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Inequalities for boundary value problems for systems of partial differential operators. (English) Zbl 0267.35026

Astérisque 2/3, 171-187 (1973).
For the entire collection see [Zbl 1384.35003].

MSC:

35J20 Variational methods for second-order elliptic equations
35B45 A priori estimates in context of PDEs
35G15 Boundary value problems for linear higher-order PDEs