Solving second-order nonlinear evolution partial differential equations using deep learning*

被引:59
作者
Li, Jun [1 ]
Chen, Yong [2 ,3 ,4 ]
机构
[1] East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China
[2] East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Sch Math Sci, Shanghai Key Lab PMMP, Shanghai 200062, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Peoples R China
[4] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
deep learning; nonlinear evolution equations; data-driven solutions; solitons; nonlinear dynamics; NEURAL-NETWORKS; APPROXIMATION;
D O I
10.1088/1572-9494/aba243
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Solving nonlinear evolution partial differential equations has been a longstanding computational challenge. In this paper, we present a universal paradigm of learning the system and extracting patterns from data generated from experiments. Specifically, this framework approximates the latent solution with a deep neural network, which is trained with the constraint of underlying physical laws usually expressed by some equations. In particular, we test the effectiveness of the approach for the Burgers' equation used as an example of second-order nonlinear evolution equations under different initial and boundary conditions. The results also indicate that for soliton solutions, the model training costs significantly less time than other initial conditions.
引用
收藏
页数:11
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