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Estimates for the norm of the hardy operator in operator ideals
E. N. Lomakina, M. G. Nasyrova Computer Centre of Far Eastern Branch RAS, Khabarovsk
Abstract:
We find the conditions for a compact Hardy operator in Lorentz spaces to belong to the operator ideals generated by sequences of $s$-numbers. We obtain some estimates of the norms of the Hardy operator in these ideals in terms of integral expressions depending on the weight functions of the operator.
Keywords:
operator ideal, Hardy operator, Lorentz spaces, approximation numbers, $s$-numbers.
Received: 16.08.2023 Revised: 25.10.2023 Accepted: 28.11.2023
Citation:
E. N. Lomakina, M. G. Nasyrova, “Estimates for the norm of the hardy operator in operator ideals”, Sibirsk. Mat. Zh., 65:2 (2024), 332–348
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https://www.mathnet.ru/eng/smj7858 https://www.mathnet.ru/eng/smj/v65/i2/p332
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Abstract page: | 54 | References: | 18 | First page: | 17 |
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