Abstract
In this paper, we are going to characterize the space BMO(ℝn) through variable Lebesgue spaces and Morrey spaces. There have been many attempts to characterize the space BMO(ℝn) by using various function spaces. For example, Ho obtained a characterization of BMO(ℝn) with respect to rearrangement invariant spaces. However, variable Lebesgue spaces and Morrey spaces do not appear in the characterization. One of the reasons is that these spaces are not rearrangement invariant. We also obtain an analogue of the well-known John-Nirenberg inequality which can be seen as an extension to the variable Lebesgue spaces.
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The research has been supported by Osaka City University Advanced Mathematical Institute. This work is partially supported by Grant-in-Aid for Young Scientists (B) No. 21740104, Japan Society for the Promotion of Science.
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Izuki, M., Sawano, Y. Variable Lebesgue norm estimates for BMO functions. Czech Math J 62, 717–727 (2012). https://doi.org/10.1007/s10587-012-0042-5
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DOI: https://doi.org/10.1007/s10587-012-0042-5