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Known and unknown results on elliptic boundary problems

2006
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Bulletin of the American Mathematical Society
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In a survey article by W. N. Everitt and L. Markus [EM05] in the October 2005 issue of Bulletin AMS, the authors raise some questions on boundary problems for elliptic partial differential operators. The article is primarily concerned with ODE where the choice of boundary conditions is finite dimensional, but a secondary purpose is to extend their points of view to elliptic PDE where the possible boundary conditions range in infinite-dimensional spaces, and here the authors present a number of

doi:10.1090/s0273-0979-06-01114-1
fatcat:jpijhwoivbbutdvd75g6gs4sii