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Main Authors: Kim, Bongseok, Zhang, Jiahao, Lin, Guang
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.18515
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author Kim, Bongseok
Zhang, Jiahao
Lin, Guang
author_facet Kim, Bongseok
Zhang, Jiahao
Lin, Guang
contents Partial differential equations (PDEs) form a central component of scientific computing. Among recent advances in deep learning, evolutionary neural networks have been developed to successively capture the temporal dynamics of time-dependent PDEs via parameter evolution. The parameter updates are obtained by solving a linear system derived from the governing equation residuals at each time step. However, strong-form evolutionary approaches can yield ill-conditioned linear systems due to pointwise residual discretization, and their computational cost scales unfavorably with the number of training samples. To address these limitations, we propose a weak-form evolutionary Kolmogorov-Arnold Network (KAN) for the scalable and accurate prediction of PDE solutions. We decouple the linear system size from the number of training samples through the weak formulation, leading to improved scalability compared to strong-form approaches. We also rigorously enforce boundary conditions by constructing the trial space with boundary-constrained KANs to satisfy Dirichlet and periodic conditions, and by incorporating derivative boundary conditions directly into the weak formulation for Neumann conditions. In conclusion, the proposed weak-form evolutionary KAN framework provides a stable and scalable approach for PDEs and contributes to scientific machine learning with potential relevance to future engineering applications.
format Preprint
id arxiv_https___arxiv_org_abs_2602_18515
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Weak-Form Evolutionary Kolmogorov-Arnold Networks for Solving Partial Differential Equations
Kim, Bongseok
Zhang, Jiahao
Lin, Guang
Machine Learning
Artificial Intelligence
Partial differential equations (PDEs) form a central component of scientific computing. Among recent advances in deep learning, evolutionary neural networks have been developed to successively capture the temporal dynamics of time-dependent PDEs via parameter evolution. The parameter updates are obtained by solving a linear system derived from the governing equation residuals at each time step. However, strong-form evolutionary approaches can yield ill-conditioned linear systems due to pointwise residual discretization, and their computational cost scales unfavorably with the number of training samples. To address these limitations, we propose a weak-form evolutionary Kolmogorov-Arnold Network (KAN) for the scalable and accurate prediction of PDE solutions. We decouple the linear system size from the number of training samples through the weak formulation, leading to improved scalability compared to strong-form approaches. We also rigorously enforce boundary conditions by constructing the trial space with boundary-constrained KANs to satisfy Dirichlet and periodic conditions, and by incorporating derivative boundary conditions directly into the weak formulation for Neumann conditions. In conclusion, the proposed weak-form evolutionary KAN framework provides a stable and scalable approach for PDEs and contributes to scientific machine learning with potential relevance to future engineering applications.
title Weak-Form Evolutionary Kolmogorov-Arnold Networks for Solving Partial Differential Equations
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2602.18515