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Sharp concentration estimates near criticality for radial sign‐changing solutions of Dirichlet and Neumann problems
We consider radial solutions of the slightly subcritical problem − Δ u ε = | u ε | 4 n − 2 − ε u ε either on R n ( n ⩾ 3 ) or in a ball B satisfying Dirichlet or Neumann boundary conditions. In particular, we provide …