913 reputation
816
bio website a.b.c.d
location Paris, France
age 54
visits member for 3 years, 4 months
seen 2 days ago

Not much to say.


May
19
revised Number of finite simple groups of given order is at most 2 - is a classification-free proof possible?
edited tags
May
19
comment Why are there only a finite number of sporadic simple groups?
@Joseph : John is referring to Claude Chevalley's article in the Tohoku Journal : Sur certains groupes simples, Tohoku Math. J. (2) Volume 7, Number 1-2 (1955), pp14-66. You can find it on a library or Project Euclid.
May
19
revised Why are there only a finite number of sporadic simple groups?
edited tags
May
19
comment A Question about p-primary Group
@Arturo : You seem to think that the original wording of the question should stay and that it is better to have the clarification in the answer. Am I correct?
May
19
answered If set is closed under some operation, what does that tell us about the structure of the groupoid?
May
19
comment What structure is this?
In your description, r(x) and r(x,y) do not depend on x, but only on the coefficients of f,g,h. Is it a typo or do you really mean that r(x) and r(x,y) are constants and not power series?
May
19
revised Ignoring elements of small order in the simple group of order $60$
edited tags
May
19
suggested suggested edit on Internal Structure of A_7
May
19
revised Internal Structure of A_7
edited tags
May
16
revised What are the units of cyclotomic integers?
edited tags
May
15
comment Application of Galois theory
@Qiaochu : I am interested to know if you agree with the version.
May
15
revised What is the best way to show that no positive powers of this matrix will be the identity matrix?
added homework tag
May
15
suggested suggested edit on What is the best way to show that no positive powers of this matrix will be the identity matrix?
May
15
awarded  Organizer
May
15
revised Proof of sylow theorem (1)
added two tags
May
15
suggested suggested edit on Proof of sylow theorem (1)
May
15
revised Application of Galois theory
Added graphic and hierarchized explanation
May
15
revised Application of Galois theory
Large edits for better articulation of the relation of GT to the OP's problem.
May
15
comment Application of Galois theory
@iyengar: Your question seems motivated by the reading of a textbook or an example presented as motivation for Galois Theory. Perhaps you can give us more context as well?
May
15
revised Application of Galois theory
Whole text editing