575 reputation
215
bio website
location
age
visits member for 2 years, 7 months
seen Jun 18 at 10:53

Jun
5
comment Convex subcomplexes of CAT(0) cubical complexes
In addition to Anton Petrunin's answer below, maybe also this paper is of interest: arxiv.org/abs/1211.1871
Jan
7
comment Group cohomology with compact support
Complementing Yemon Choi's comment: Maybe you mean Prop. 7.5 on p. 209 in Brown's book.
Nov
8
awarded  Yearling
Sep
4
accepted Semidirect products with braid groups and type $F_\infty$
Sep
4
answered Semidirect products with braid groups and type $F_\infty$
Sep
4
accepted Directed subposet of a poset containing the minimal elements
Sep
4
answered Directed subposet of a poset containing the minimal elements
Sep
4
revised Directed subposet of a poset containing the minimal elements
deleted 256 characters in body
Aug
23
comment Semidirect products with braid groups and type $F_\infty$
Nice trick! Why don't you post it as a regular answer so that I can upvote and accept it? Question too easy?
Aug
22
revised Semidirect products with braid groups and type $F_\infty$
deleted 34 characters in body
Aug
22
comment Semidirect products with braid groups and type $F_\infty$
By permutation of the factors via the projection $B_k\rightarrow S_k$.
Aug
22
asked Semidirect products with braid groups and type $F_\infty$
Aug
20
comment Directed subposet of a poset containing the minimal elements
Thanks Paul for the keywords, I will have to look them up. I used the definition of E in the context of arxiv.org/abs/1407.5171 Definition 6.3. But I have the feeling that there is more behind that definition and that's why I'm asking.
Aug
17
revised Directed subposet of a poset containing the minimal elements
added 60 characters in body
Aug
17
revised Directed subposet of a poset containing the minimal elements
added 115 characters in body
Aug
17
comment Directed subposet of a poset containing the minimal elements
Andreas, yes, there might be no minimal elements in $\{z:x<z>y\}$ and this set even might be empty. However, in my application, there is always at least one minimal element in that set.
Aug
17
asked Directed subposet of a poset containing the minimal elements
Jul
2
awarded  Curious
May
2
accepted Isomorphisms and higher homotopy
May
2
asked Isomorphisms and higher homotopy