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1h
comment Galois group of $X^{5}-2X+7$ over $\mathbb{Q}$
@Alizter : suppose we can see that it has exactly three real roots then it follows that galois group is $S_5$ but in this case you ave only one real root.. This procedure (unchanged) may not be of any use.. let me try for some other way...
2h
comment Galois group of $X^{5}-2X+7$ over $\mathbb{Q}$
it does tell you how many real roots do you have for this.... which would help to find galois group...
2h
answered Galois group of $X^{5}-2X+7$ over $\mathbb{Q}$
1d
comment Confusion in Serre's Local fields book
I checked that $A^G=\hom_G(\mathbb Z,A)$ is true.. Could you please say something more about your second statement.... I guess i got it but i am not sure...
1d
comment Relation between long exact sequences and Derived functors
@NajibIdrissi : I think i understood this point... Thank you :)
1d
comment Confusion in Serre's Local fields book
@MarianoSuárez-Alvarez : I have edited the question.. please see that...
1d
revised Confusion in Serre's Local fields book
added 293 characters in body
1d
asked Confusion in Serre's Local fields book
1d
comment Relation between long exact sequences and Derived functors
@TobiasKildetoft : Yes.. a valid point... i will edit the question..
1d
comment Relation between long exact sequences and Derived functors
@TobiasKildetoft : Yes, I did.. I have explained the reason for doing so in that post....
1d
comment Relation between long exact sequences and Derived functors
@NajibIdrissi : I am sorry, i did not understand your point totally... can you please elaborate a bit more...
1d
revised Relation between long exact sequences and Derived functors
edited tags
1d
asked Relation between long exact sequences and Derived functors
Aug
23
comment Rearding notation of (Relatively)Projective/ (Relatively)Injective in Group cohomology
I am not saying definitions are wrong or any thing which even sounds like that.. I am just saying i am expecting that relatively projective is some what same as projective (Just now I have proved that a module is projective then it is relatively projective) and projective modules comes with Hom so i was expecting that i am missing something and i thought atleast injective modules should come with Hom and they did... @MarianoSuárez-Alvarez
Aug
23
asked Rearding notation of (Relatively)Projective/ (Relatively)Injective in Group cohomology
Aug
23
accepted Ideals in ring of continuous functions $\mathcal{C}[0,1]$ … NBHM- Algebra
Aug
20
comment $\det (A^2 - I) < 0 \Rightarrow \lambda \in (-1,1)$
@UneFemmeDouce : It is just a polynomial in $x$ so is continuous..
Aug
13
comment Supplement for reading Group cohomology from Serre Local Fields
Thank you for your suggestion :)
Aug
13
asked Supplement for reading Group cohomology from Serre Local Fields
Aug
12
comment Set of points at which sequence of measurable functions converge (another approach)
I am sorry... This is not readable as it is.. please consider editing...