nLab
direct limit
Context
Category theory
category theory
Concepts
Universal constructions
Theorems
Extensions
Applications
Limits and colimits
limits and colimits
1-Categorical
limit and colimit
limits and colimits by example
commutativity of limits and colimits
filtered colimit
sifted colimit
preserved limit , reflected limit , created limit
product , fiber product , base change , coproduct , pullback , pushout , cobase change , equalizer , coequalizer , join , meet , terminal object , initial object
finite limit
Kan extension
weighted limit
end and coend
2-Categorical
(∞,1)-Categorical
Model-categorical
A direct limit is the same thing as a colimit . (Similarly, an inverse limit is the same thing as a limit .) In this context, a direct system is the same thing as a diagram , and a direct cone is the same thing as a cocone .
Many authors restrict this terminology to limits over directed sets (or filtered categories ), especially the directed set ( ℕ , ≤ ) of natural numbers ; see directed colimit (or filtered colimit ) for discussion of this case if you think that it may be what you want.
Revised on July 28, 2011 02:11:39
by
Toby Bartels
(76.85.192.183)