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May
19
awarded  Popular Question
May
4
comment Find the trace of the matrix $A$
Oh no... I does not mean to say trace of $A$ is $1$ i mean trace of $A$ is $n$...
May
4
comment Find the trace of the matrix $A$
I claim that trace of $A$ is $1$... For $2\times 2$ diagonal matrix with eigen values $a,b$ we need to solve $a^2+b^2=a^3+b^3=a^4+b^4$.. As of now i do not have any sensible answer for this but i believe it should be $n$
May
4
comment Find the trace of the matrix $A$
suppose $A$ is a one by one matrix $A=(a)$ then your assumption implies $a^2=a^3=a^4$ then what can you say about $a$ ??
May
4
comment Find the trace of the matrix $A$
For $a\in \mathbb{R}$ what does $a^2=a^3=a^4$ mean?
May
3
comment How to show that $\mathbb{Q}(\sqrt{p},\sqrt{q}) \subseteq \mathbb{Q}(\sqrt{p}+\sqrt{q})$
you tried something?
May
2
comment If in a UFD every maximal ideal is principal then it is a PID
@BillDubuque : I understand that... Will try to give more sensible feedback in coming comments...
May
2
comment If in a UFD every maximal ideal is principal then it is a PID
@SaunDev : I dont know.. it is just my personal view... I guess you dont have to use that zorns lemma.. I am working on it.. i will let you know if there is any positive result..
May
2
comment If in a UFD every maximal ideal is principal then it is a PID
@BillDubuque As i said it is totally my personal view and it has nothing to do with this site's policy...
May
2
comment If in a UFD every maximal ideal is principal then it is a PID
It is not readable... I mean to say this looks like some story... please edit your question.. This is just my personal opinion....
May
1
reviewed Reject A valid method of finding limits in two variables functions?
May
1
reviewed Looks OK measurable function and properties of their integrals
May
1
reviewed Looks OK Calculating two convergent series
Apr
30
comment If $\lim\limits_{z \to \infty} p(z) = \infty$, then $p(z)$ is a constant
@ᴇʏᴇs Oh No.. :D i did not see that properly...
Apr
30
answered Inner product: $(x,z)=(y,z)\implies x=y$?
Apr
30
comment Determine the degree of the extension over Q
math.stackexchange.com/questions/193317/… may be of some use..
Apr
30
comment Determine the degree of the extension over Q
what polynomial is of degree $2$? What polynomial is in $\mathbb{Q}[x]$?? Write clearly..
Apr
29
answered Simple question: How do these changes affect the determinant of my matrix?
Apr
29
comment Showing that for continuous logarithms $g_1, g_2$ of a function on a connected set, the difference $g_1 −g_2$ is a constant
How did you get "now if $g_1$ and $g_2$ are continuous, so is $k$, hence it must be a constant"
Apr
29
comment Analytic function in open unit disc.
I agree that you can not use this idea to do other problems.... But schwarz lemma does not say about existence of some function it only says if you have some holomorphic function $f:D\rightarrow D$ with $f(0)=0$ then $|f(z)|\leq z$.. So, i am not very sure how do you use this to prove existence... If you are following some book then let me know what book it is so that i can see if some thing can be done...