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Questions on the symbolic (DSolve, DifferentialRoot) and numerical (NDSolve) solutions of differential equations in Mathematica.

7 votes
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532 views

How to use periodic boundary conditions on the derivative of u[x,y,z]? [closed]

I have a structural mechanical problem, where i try to calculate the strain field in the modelled material. I simplified the problem in the following example: There is a material with two phases, wher …
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