Stable and singular solutions of the equation Δu = 1/u
Alexander M. Meadows
Abstract
We study properties of the semilinear elliptic equation Δu = 1/u on domains in Rn, with an eye toward nonnegative singular solutions as limits of positive smooth solutions. We prove the nonexistence of such solutions in low dimensions when we also require them to be stable for the corresponding variational problem. The problem of finding singular solutions is related to the general study of singularities of minimal hypersurfaces in Euclidean space.
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