| Autor: |
Viorel Nitica, Andrew Torok |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Symmetry, Vol 12, Iss 9, p 1392 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2073-8994 |
| DOI: |
10.3390/sym12091392 |
| Popis: |
We consider the following semigroup problem: is the closure of a semigroup S in a topological vector space X a group when S does not lie on “one side” of any closed hyperplane of X? Whereas for finite dimensional spaces, the answer is positive, we give a new example of infinite dimensional spaces where the answer is negative. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
