scientific article; zbMATH DE number 1936678

zbMath1034.35023MaRDI QIDQ4406539

V. S. Belonosov, T. I. Zelenyak

Publication date: 25 June 2003

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

zbMATH Keywords

multipoint boundary value problemsnormal systemindex of operatorlinear elliptic operatornumber of positive eigenvalues

Mathematics Subject Classification ID

Boundary value problems for higher-order elliptic equations (35J40) Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) General theory of partial differential operators (47F05)

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