Elliptic and weakly coercive systems of operators in Sobolev spaces

D. V. Limanskii, M. M. Malamud

It is known that an elliptic system $\{P_j(x,D){\}}_1^N$ of order $l$ is weakly coercive in $\stackrel{\circ }{W}{}_{\infty }^l({\mathbb{R}}^n)$, that is, all differential monom…