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JOURNALS
// Differentsial'nye Uravneniya
// Archive
Differ. Uravn.,
1980
Volume 16,
Number 4,
Pages
679–683
(Mi de3972)
Partial Differential Equations
The extremum principle for a system of equations
V. P. Fedotov
Gor'kii Polytechnic Institute
UDC:
517.95
Received:
20.03.1978
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Steklov Math. Inst. of RAS
, 2026