An example of a reflexive Lorentz Gamma space with trivial Boyd and Zippin indices.
(English).Czechoslovak Mathematical Journal,
vol. 71
(2021),
issue 4,
pp. 1199-1209
Keywords: Lorentz Gamma space; reflexivity; Boyd indices; Zippin indices
Summary: We show that for every $p\in (1,\infty )$ there exists a weight $w$ such that the Lorentz Gamma space $\Gamma _{p,w}$ is reflexive, its lower Boyd and Zippin indices are equal to zero and its upper Boyd and Zippin indices are equal to one. As a consequence, the Hardy-Littlewood maximal operator is unbounded on the constructed reflexive space $\Gamma _{p,w}$ and on its associate space $\Gamma _{p,w}'$.
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