Mappings between dendroids (fans) that (does not) preserve (non)contractibility.
J. J. Charatonik formulated in 1991 the following problem: What are all mappings that preserve contractibility (noncontractibility) of dendroids? On the other hand, J. J. Charatonik, W. J. Charatonik, and S. Miklos asked in 1990 the following questions (among others related to contractibility): Wha...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Spanish |
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Universidad Industrial de Santander
2021-05-01
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| Series: | Revista Integración |
| Subjects: | |
| Online Access: | https://revistas.uis.edu.co/index.php/revistaintegracion/article/view/12172 |