Zobrazeno 1 - 10
of 1 085
pro vyhledávání: '"cancellative semigroup"'
Publikováno v:
Topological Algebra and its Applications, Vol 8, Iss 1, Pp 76-87 (2020)
A topological semigroup is monothetic provided it contains a dense cyclic subsemigroup. The Koch problem asks whether every locally compact monothetic monoid is compact. This problem was opened for more than sixty years, till in 2018 Zelenyuk obtaine
Externí odkaz:
https://doaj.org/article/1407bb6d7390420ebc6d5904092c5385
Akademický článek
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Autor:
Dudek Wieslaw A., Monzo Robert A. R.
Publikováno v:
Open Mathematics, Vol 16, Iss 1, Pp 1266-1282 (2018)
The concept of a k-translatable groupoid is explored in depth. Some properties of idempotent k-translatable groupoids, left cancellative k-translatable groupoids and left unitary k-translatablegroupoids are proved. Necessary and sufficient conditions
Externí odkaz:
https://doaj.org/article/3d784ba0e18e436baa61c53a254cc675
Autor:
EVANS, STEVEN N., MOLCHANOV, ILYA
Publikováno v:
Transactions of the American Mathematical Society, 2017 Mar 01. 369(3), 1797-1834.
Externí odkaz:
https://www.jstor.org/stable/tranamermathsoci.369.3.1797
Autor:
Radosław Łukasik
Publikováno v:
Aequationes mathematicae. 96:1041-1052
Let X be a Banach space. Fix a torsion-free commutative and cancellative semigroup S whose torsion-free rank is the same as the density of $$X^{**}$$ X ∗ ∗ . We then show that X is complemented in $$X^{**}$$ X ∗ ∗ if and only if there exists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e89c1073c80a4baa2467465f21505e4
https://doi.org/10.1007/s00010-022-00866-6
https://doi.org/10.1007/s00010-022-00866-6
Autor:
Gustavo Garrigós
This survey is a slightly extended version of the lecture given by the author at the \emph{VI International Course of Mathematical Analysis in Andaluc\'\i a} (CIDAMA), in September 2014. Most results are contained (in a slightly less general setting)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfecf751e4735c82381f49da530f43b8
http://arxiv.org/abs/2211.06374
http://arxiv.org/abs/2211.06374
Publikováno v:
Topological Algebra and its Applications, Vol 8, Iss 1, Pp 76-87 (2020)
A topological semigroup is monothetic provided it contains a dense cyclic subsemigroup. The Koch problem asks whether every locally compact monothetic monoid is compact. This problem was opened for more than sixty years, till in 2018 Zelenyuk obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::164bac2a4c7df742ebe18923df35ad07
https://doi.org/10.1515/taa-2020-0007
https://doi.org/10.1515/taa-2020-0007
Publikováno v:
Communications in Algebra. 49:3315-3334
A semigroup is called a Hua semigroup if any mapping h:S→S satisfying (∀a,b∈S) h(ab)=h(a)h(b) or h(b)h(a) is either a homomorphism or an anti-homomorphism. We use this name for such a semigroup sin...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f00e79015a0ce317547da05685eb15c7
https://doi.org/10.1080/00927872.2021.1894567
https://doi.org/10.1080/00927872.2021.1894567
Akademický článek
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