User Marcos - MathOverflow

Marcos

Member for 1 year, 7 months
Last seen this week

Spain

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18 Questions

Score Activity Newest Views

10 votes

2 answers

892 views

Homotopy type of the geometric realization of a poset

asked Jun 6 at 20:44

7 votes

1 answer

418 views

Geometric realization of a poset

asked Jun 19 at 17:48

5 votes

0 answers

206 views

Quotient of a $F_n$ group which is $F_n$

asked Sep 27 at 19:01

4 votes

1 answer

114 views

Salvetti complex of dihedral Artin group

asked Dec 1 at 9:24

4 votes

1 answer

90 views

$K(\pi,1)$-conjecture ofr Artin groups behave well with respect to special subgroups. Reference-Request

asked Jun 8 at 9:36

4 votes

2 answers

185 views

Vanishing of a product of cyclotomic polynomials in characteristic 2

asked Jan 18 at 11:08

3 votes

0 answers

84 views

Dimension of a kernel of a cocycle map

asked May 2 at 8:32

3 votes

0 answers

162 views

Write an Artin group as an HNN-extension

asked May 26 at 10:40

3 votes

0 answers

96 views

Kazhdan's property $T$ implies not virtually indicable

asked Nov 30, 2022 at 15:48

2 votes

0 answers

76 views

Chain complex of the Salvetti complex of an Artin group

asked Oct 27, 2022 at 11:27

2 votes

1 answer

202 views

Quotient of an Artin group is an Artin group

asked Apr 17 at 21:51

1 vote

0 answers

80 views

Image of the boundary maps in the homological spectral sequence of a filtration of a chain complex

asked Apr 19 at 11:54

1 vote

1 answer

81 views

Counting the number of summands in a vector space over characteristic $2$ to get a direct sum

asked Mar 23 at 10:41

1 vote

1 answer

378 views

Dimension of a kernel of a linear map

asked Mar 23 at 17:18

1 vote

1 answer

171 views

Finiteness of $\ell^2$-Betti numbers

asked May 15, 2022 at 17:09

1 vote

0 answers

130 views

Find the number of tuples $(x_0,x_1,\dots)$ such that $n=\sum\limits_{j=0}^\infty x_j2^{j}$ and $m=\sum\limits_{j=0}^\infty x_j(2^{j}-1)$

asked Sep 11 at 9:27

1 vote

2 answers

166 views

Prove that the ideal of $\mathbb{C}G$ generated by a family of elements $\lbrace p_i\rbrace_{i=1}^n$ is equal to $\mathbb{C}G$

asked Sep 26 at 7:34

0 votes

1 answer

195 views

Infinite dimensional homology and spectral sequences

asked Mar 10 at 11:42