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Published online by Cambridge University Press: 17 February 2009
In this article, exact and approximate techniques are used to obtain parameters of interest for two problems involving differential equations of power-law type. The first problem is related to non-linear steady-state diffusion, and is investigated by means of a hodograph transformation and an approximation using a path-independent integral. The second problem involves Poiseuille flow of a pseudo-plasticfluid, and a path-independent integral is derived which yields an exact result for the geometry under consideration.
 ”, Q. Jl. Mech. Appl. Math.  37 (1984) 401–419.Google Scholar
”, Q. Jl. Mech. Appl. Math.  37 (1984) 401–419.Google Scholar