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PresentationsOn sufficient solvability conditions for the class of Neumann problems for polyharmonic equationSouth Ural State University, Russia, 454080, Chelyabinsk, pr. Lenina, 76 Using elements of an integer Neumann triangle, the necessary and sufficient solvability conditions for a class of Neumann type boundary value problems for the homogeneous polyharmonic equation in a unit ball are obtained.
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