scientific article

zbMATH Open0492.35058MaRDI QIDQ3954215

Walter Allegretto

Publication date: 1981

Title of this publication is not available (Why is that?)

zbMATH Keywords

unbounded domainsmooth boundaryFriedrichs extensionfiniteness of the negative spectrum

Mathematics Subject Classification ID

Oscillation, zeros of solutions, mean value theorems, etc. in context of PDEs (35B05) Asymptotic distributions of eigenvalues in context of PDEs (35P20) Higher-order elliptic equations (35J30)

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