Results 271 to 280 of about 366,215 (335)

Computational study of thin films made from the ferroelectric materials with Paul Painlevé approach and expansion and variational methods. [PDF]

Sci Rep
Shao R, Manafian J, İlhan OA, Mahmoud KH, Alreda BA, Alsubaie AS.   +5 more
europepmc   +1 more source

Forward uncertainty quantification in random differential equation systems with delta‐impulsive terms: Theoretical study and applications

Mathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7609-7629, 15 May 2025.
This contribution aims at studying a general class of random differential equations with Dirac‐delta impulse terms at a finite number of time instants. Our approach directly addresses calculating the so‐called first probability density function, from which all the relevant statistical information about the solution, a stochastic process, can be ...
Vicente J. Bevia, Juan C. Cortés, Rafael J. Villanueva   +2 more
wiley   +1 more source

Well-posedness of Keller-Segel systems on compact metric graphs. [PDF]

J Evol Equ
Shemtaga H, Shen W, Sukhtaiev S.
europepmc   +1 more source

Using decomposition of the nonlinear operator for solving non‐differentiable problems

Mathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7987-8006, 15 May 2025.
Starting from the decomposition method for operators, we consider Newton‐like iterative processes for approximating solutions of nonlinear operators in Banach spaces. These iterative processes maintain the quadratic convergence of Newton's method.
Eva G. Villalba, Miguel Hernandez, Jose L. Hueso, Eulalia Martínez   +3 more
wiley   +1 more source

Stability, bifurcation, and large-amplitude vibration analysis of a symmetric magnetic spherical pendulum. [PDF]

Sci Prog
Big-Alabo A, Chuku MT.
europepmc   +1 more source

Scalable tube model predictive control of uncertain linear systems using ellipsoidal sets

International Journal of Robust and Nonlinear Control, Volume 35, Issue 7, Page 2499-2520, 10 May 2025.
Abstract This work proposes a novel robust model predictive control (MPC) algorithm for linear systems affected by dynamic model uncertainty and exogenous disturbances. The uncertainty is modeled using a linear fractional perturbation structure with a time‐varying perturbation matrix, enabling the algorithm to be applied to a large model class. The MPC
Anilkumar Parsi, Andrea Iannelli, Roy S. Smith   +2 more
wiley   +1 more source

Gauss Newton Method for Solving Variational Problems of PDEs with Neural Network Discretizaitons. [PDF]

J Sci Comput
Hao W, Hong Q, Jin X.
europepmc   +1 more source

On the isoperimetric Riemannian Penrose inequality

Communications on Pure and Applied Mathematics, Volume 78, Issue 5, Page 1042-1085, May 2025.
Abstract We prove that the Riemannian Penrose inequality holds for asymptotically flat 3‐manifolds with nonnegative scalar curvature and connected horizon boundary, provided the optimal decay assumptions are met, which result in the ADM$\operatorname{ADM}$ mass being a well‐defined geometric invariant.
Luca Benatti, Mattia Fogagnolo, Lorenzo Mazzieri   +2 more
wiley   +1 more source

Propagation of wave insights to the Chiral Schrödinger equation along with bifurcation analysis and diverse optical soliton solutions. [PDF]

Sci Rep
Alkahtani BST.
europepmc   +1 more source

First‐Order Empirical Interpolation Method for Real‐Time Solution of Parametric Time‐Dependent Nonlinear PDEs

Numerical Methods for Partial Differential Equations, Volume 41, Issue 3, May 2025.
ABSTRACT We present a model reduction approach for the real‐time solution of time‐dependent nonlinear partial differential equations (PDEs) with parametric dependencies. A major challenge in constructing efficient and accurate reduced‐order models for nonlinear PDEs is the efficient treatment of nonlinear terms.
Ngoc Cuong Nguyen
wiley   +1 more source