##  [Nonrepresentable Functor](/nonrepresentable-functor) 

  ##  [Nonrepresentable Functor](https://algebra.quantumdictionary.io/nonrepresentable-functor-0) 

  

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- Pure Mathematics -

**Algebra Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A functor from a category of schemes (or other algebraic objects) to sets or groupoids that cannot be isomorphic to the functor of points of any scheme or algebraic space; it signals that the desired moduli cannot be captured by schemes alone.