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Notes on generalized boundary value problems in Banach spaces. II. Infinite-dimensional extension theory

Notes on generalized boundary value problems in Banach spaces. II. Infinite-dimensional extension theory

LetX, Γbe Banach spaces and ^f\X^ Y, Γ*-+X* be linear relations. Suppose ^f is a restriction of the adjoint (or preadjoint) ^* of & and the codimension of G(-$O in G(&*) is not necessarily finite. Under certain hypotheses we can describe in computational ly useful ways extensions ^ of sf …