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Mar
5
revised Discriminant is the unique invariant of $\text{SL}_2\mathbb{Z}$ acting on polynomials.
added 88 characters in body
Mar
5
asked Discriminant is the unique invariant of $\text{SL}_2\mathbb{Z}$ acting on polynomials.
Feb
26
awarded  Popular Question
Feb
19
awarded  Popular Question
Feb
15
awarded  Popular Question
Feb
13
accepted 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
Feb
13
revised 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
added 25 characters in body
Feb
13
comment 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
@KevinCarlson Thank you, I will edit.
Feb
13
revised 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
added 51 characters in body
Feb
13
comment 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
@NajibIdrissi Yes.
Feb
13
asked 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
Jan
28
comment Conservation of bilinear forms and conjugation
@OlivierBégassat Could you clarify what the matrix of a bilinear form is?
Jan
27
accepted Conservation of bilinear forms and conjugation
Jan
27
comment Conservation of bilinear forms and conjugation
@OlivierBégassat Yes.
Jan
27
comment Conservation of bilinear forms and conjugation
@OlivierBégassat Thanks, it was $\Bbb{C}$.
Jan
27
revised Conservation of bilinear forms and conjugation
added 31 characters in body
Jan
27
asked Conservation of bilinear forms and conjugation
Jan
13
accepted Groups with no nontrivial topology
Jan
13
comment Groups with no nontrivial topology
@PedroTamaroff Thanks, these are the sort of things I really appreciate in trying to work out how to intuit the topologisation of groups.
Jan
13
comment Groups with no nontrivial topology
@NajibIdrissi Okay, edited.