Some decomposable continua and Whitney levels of their hyperspaces
| Autor: | Matsuhashi, Eiichi, Oshima, Yoshiyuki |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We introduce the new class of continua; $D^{**}$-$continua$. The classes of Wilder continua and $D^{*}$-continua are strictly contained in the class of $D^{**}$-continua. Also, the class of $D$-continua is bigger than the class of $D^{**}$-continua. Using $D^{**}$-continua, we give the negative answer to a Question. Furthermore, we prove that being Wilder, being $D$, being $D^*$ and being $D^{**}$ are Whitney properties. Comment: 8 pages, 1 figure |
| Databáze: | arXiv |
| Externí odkaz: |
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