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SUBFUNCTOR

Subfunctor

In category theory, a branch of mathematics, a subfunctor is a special type of functor that is an analogue of a subset. Let C {\displaystyle {\mathcal

Subfunctor

Grothendieck topology

Mathematical structure

{\displaystyle {\mathcal {C}}} , a sieve on c {\displaystyle c} is a subfunctor of the functor Hom ⁡ ( − , c ) {\displaystyle \operatorname {Hom} (-,c)}

Grothendieck topology

Grothendieck_topology

Unipotent

Algebraic term

/ F p {\displaystyle {\textbf {Sch}}/\mathbb {F} _{p}} , there is the subfunctor α p {\displaystyle \alpha _{p}} where α p ( X ) = { x ∈ O ( X ) : x p

Unipotent

Vopěnka's principle

of ordinals cannot be fully embedded in the category of graphs. Every subfunctor of an accessible functor is accessible. (In a definable classes setting)

Vopěnka's principle

Vopěnka's_principle

Concrete category

Category equipped with a faithful functor to the category of sets

let UN be the functor C → Set determined by UN(c) = (U(c))N. Then a subfunctor of UN is called an N-ary predicate and a natural transformation UN → U

Concrete category

Concrete_category

Sieve (category theory)

→ S e t {\displaystyle S\colon C^{\rm {op}}\to {\rm {Set}}} on c is a subfunctor of Hom(−, c), i.e., for all objects c′ of C, S(c′) ⊆ Hom(c′, c), and for

Sieve (category theory)

Sieve_(category_theory)

Preradical

Subfunctor in mathematics

In mathematics, a preradical is a subfunctor of the identity functor in the category of left modules over a ring with identity. The class of all preradicals

Preradical

Quot scheme

functor which has a natural stratification into a disjoint union of subfunctors, each of which is represented by a projective S {\displaystyle S} -scheme

Quot scheme

Quot_scheme

Ringed topos

Topos-theoretic version of a ringed space

\prod X(R_{f_{i}f_{j}})} Also, there must exist open affine subfunctors U i = Spec ( A i ) = Hom CAlg ( A i , − ) {\displaystyle

Ringed topos

Ringed_topos

Online names & meanings

Sweeting

Surname or Lastname

English

Sweeting

English : from a medieval personal name, originally an Old English patronymic from SwÄ“t(a) (see Sweet).English : from Middle English sweting â€˜darlingâ€™, â€˜sweetheartâ€™, hence a nickname for a popular and attractive person, or for somebody who habitually addressed people with the term.