arXiv Open Access 2020

Tall $F_σ$ subideals of tall analytic ideals

Jan Grebík Zoltán Vidnyánszky

Lihat Sumber

Abstrak

Answering a question of Hrušák, we show that every analytic tall ideal on $ω$ contains an $F_σ$ tall ideal. We also give an example of an $F_σ$ tall ideal without a Borel selector.

Topik & Kata Kunci

math.LO

Penulis (2)

Jan Grebík

Zoltán Vidnyánszky

Format Sitasi

APA MLA BibTeX

Grebík, J., Vidnyánszky, Z. (2020). Tall $F_σ$ subideals of tall analytic ideals. https://arxiv.org/abs/2009.13686

Akses Cepat

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Informasi Jurnal

Tahun Terbit: 2020
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓