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| Main Author: | |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.20249 |
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| _version_ | 1866908330656530432 |
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| author | Ivanov, Aleksander |
| author_facet | Ivanov, Aleksander |
| contents | We consider metric versions of weak soficity, LEF and residual finiteness. The main results of the paper extend Glebsky and Rivera's characterization of weak soficity to the case of normally finitely generated groups with word metrics. Metric LEF and residual finiteness are also characterized in this class. We deduce that the free group $\mathsf{F}_2$ is not metrically weakly sofic with respect to its standard invariant word norm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_20249 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Groups which are metrically weakly sofic with respect to word norms Ivanov, Aleksander Group Theory 20A15, 20E05, 20E26, 20F69 We consider metric versions of weak soficity, LEF and residual finiteness. The main results of the paper extend Glebsky and Rivera's characterization of weak soficity to the case of normally finitely generated groups with word metrics. Metric LEF and residual finiteness are also characterized in this class. We deduce that the free group $\mathsf{F}_2$ is not metrically weakly sofic with respect to its standard invariant word norm. |
| title | Groups which are metrically weakly sofic with respect to word norms |
| topic | Group Theory 20A15, 20E05, 20E26, 20F69 |
| url | https://arxiv.org/abs/2410.20249 |