Results 141 to 150 of about 33,788 (311)
Price Convergence across Regions in India [PDF]
The paper attempts to examine whether there is price convergence across various regions in India. Our results indicate significant presence of cross-sectional de- pendence in prices in India, rendering some of the standard panel unit root tests ...
Samarjit Das, Kaushik Bhattacharya
core
Asymptotic convergence in distribution of the area bounded by prevalence-weighted Kaplan-Meier curves using empirical process modelling. [PDF]
R Soc Open Sci, 2018 Heuser A, Huynh M, Chang JC.
europepmc +1 more source
Optimal subsampling for regression with mixed‐type predictors
Canadian Journal of Statistics, EarlyView.Abstract Subsampling has emerged as an appealing strategy to mitigate the computational and storage challenges imposed by large datasets. Recent subsampling techniques have shown notable computational gains for data dominated by numerical predictors. However, real‐world datasets frequently contain both numerical and categorical predictors.
Jiaqing Zhu, Lin Wang, Fasheng Sun
wiley +1 more source
Balanced Growth and Output Convergence in Europe [PDF]
Using OECD quarterly data on consumption, output and investment from 1980, the balanced growth hypothesis is tested country by country for seven European economies, Belgium, Finland, France, Holland, Italy, Spain and the UK. Output series for each of the
Clifford L.F. Attfield
core
The SIR Model in a Moving Population: Propagation of Infection and Herd Immunity
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT In a collection of particles performing independent random walks on Zd$\mathbb {Z}^d$ we study the spread of an infection with SIR dynamics. Susceptible particles become infected when they meet an infected particle. Infected particles heal and are removed at rate ν$\nu$.
Duncan Dauvergne, Allan Sly
wiley +1 more source
IEEE AccessThis paper addresses the distributed tracking problem for higher-order nonlinear multi-agent systems characterized by unknown control directions and uncertain dynamics under directed graphs.
Zhihua Zhang, Chaoli Wang, Xuan Cai
doaj +1 more source
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 +2 more
wiley +1 more source
Formalization of Asymptotic Convergence for Stationary Iterative Methods
Solutions to differential equations, which are used to model physical systems, are computed numerically by solving a set of discretized equations. This set of discretized equations is reduced to a large linear system, whose solution is typically found using an iterative solver.
Mohit Tekriwal +2 more
openaire +2 more sources
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.Linear infrared spectroscopy combined with isotope labeling and density functional theory unravels the origin of a Fermi triad in a multifunctional vibrational chromophore. Ultrafast 2DIR‐spectroscopy reports directly on the dynamics and the intramolecular vibrational energy flow pathways in the isotopically deperturbed system. Abstract Infrared probes
Claudia Gräve +4 more
wiley +1 more source