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Free Banach lattices under convexity conditions
Héctor Jardón-Sánchez1, Niels Jakob Laustsen1, Mitchell A Taylor2
1Department of Mathematics and Statistics, Fylde College, Lancaster University, Lancaster, LA1 4YF UK.
Abstract:
We prove the existence of free objects in certain subcategories of Banach lattices, including p-convex Banach lattices, Banach lattices with upper p-estimates, and AM-spaces. From this we immediately deduce that projectively universal objects exist in each of these subcategories, extending results of Leung, Li, Oikhberg and Tursi (Israel J. Math. 2019). In the p-convex and AM-space cases, we are able to explicitly identify the norms of the free Banach lattices, and we conclude by investigating the structure of these norms in connection with nonlinear p-summing maps.
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