Lifting scheme: Difference between revisions

Revision as of 07:02, 24 July 2013

F : C \to D

is essentially surjective (or dense) if each object $d$ of $D$ is isomorphic to an object of the form $F c$ for some object $c$ of $C$ . Any functor which is part of an equivalence is essentially surjective.

Template:Categorytheory-stub Template:Functors

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+In [[category theory]], a [[functor]]
+:<math>F:C\to D</math>
+is '''essentially surjective''' (or '''dense''') if each object <math>d</math> of <math>D</math> is isomorphic to an object of the form <math>Fc</math> for some object <math>c</math> of <math>C</math>. Any functor which is part of an [[Equivalence of categories|equivalence]] is essentially surjective.
+{{Categorytheory-stub}}
+{{Functors}}
+[[Category:Functors]]

Lifting scheme: Difference between revisions

Revision as of 07:02, 24 July 2013

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