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Results tagged with ct.category-theory
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user 22247
Enriched categories, topoi, abelian categories, monoidal categories, homological algebra.
0
votes
Category Theory and Ergodic Theory
You might want to have a look on the recent paper by Gromov ,
In a Search for a Structure, Part 1: On Entropy. June 19, 2012,
http://www.ihes.fr/~gromov/PDF/structres-entropy-june-2012.pdf ;
it menti …
- 468
2
votes
2
answers
421
views
functors unique up to self-equivalence of the source category
Call two functors two functors $H,H':S\longrightarrow T$ weakly equivalent, or equivalent up to a self-equivalence of the source category, iff
there exists a self-equivalence of $s:S \longrightarrow …
- 468
3
votes
The category of posets
There is an example of a model category structure on a preorder of families of sets, defined as follows: $X\leq Y$ iff every element $x\in X$ is bounded $x\leq y_x$ by some element of $y_x\in Y$;
fami …