Neural Network Methods for Boundary Value Problems Defined in Arbitrarily Shaped Domains

Details Neural Network Methods for Boundary Value Problems Defined in Arbitrarily Shaped Domains Neural Network Methods for Boundary Value Problems Defined in Arbitrarily Shaped Domains

1998-12-03

arxiv.org/abs/cs/9812003v1

Computer Science

Neural and Evolutionary Computing

Scientific paper

Partial differential equations (PDEs) with Dirichlet boundary conditions defined on boundaries with simple geometry have been succesfuly treated using sigmoidal multilayer perceptrons in previous works. This article deals with the case of complex boundary geometry, where the boundary is determined by a number of points that belong to it and are closely located, so as to offer a reasonable representation. Two networks are employed: a multilayer perceptron and a radial basis function network. The later is used to account for the satisfaction of the boundary conditions. The method has been successfuly tested on two-dimensional and three-dimensional PDEs and has yielded accurate solutions.

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