Almost uniform vs. pointwise convergence from a linear point of view
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866913017226067968 |
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| author | Bernal-González, L. Calderón-Moreno, M. C. Gerlach-Mena, P. J. Prado-Bassas, J. A. |
| author_facet | Bernal-González, L. Calderón-Moreno, M. C. Gerlach-Mena, P. J. Prado-Bassas, J. A. |
| contents | A review of the state of the art of the comparison between any two different modes of convergence of sequences of measurable functions is carried out with focus on the algebraic structure of the families under analysis. As a complement of the amount of results obtained by several authors, it is proved, among other assertions and under natural assumptions, the existence of large vector subspaces as well as of large algebras contained in the family of the sequences of measurable functions converging to zero pointwise almost everywhere but not almost uniformly, and in the family of the sequences of measurable functions converging to zero almost uniformly but not uniformly almost everywhere. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16762 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Almost uniform vs. pointwise convergence from a linear point of view Bernal-González, L. Calderón-Moreno, M. C. Gerlach-Mena, P. J. Prado-Bassas, J. A. Functional Analysis 15A03, 28A20, 40A05, 40A30, 46B87 A review of the state of the art of the comparison between any two different modes of convergence of sequences of measurable functions is carried out with focus on the algebraic structure of the families under analysis. As a complement of the amount of results obtained by several authors, it is proved, among other assertions and under natural assumptions, the existence of large vector subspaces as well as of large algebras contained in the family of the sequences of measurable functions converging to zero pointwise almost everywhere but not almost uniformly, and in the family of the sequences of measurable functions converging to zero almost uniformly but not uniformly almost everywhere. |
| title | Almost uniform vs. pointwise convergence from a linear point of view |
| topic | Functional Analysis 15A03, 28A20, 40A05, 40A30, 46B87 |
| url | https://arxiv.org/abs/2507.16762 |