Measures of noncompactness in Köthe spaces
DOI:
https://doi.org/10.12775/TMNA.2024.045Keywords
Measures of noncompactness, fixed point theorems, Orlicz spaces, Lebesgue spaces, r.i. spacesAbstract
In this paper we introduce some measures of noncompactness and establish estimates between them. Such estimates are helpful to apply fixed point theorems of Darbo-Sadovskiĭ type to compositions of operators. Explicit formulas for calculating these measures of noncompactness are also given, with a particular emphasis on Lebesgue and Orlicz spaces.References
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