Title
On Exponentiable Morphisms in Classical Algebra.
Abstract
We study exponentiability of homomorphisms in varieties of universal algebras close to classical ones. After describing an “almost folklore” general result, we present a purely algebraic proof of “étale implies exponentiable”, alternative to the topologically motivated proof given in one of our previous papers, in a different context. We prove that only isomorphisms are exponentiable homomorphisms in ideal determined varieties and extend this to ideal determined categories. Finally, we give a complete characterization of exponentiable homomorphisms of semimodules over semirings.
Year
DOI
Venue
2016
https://doi.org/10.1007/s10485-016-9458-7
Applied Categorical Structures
Keywords
Field
DocType
Exponentiable morphism,Taut monad,Subtractive variety,Ideal determined variety,Semimodule,18C15,18C20,08A62,16Y60
Topology,Discrete mathematics,Semimodule,Algebraic number,Algebra,Isomorphism,Homomorphism,Mathematics,Morphism
Journal
Volume
Issue
ISSN
24
5
0927-2852
Citations 
PageRank 
References 
0
0.34
1
Authors
3
Name
Order
Citations
PageRank
Maria Manuel Clementino16125.61
Dirk Hofmann27325.09
George Janelidze34033.99