Journal ArticleDOI
A Homotopy Method with Adaptive Basis Selection for Computing Multiple Solutions of Differential Equations
TLDR
In this article, the authors presented a new method by constructing a spectral approximation space adaptively based on a greedy algorithm for nonlinear differential equations, then multiple solutions were computed by the homotopy continuation method on this low-dimensional approximation space.Abstract:
The homotopy continuation method has been widely used to compute multiple solutions of nonlinear differential equations, but the computational cost grows exponentially based on the traditional finite difference and finite element discretizations. In this work, we presented a new method by constructing a spectral approximation space adaptively based on a greedy algorithm for nonlinear differential equations. Then multiple solutions were computed by the homotopy continuation method on this low-dimensional approximation space. Various numerical examples were given to illustrate the feasibility and the efficiency of this new approach.read more
Citations
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Journal ArticleDOI
HomPINNs: Homotopy physics-informed neural networks for learning multiple solutions of nonlinear elliptic differential equations
Yao Huang,Wenrui Hao,Guang Lin +2 more
TL;DR: In this article , the authors combine PINNs with the homotopy continuation method, a classical numerical method to compute isolated roots of polynomial systems, and propose a new deep learning framework, named homoopy physics-informed neural networks (HomPINNs), for solving multiple solutions of nonlinear elliptic differential equations.
Journal ArticleDOI
Convergence analysis of neural networks for solving a free boundary problem
TL;DR: A novel approach for solving a modified Hele–Shaw problem based on the neural network discretization is developed, which can be verified by computing some non-radially symmetric solutions which are not characterized by any theorems.
Posted Content
Convergence analysis of neural networks for solving a free boundary system
TL;DR: This paper develops a novel approach for solving a modified Hele-Shaw problem based on neural network discretization and verifies the capability of this approach by computing some non-radially symmetric solutions which are not characterized by any theorems.
References
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BookDOI
Singularities and groups in bifurcation theory
TL;DR: Singularities and groups in bifurcation theory as mentioned in this paper have been used to solve the problem of finding a group of singularities in a set of problems with multiple solutions.
Journal ArticleDOI
The Numerical Solution of Parabolic and Elliptic Differential Equations
D. W. Peaceman,H. H. Rachford +1 more
Journal ArticleDOI
Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry and Engineering
TL;DR: This book discusses Chaos, Fractals, and Dynamics, and the Importance of Being Nonlinear in a Dynamical View of the World, which aims to clarify the role of Chaos in the world the authors live in.
Book
Analysis, Synthesis and Design of Chemical Processes
TL;DR: In this article, the authors present essential flow diagrams for understanding processes, including the structure of Chemical Process Flow Diagrams, and tools for evaluating system performance and performance curves for individual unit operations.
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