On relations:
-
Chapter 6: Relations, Question 6.3.8.1.2, on better characterisations of representably full morphisms in $\textbf{Rel}$. This question also appears as [
MO 467527
]. -
Chapter 6: Relations, Question 6.3.10.1.2, on better characterisations of corepresentably full morphisms in $\textbf{Rel}$. This question also appears as [
MO 467527
]. -
Chapter 6: Relations, Question 7.2.1.1.2, seeking a characterisation of which left Kan extensions exist in $\textbf{Rel}$. This question also appears as [
MO 461592
]. -
Chapter 6: Relations, Question 7.2.1.1.3, seeking an explicit descriptions of left Kan extensions along relations of the form $f^{-1}$ (which always exist in $\textbf{Rel}$). This question also appears as [
MO 461592
]. -
Chapter 6: Relations, Question 7.2.2.1.2, seeking a characterisation of which left Kan lifts exist in $\textbf{Rel}$. This question also appears as [
MO 461592
]. -
Chapter 6: Relations, Question 7.2.2.1.3, seeking an explicit descriptions of left Kan lifts along relations of the form $\text{Gr}\webleft (f\webright )$ (which always exist in $\textbf{Rel}$). This question also appears as [
MO 461592
].
On categories:
-
Chapter 9: Categories, Question 9.6.2.1.3, seeking a better characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ to always be full. This question also appears as [
MO 468121
]. -
Chapter 9: Categories, Question 9.6.4.1.3, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be conservative. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.6.5.1.2, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be essentially injective. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.6.6.1.2, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be essentially surjective. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.7.1.1.3, , seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be dominant. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.7.2.1.3, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be monic. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.7.3.1.3, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be epic. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.7.5.1.5, seeking a characterisation of necessary and sufficient conditions on $F$ for $F^{*}$ or $F_{*}$ to be pseudoepic. This question also appears as [
MO 468125
]. -
Chapter 9: Categories, Question 9.7.5.1.3, seeking a characterisation of pseudoepic functors. This question also appears as [
MO 321971
]. -
Chapter 9: Categories, Question 9.7.5.1.4, which asks whether a pseudomonic and pseudoepic functor must necessarily be an equivalence of categories. This question also appears as [
MO 468334
]. - Chapter 9: Categories, Question 9.8.4.1.3, seeking a characterisation of functors representably faithful on cores.
- Chapter 9: Categories, Question 9.8.5.1.3, seeking a characterisation of functors representably full on cores.
- Chapter 9: Categories, Question 9.8.6.1.3, seeking a characterisation of functors representably fully faithful on cores.
- Chapter 9: Categories, Question 9.8.7.1.3, seeking a characterisation of functors corepresentably faithful on cores.
- Chapter 9: Categories, Question 9.8.8.1.3, seeking a characterisation of functors corepresentably full on cores.
- Chapter 9: Categories, Question 9.8.9.1.3, seeking a characterisation of functors corepresentably fully faithful on cores.