In this paper we study the null controllability of some non diagonalizable degenerate parabolic systems of PDEs, we assume that the diffusion, coupling and controls matrices are constant and we characterize the null controllability by an algebraic condition so called Kalman's rank condition.

中文翻译：

---

具有不可对角线扩散矩阵的退化抛物方程组的可控性

在本文中，我们研究了一些不可对角化的退化PDE抛物系统的零可控制性，我们假设扩散，耦合和控制矩阵是恒定的，并且通过代数条件（称为卡尔曼秩条件）来表征零可控制性。