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Figure 2: Graphical solution of tanh(ω) = εω for ε = 0.1,0.09, 0.08, 0.07.
Figure 3: Numerical solutions of (1.1) when ε → 0 at t = 1.5.
Table 1: Absolute error ku a − u n k in function of x calculated from the data of Fig
Figure 5: Temporal evolution of the numerical solution obtained with initial condition given by (4.1) and for ε = 0.05.
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