On bow-up conditions for systems of higher order differential inequalities

A. A. Kon'kov, A. E. Shishkov

We consider systems of the differential inequalities $$\left\{ \begin{aligned} & \sum_{|α| = m_1} \partial^αa_α(x, u_1) \ge f_1 (u_2) & \mbox{in } {\mathbb R}^n, & \sum_{|α| = m_2}…