Orlicz-Lorentz空间的Boyd指数
Boyd Indices of Orlicz-Lorentz Space
摘要:
Orlicz-Lorentz空间是Orlicz空间和Lorentz空间的一个共同推广。在本文中,我们研究他们的Boyd指数。给出了Boyd指数根据定义函数的Matuszewska-Orlicz指数的界。此外,我们给出了一个例子,以显示的博伊德指数和Zippin指数的Orlicz-Lorentz空间不需要是相等的,回答了一个问题的Orlicz-Lorentz。最后,我们展示了博伊德指数与Orlicz-Lorentz空间是p-凸还是q-凹的关系。
英文摘要:
Orlicz-Lorentz spaces provide a common generalization of Orlicz spaces and Lorentz spaces. In this paper, we investigate their Boyd indices. Bounds on the Boyd indices in terms of the Matuszewska-Orlicz indices of the defining functions are given. Also, we give an example to show that the Boyd indices and Zippin indices of an Orlicz-Lorentz space need not be equal, answering a question of Maligranda. Finally, we show how the Boyd indices are related to whether an Orlicz-Lorentz space is p-convex or q-concave.
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