Blowup of solutions of the three-dimensional Rosenau–Burgers equation

We consider the initial boundary value problem for the well-known three-dimensional Rosenau–Burgers equation in the cylinder $(0,L)\otimes\mathbb{S}$ (where $\mathbb{S}\subset\mathbb{R}^2$) for some boundary conditions. Using the test-function method, we obtain the result on the blowup of solutions of this initial boundary value problem during a finite time. This is one of the first results in the “blowup” direction for this equation.