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The Operator Theory of Generalized Boundary Value Problems
註釋Adjoint relations are characterized for regular or certain singular nth order differential systems constrained by infinitely many homogenous 'locally regular' side conditions represented by Stieltjes measures. The system is viewed as generating both 'maximal' and 'minimal' operators on appropriate subspaces of the locally integrable functions. The adjoint relations are determined with respect to an arbitrary 'dual pairing' in the sense of R. Arens.