The Integral Equation Method and the Neumann Problem for the Poisson Equation on NTA Domains
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The Neumann problem for the Poisson equation is studied on a general open subset G of the Euclidean space. The right-hand side is a distribution F supported on the closure of G. It is shown that a solution is the Newton potential corresponding to a distribution B ∈ε (clG), where ε(clG) is the set of all distributions with finite energy supported on the closure of G. The solution is looked for in this form and the original problem reduces to the integral equation TB = F. If the equation TB = F is solvable, then the solution is constructed by the Neumann series. The necessary and sufficient conditions for the solvability of the equation TB = F is given for NTA domains with compact boundary.
Mathematics Subject Classification (2000).Primary 31B10 Secondary 35J05, 35J25, 65N99
Keywords.Poisson equation Neumann problem integral equation method NTA domain successive approximation method
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