Results 141 to 150 of about 115,454 (246)
Group‐Specific Nonlinear Mixed Effects Models for Longitudinal Data With Realignment of Time
Statistics in Medicine, Volume 45, Issue 23-24, October 2026.ABSTRACT We propose group‐specific nonlinear mixed effects models for longitudinal data whose indexing time is right‐aligned to specific events, modeled as the time preceding those events. These models are motivated by dementia cohort studies that examine nonlinear trajectories of longitudinal cognitive test scores in late life, with separate ...
Ziyue Liu, Sujuan Gao
wiley +1 more source
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract Physics‐informed neural networks (PINNs) provide a promising framework for river hydrodynamic simulation and parameter inversion under sparse observations. However, spatial heterogeneity in channel geometry and roughness causes strong variations in flood‐wave propagation and parameter sensitivity, challenging local conservation and joint state‐
Ziyan Lu +6 more
wiley +1 more source
Solving Stochastic Climate‐Economy Models: A Deep Least‐Squares Monte Carlo Approach
Mathematical Finance, Volume 36, Issue 4, Page 751-770, October 2026.ABSTRACT Stochastic versions of recursive integrated climate‐economy assessment models are essential for studying and quantifying policy decisions under uncertainty. However, as the number of state variables and stochastic shocks increases, solving these models via deterministic grid‐based dynamic programming (e.g., value‐function iteration/projection ...
Aleksandar Arandjelović +4 more
wiley +1 more source
Spectral Analysis of High Order Continuous FEM for Hyperbolic PDEs on Triangular Meshes: Influence of Approximation, Stabilization, and Time-Stepping. [PDF]
J Sci Comput, 2023 Michel S +3 more
europepmc +1 more source
International Journal for Numerical Methods in Engineering, Volume 127, Issue 18, 30 September 2026.ABSTRACT Preparing quantum states with desired amplitude distributions is a key bottleneck in the implementation of quantum linear and nonlinear dynamics solvers, including Linear Combination of Hamiltonian Simulation (LCHS) and Schrödingerization. We present a direct, closed‐form construction of Quantized Tensor Train (QTT) representations for two ...
Katsuhiro Endo, Kazuaki Z. Takahashi
wiley +1 more source
International Journal of Robust and Nonlinear Control, Volume 36, Issue 14, Page 6719-6738, 25 September 2026.ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio +4 more
wiley +1 more source
Engineering Transactions, 1968 Exact geometric equations and those of internal equilibrium are derived on the grounds of the assumptions of the theory of thin shells by introducing Lagrangian and Eulerian coordinates. As the fundamental functions are assumed the displacement u and the
Z. Waszczyszyn
doaj
Sundman‐Like Transformations and the NRT Nonlinear Schrödinger Equation
Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 14791-14810, 15 September 2026.ABSTRACT We present a new generalization of the well‐known power‐type Sundman transformation, involving not only powers of the function but also of its derivative, along with its inverse. Our aim is to explore the use of such transformations in the derivation of solutions of ordinary differential equations and in the study of their properties.
P. R. Gordoa +3 more
wiley +1 more source
Analysis of light-wave nonstaticity in the coherent state. [PDF]
Sci Rep, 2021 Choi JR.
europepmc +1 more source
Convergence of Gauss-Laguerre quadrature formulae
, 2006 An account of the error and of the convergence theory is given for Gauss-Laguerre quadrature formulae. We develop also truncated models of the original Gauss rules to compute integrals extended over the positive real ...
Criscuolo G, Capobianco MR
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