Banach function spaces done right
Emiel Lorist (TU Delft - Analysis)
Zoe Nieraeth (BCAM Basque Center for Applied Mathematics)
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Abstract
In this survey, we discuss the definition of a (quasi-)Banach function space. We advertise the original definition by Zaanen and Luxemburg, which does not have various issues introduced by other, subsequent definitions. Moreover, we prove versions of well-known basic properties of Banach function spaces in the setting of quasi-Banach function spaces.