Composition Operators on the Space of Bounded Harmonic Functions
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- Choa, J.S., Izuchi, K.J. & Ohno, S. Integr. equ. oper. theory (2008) 61: 167. doi:10.1007/s00020-008-1579-4
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We study composition operators on the space of bounded harmonic functions on the open unit disk. The principal goal of this paper is to provide criteria for determining the essential norm of difference of two composition operators.