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I have a B.Sc in computer science and a B.Sc in mathematics from the Technion.

I am interested mainly in abstract algebra and I hope to start graduate school soon to continue study some advanced topics in this area.

Currently I am going over Abstract Algebra by Dummit and Foote to recall old topics and fill some gaps I have, while working full time as a programmer.


6h
comment Let $p,q$ are distinct primes and $G$ be a group of order $pq$ then which of the following is true?
How does this help?
11h
comment Equal integrals, circles, opposite directions
@Hagrid - This is part of the question that asks you to understand that going over this circle the other way around (i.e clockwise and not anti-clockwise) means that the integral value would be minus the value were we to go over the path the regular way
11h
comment Equal integrals, circles, opposite directions
@Hagrid - Yes, you got it right!
12h
comment Finding $\sum \frac{1}{n^2+7n+9}$
@Pkwssis - Using a partition of $[0,1]$ to $n$ parts with equal length
12h
answered How to prove this $\theta$ notation
12h
comment Extension field, degree of $[\mathbb Q(i,\sqrt{-3}):\mathbb Q]$
@idm - Because both $i,\sqrt{-3}\in\mathbb{Q}(i,\sqrt{-3})$ and it it closed under addition (since it is defined to be a field)
13h
answered Equal integrals, circles, opposite directions
13h
answered Extension field, degree of $[\mathbb Q(i,\sqrt{-3}):\mathbb Q]$
1d
comment $27 | (2x+1)^2 \implies 2x$ is a multiple of 9?
@MJD - Why not post this as an answer ?
1d
revised Why is any subspace affine?
deleted 1 character in body
1d
comment Why is any subspace affine?
This looks like the definition of convexity not of affinity..
2d
revised Galois group of $x^{2^k}+1$
added 1 character in body
2d
answered About kernel space
2d
comment For all $X \subseteq \mathbb{N}$ there exist $n \in \mathbb{N}$ with $|X| < n$.
Yes. And for your choice there are infinite number of subsets, given any k there is the subset of all element smaller than k. So there is at least one subset per Natural number and thus infinite number of subsets
2d
comment For all $X \subseteq \mathbb{N}$ there exist $n \in \mathbb{N}$ with $|X| < n$.
Yes. And for your choice there are infinite number of subsets, given any k there is the subset of all element smaller than k. So there is at least one subset per Natural number and thus infinite number of subsets
2d
answered For all $X \subseteq \mathbb{N}$ there exist $n \in \mathbb{N}$ with $|X| < n$.
Oct
20
awarded  Popular Question
Oct
18
answered Pleas help me MATLAB!
Oct
18
revised Show that if x,y,z are not divisible by 53, then $x^{26}+4y^{26} \neq\ z^{26}$
edited title
Oct
18
comment Prove that a matrix with a given characteristic polynomial is diagonalizable
$-3$, not $ 3 $