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zbMath0734.35064MaRDI QIDQ3361243

Yulia E. Karpeshina

Publication date: 1989

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

perturbation theory polyharmonic operator Bloch eigenvalues

Mathematics Subject Classification ID

Asymptotic distributions of eigenvalues in context of PDEs (35P20) Perturbation theory of linear operators (47A55) Perturbation theories for operators and differential equations in quantum theory (81Q15) Higher-order elliptic equations (35J30)

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