On Bell's duality theorem for harmonic functions
Joaquín Motos, Salvador Pérez-Esteva (1999)
Studia Mathematica
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Define as the subspace of consisting of all harmonic functions in B, where B is the ball in the n-dimensional Euclidean space and E is any Banach space. Consider also the space consisting of all harmonic E*-valued functions g such that is bounded for some m>0. Then the dual is represented by through , . This extends the results of S. Bell in the scalar case.