2025-02-22T17:44:29-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22oai%3Aojs.admjournal.luguniv.edu.ua%3Aarticle-670%22&qt=morelikethis&rows=5
2025-02-22T17:44:29-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22oai%3Aojs.admjournal.luguniv.edu.ua%3Aarticle-670%22&qt=morelikethis&rows=5
2025-02-22T17:44:29-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-22T17:44:29-05:00 DEBUG: Deserialized SOLR response
Derivations and relation modules for inverse semigroups

Derivations and relation modules for inverse semigroups

We define the derivation module for a homomorphism of inverse semigroups, generalizing a construction for groups due to Crowell.  For a presentation map from a free inverse semigroup, we can then define its relation module as the kernel of a canonical map from the derivation module to the augmentati...

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Bibliographic Details
Main Author: Gilbert, N. D.
Format: Article
Language:English
Published: Lugansk National Taras Shevchenko University 2018
Subjects:
inverse semigroup
cohomology
derivation
relation module
20M18,20M50,18G20
Online Access:https://admjournal.luguniv.edu.ua/index.php/adm/article/view/670
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https://admjournal.luguniv.edu.ua/index.php/adm/article/view/670

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