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Über Bedingungen der Sebstadjungiertheit eines quasielliptischen Operators. (Russian) Zbl 0363.47013
MSC:
47B25 Linear symmetric and selfadjoint operators (unbounded)
47F05 General theory of partial differential operators (should also be assigned at least one other classification number in Section 47-XX)
35J99 Elliptic equations and elliptic systems
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