 more source

“Efforts to Surface the Unspoken”: A Mixed Methods Study of a Risk‐Informed Check‐In in Norwegian Family Mediation

Conflict Resolution Quarterly, EarlyView.
ABSTRACT In family mediation, emotional discomfort and perceived unsafety may signal deeper relational risks, including postseparation violence. Standard intake procedures in Norwegian family mediation depend on disclosure to a nonclinical administrator before any therapeutic relationship exists, and research documents systematic under‐reporting at ...
Jan Stokkebekk, Trine Eikrem, Kristoffer Whittaker   +2 more
wiley   +1 more source

Optimization of the cut configuration for skin grafts. [PDF]

Biomech Model Mechanobiol
Harbrecht H, Karnaev V.
europepmc   +1 more source

A Social Risk‐Based Approach Supporting Corporate Sustainability Reporting Directive Framework

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Social sustainability is difficult to measure due to its qualitative and context‐specific nature. However, regulatory pressure and stakeholder expectations increasingly require organisations to disclose robust and verifiable information. In this context, the European Corporate Sustainability Reporting Directive (CSRD) sets new sustainability ...
Monica Serreli, Manuela D'Eusanio, Luigia Petti   +2 more
wiley   +1 more source

High-Contrast Random Composites: Homogenisation Framework and Spectral Convergence. [PDF]

Commun Math Phys
Cherdantsev M, Cherednichenko K, Velčić I.   +2 more
europepmc   +1 more source

Governance Composition, Gender Diversity, and Regional Context as Performance Drivers in Italian Innovative Start‐Ups

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Innovative start‐ups play a crucial role in promoting innovation and economic growth, while also contributing to technological competitiveness. This study analyzes the factors influencing the economic performance of these start‐ups, focusing on governance aspects and corporate resources, with particular attention to team composition, company ...
Giovanni Baldissarro, Gianpaolo Iazzolino, Donato Morea   +2 more
wiley   +1 more source

A Convergent Generalized Krylov Subspace Method for Compressed Sensing MRI Reconstruction with Gradient-Driven Denoisers. [PDF]

IEEE Trans Comput Imaging
Hong T, Villa U, Fessler JA.
europepmc   +1 more source

Nonlinear SPDEs and Maximal Regularity: An Extended Survey. [PDF]

Nonlinear Differ Equ Appl
Agresti A, Veraar M.
europepmc   +1 more source