A Third‐Order p‐Laplacian Boundary Value Problem Solved by an SL(3, ℝ) Lie‐Group Shooting Method

Chein-Shan Liu

Journal of Applied Mathematics, 2013, vol. 2013, issue 1

Abstract: The boundary layer problem for power‐law fluid can be recast to a third‐order p‐Laplacian boundary value problem (BVP). In this paper, we transform the third‐order p‐Laplacian into a new system which exhibits a Lie‐symmetry SL(3, ℝ). Then, the closure property of the Lie‐group is used to derive a linear transformation between the boundary values at two ends of a spatial interval. Hence, we can iteratively solve the missing left boundary conditions, which are determined by matching the right boundary conditions through a finer tuning of r ∈ [0, 1]. The present SL(3, ℝ) Lie‐group shooting method is easily implemented and is efficient to tackle the multiple solutions of the third‐order p‐Laplacian. When the missing left boundary values can be determined accurately, we can apply the fourth‐order Runge‐Kutta (RK4) method to obtain a quite accurate numerical solution of the p‐Laplacian.

Date: 2013
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https://doi.org/10.1155/2013/497863

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnljam:v:2013:y:2013:i:1:n:497863

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