In this paper, we establish the existence of a class of discrete nonlinear systems involving the anisotropic $\vec{p}(\cdot)$-Laplacian operator using an optimization based approach. We then simulate the solutions by implementing a deep learning model. The numerical results demonstrate that the proposed method is stable and robust compared to conventional approaches such as the Newton–Krylov method.
- Agarwal R. P. Difference equations and inequalities: Theory, methods and applications. Boca Raton (2000).
- Aggarwal C. C. Neural Networks and Deep Learning. A Textbook. Springer Cham (2018).
- Cai X., Yu J. Existence theorems for second-order discrete boundary value problems. Journal of Mathematical Analysis and Applications. 320 (2), 649–661 (2006).
- Sanou R., Kone B. Weak nontrivial solutions of Dirichlet discrete nonlinear problems. Asia Pacific Journal of Mathematics. 7, 33 (2020).
- Ibrango I., Koné B., Guiro A., Ouaro S. Weak solutions for anisotropic nonlinear discrete Dirichlet boundary value problems in a two-dimensional Hilbert space. Nonlinear Dynamics and Systems Theory. 21 (1), 90–99 (2021).
- Tian Y., Ge W. Existence of multiple positive solutions for discrete problems with p-Laplacian via variational methods. Electronic Journal of Differential Equations. 2011 (45), 1–8 (2011).
- Zhang G., Liu S. On a class of semipositone discrete boundary value problem. Journal of Mathematical Analysis and Applications. 325 (1), 175–182 (2007).
- Galewski M., Wieteska R. Existence and multiplicity of positive solutions for discrete anisotropic equations. Turkish Journal of Mathematics. 38 (2), 297–310 (2014).
- Galewski M.,Głąb S., Wieteska R. Positive solutions for anisotropic discrete boundary-value problems. Electronic Journal of Differential Equations. 32, 1–9 (2013).
- Zhikov V. Averaging of functionals in the calculus of variations and elasticity. Mathematics of the USSR-Izvestiya. 29, 33–66 (1987).
- Ibrango I., Ouedraogo D., Guiro A. Existence of non trivial weak solutions for discrete non linear problems in n-dimensional HILBERT space. Electronic Journal of Mathematical Analysis and Applications. 11 (1), 190–197 (2023).
- Du S., Zhou Z. Multiple Solutions for Partial Discrete Dirichlet Problems Involving the $p$-Laplacian. Mathematics. 8 (11), 2030 (2020).
- Li S., Song W., Fang L., Chen Y., Ghamisi P., Benediktsson J. A. Deep learning for hyperspectral image classification: An overview. IEEE Transactions on Geoscience and Remote Sensing. 57 (9), 6690–6709 (2019).
- Nascimento R. G., Fricke K., Viana F. A. C. A tutorial on solving ordinary differential equations using Python and hybrid physics-informed neural network. Engineering Applications of Artificial Intelligence. 96, 103996 (2020).
- Ranade R., Hill C., He H., Maleki A., Chang N., Pathak J. A composable autoencoder-based iterative algorithm for accelerating numerical simulations. Preprint arXiv:2110.03780 (2021).
- Pham B., Nguyen T., Nguyen T. T., Nguyen B. T. Solve systems of ordinary differential equations using deep neural networks. 2020 7th NAFOSTED Conference on Information and Computer Science (NICS). 42–47 (2020).
- Nam H., Baek K. R., Bu S. Error estimation using neural network technique for solving ordinary differential equations. Advances in Continuous and Discrete Models. 2022, 45 (2022).
- Hornik K., Stinchcombe M., White H. Universal approximation of an unknown mapping and its derivatives using multilayer feedforward networks. Neural Networks. 3 (5), 551–560 (1990).
- Raissi M., Perdikaris P., Karniadakis G. E. Physics-informed neural networks: A deep learning framework for solving forward and inverse problems involving nonlinear partial differential equations. Journal of Computational Physics. 378, 686–707 (2019).
- Raissi M., Perdikaris P., Karniadakis G. E. Physics Informed Deep Learning (Part I): Data-driven Solutions of Nonlinear Partial Differential Equations. Preprint arXiv:1711.10561 (2017).
- Hariri I., Radid A., Rhofir K. Physics-informed neural networks for the reaction-diffusion Brusselator model. Mathematical Modeling and Computing. 11 (2), 448–454 (2024).
- Hariri I., Radid A., Rhofir K. Embedding physical laws into Deep Neural Networks for solving generalized Burgers–Huxley equation. Mathematical Modeling and Computing. 11 (2), 505–511 (2024).
- Jagtap A. D., Kawaguchi K., Karniadakis G. E. Adaptive activation functions accelerate convergence in deep and physics-informed neural networks. Journal of Computational Physics. 404, 109136 (2020).
- Saad Y. Iterative Methods for Sparse Linear Systems. Society for Industrial and Applied Mathematics, 2nd edition (2003).
- Golub G. H., Van Loan C. F. Matrix Computations. Johns Hopkins University Press, Baltimore, 4th edition (2013).
- Radulescu V. D., Repovs D. D. Partial differential equations with variable exponents: variational methods and qualitative analysis. Chapman and Hall/CRC, New York (2015).