scientific article; zbMATH DE number 1148490

zbMath0893.35034MaRDI QIDQ4386844

Michail V. Borsuk, D. V. Portnyagin

Publication date: 4 May 1998

Full work available at URL: https://eudml.org/doc/119527

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

zbMATH Keywords

spherical coordinatestriple degeneracy

Mathematics Subject Classification ID

Smoothness and regularity of solutions to PDEs (35B65) Nonlinear boundary value problems for linear elliptic equations (35J65) Degenerate elliptic equations (35J70) A priori estimates in context of PDEs (35B45)

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