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PreprintarXiv licencearXiv

Sequence spaces of Baire-one functions and their porosity

Abstract

We consider several families of sequences of Baire-one self-maps of [0,1] investigated by A. Alikhani-Koopaei. They form a chain of inclusions where each space is closed and nowhere dense in the next one. We prove that each space is lower 2/3-porous in the next one. If one modifies these families where sequences of Baire-one functions are real-valued uniformly bounded, then they are Banach spaces and each space of the respective chain is c-porous in the next one.

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BibTeX
@misc{balcerzak2026sequence,
  title = {{Sequence spaces of Baire-one functions and their porosity}},
  author = {Marek Balcerzak and Gertruda Ivanova},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.16909},
  eprint = {2610.16909},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.16909},
}
RIS
TY  - UNPB
TI  - Sequence spaces of Baire-one functions and their porosity
AU  - Marek Balcerzak
AU  - Gertruda Ivanova
PY  - 2026
DA  - 2026/10/12
PB  - arXiv
DO  - 10.48550/arxiv.2610.16909
UR  - https://arxiv.org/abs/2610.16909
AB  - We consider several families of sequences of Baire-one self-maps of [0,1] investigated by A. Alikhani-Koopaei. They form a chain of inclusions where each space is closed and nowhere dense in the next one. We prove that each space is lower 2/3-porous in the next one. If one modifies these families where sequences of Baire-one functions are real-valued uniformly bounded, then they are Banach spaces and each space of the respective chain is c-porous in the next one.
ER  -