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In this paper, we consider discrete $p$-Laplacian parabolic equations with$q$-reaction term under the mixed boundary condition and the initial conditionas follows: \begin{equation*} \begin{cases} u_{t}\left(x,t\right) =\Delta_{p,\omega} u\left(x,t\right) +\lambda \left\vert u\left(x,t\right)\right\vert^{q-1} u\left(x,t\right), &\left(x,t\right) \in S \times\left(0,\infty\right), \\ \mu(z)\frac{\partial u}{\partial_{p}n}(z)+\sigma(z)\vert u(z)\vert^{p-2}u(z)=0, &\left(x,t\right) \in \partial S\times \left[0,\infty\right), \\ u\left(x,0\right) = u_{0}(x) \geq 0, &x \in\overline{S}. \end{cases} \end{equation*} where $p>1$, $q>0$, $\lambda>0$ and$\mu,\sigma$ are nonnegative functions on the boundary $\partial S$ of anetwork $S$, with $\mu(z)+\sigma(z)>0$, $z\in\partial S$. Here,$\Delta_{p,\omega}$ and $\frac{\partial \phi}{\partial_{p} n}$ denote thediscrete $p$-Laplace operator and the $p$-normal derivative, respectively. Theparameters $p>1$ and $q>0$ are completely characterized to see when thesolution blows up, vanishes, or exists globally. Indeed, the blow-up rates whenblow-up does occur are derived. Also, we give some numerical illustrationswhich explain the main results.

A complete characterization of the blow-up solutions to discrete  $p$-Laplacian parabolic equations with $q$-reaction under the mixed boundary  conditions