On the non-uniqueness of minimal projection in spaces |
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Authors: | Boris Shekhtman Lesaw Skrzypek |
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Institution: | aDepartment of Mathematics, University of South Florida, 4202 E. Fowler Ave., PHY 114, Tampa, FL 33620-5700, USA |
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Abstract: | The main objective of this note is to exhibit a simple example of subspaces U Lp(μ) (p≠2) that admit two different projections with minimal norm. While for p=1,∞, such subspaces are well-known W. Odyniec, G. Lewicki, Minimal Projections in Banach Spaces, in: Lecture Notes in Mathematics, vol. 1449, Springer-Verlag, Berlin, 1990. Problems of existence and uniqueness and their application], for 1<p<∞ their existence was open. |
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