3,875 reputation
1833
bio website sharif.academia.edu/…
location Tehran, Iran
age 25
visits member for 3 years, 4 months
seen 14 hours ago

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Aug
26
answered Mathematical Analysis 2nd ed. - Apostol, Exercise 4.2
Aug
16
answered Characterizing groups with linear subgroups
Aug
16
answered There is no group whose quotient by the center is isomorphic to the quaternion group
Apr
2
answered Raising multiplied group elements to a power
Apr
2
answered Product of cyclic groups
Apr
2
answered If in a group $G$, we have $a^5 = e$ and $aba^{-1} = b^2$ for some $a$, $b$ in $G$, then what is the order of $b$?
Mar
29
answered Linear Algebra: Suppose A is n x m, and n < m. Show that A'A is singular.
Mar
29
answered proving to see that a normal subgroup is equal to a subgroup if one of the subgroup is the identity.
Mar
11
answered Let G be a group and let H,K be subgroups of G where |H|=12 and |K|=5. Then the intersection of H and K = {e}.
Mar
10
answered Prove that H is a subgroup of G
Mar
6
answered Signature of permutations is a homomorphism
Mar
6
answered Irreducible Representation and the center of a group
Mar
6
answered What is the centralizer of (1 2 3)(4 5 6) in $S_6$
Mar
4
answered Order of automorphism group
Feb
27
answered A second isomorphism theorem for action on cosets
Feb
25
answered Why do certain inner-product conditions imply linear independence?
Feb
21
answered Is $(y_n)_{n\geq1}$ convergent or not?
Feb
21
answered Solving $[x]=ax+1$
Feb
21
answered Is the tree still connected?
Feb
21
answered Finding integers $m,n$ such that $(m-n)^2=4mn/(m+n-1)$