Figure 5From: Finite difference approach for variable order reaction–subdiffusion equationsUnstable numerical solution of the variable order fractional reaction–subdiffusion equation at \(\lambda= 1\) for \(\Delta x=\frac{1}{25}\), \(\Delta t=\frac{1}{160}\), final time \(T=1\), \(\alpha(x,t)=\frac {16+(xt)^{5}}{17}\), the stability condition does not holdBack to article page