algebra universalis

, Volume 55, Issue 1, pp 45–55 | Cite as

Projective extensions of semilattices

Original Paper


Sabine Koppelberg has introduced and studied the notion of projective extensions of Boolean algebras. Our aim is to characterize the projective extensions of semilattices.

2000 Mathematics Subject Classification.

06B25 08B30 

Keywords and phrases.

Projective extension coproduct projective semilattice semilattice with identity 


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Copyright information

© Birkhäuser Verlag, Basel 2006

Authors and Affiliations

  1. 1.Katedra AGDM, FMFIComenius UniversityBratislavaSlovakia

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