category of quivers with finite components

Notation Quivfc\Quiv_{\fc} Objects quivers whose connected components are finite Morphisms morphisms of quivers Related Quiv\Quiv, Euclid⊔\Euclid_{\sqcup}

Here, zigzags are allowed in the definition of a connected quiver (just like in the definition of a connected category). Thus, the objects are precisely the coproducts of finite quivers. We have included this category solely as an example of a category with a subobject classifier that does not have coequalizers. Note that Quivfc\Quiv_{\fc} is the free coproduct completion of the category of finite connected quivers.

Satisfied Properties

Assigned properties

Deduced properties

Unsatisfied Properties

Assigned properties

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

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Special objects

  • terminal object: the quiver with one vertex and one loop
  • initial object: the quiver with no vertices and hence no edges
  • products: [finite case] just as in Quiv\Quiv
  • coproducts: just as in Quiv\Quiv

Special morphisms

  • isomorphisms: morphisms f=(fV,fE)f = (f_V, f_E) such that fVf_V and fEf_E are bijective
  • monomorphisms: morphisms f=(fV,fE)f = (f_V, f_E) such that fVf_V and fEf_E are injective
  • epimorphisms: morphisms f=(fV,fE)f = (f_V, f_E) such that fVf_V and fEf_E are surjective
  • regular monomorphisms: same as monomorphisms
  • regular epimorphisms: same as epimorphisms