Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/11419
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Almeida, J. | - |
dc.contributor.author | Escada, A. | - |
dc.date.accessioned | 2009-09-15T09:30:43Z | - |
dc.date.available | 2009-09-15T09:30:43Z | - |
dc.date.issued | 2004 | - |
dc.identifier.citation | Pré-Publicações DMUC. 04-12 (2004) | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/11419 | - |
dc.description.abstract | Given a basis of pseudoidentities for a pseudovariety of ordered semigroups containing the 5-element aperiodic Brandt semigroup B2, under the natural order, it is shown that the same basis, over the most general graph over which it can be read, defines the global. This is used to show that the global of the level 3/2 of the refinement of Straubing-Th´erien’s concatenation hierarchy introduced by Pin and Weil has infinite vertex rank. | en_US |
dc.description.sponsorship | European Community Fund FEDER, POCTI/32817/MAT/2000; INTAS grant #99-1224; FCT; Centro de Matemática da Universidade do Porto; Centro de Matemática da Universidade de Coimbra | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Centro de Matemática da Universidade de Coimbra | en_US |
dc.rights | openAccess | en_US |
dc.subject | Semigroup | en_US |
dc.subject | Pseudovariety | en_US |
dc.subject | Semigroupoid | en_US |
dc.subject | pseudoidentity | en_US |
dc.subject | Dot-depth | en_US |
dc.subject | Concatenation hierarchies | en_US |
dc.title | The globals of pseudovarieties of ordered semigroups containing B2 and an application to a problem proposed by Pin | en_US |
dc.type | preprint | en_US |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.openairetype | preprint | - |
item.openairecristype | http://purl.org/coar/resource_type/c_816b | - |
item.fulltext | Com Texto completo | - |
Appears in Collections: | FCTUC Matemática - Artigos em Revistas Nacionais |
Files in This Item:
File | Description | Size | Format | |
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The globals of pseudovarieties of ordered semigroups containing B2.pdf | 297.49 kB | Adobe PDF | View/Open |
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