A problem about algebraic integers and roots of unity
65252
Average of sum of unit roots is an algebraic integer
134896
Enlightening proof that the algebraic numbers form a field
127330
Exercises on Galois Theory
90591
On the group of all complex roots of unity whose orders are powers of $p$, prime number
92595
A problem regarding the in-equality of complex numbers .
55197
Roots of $ x^3-3x+1$
54374
Alternating Series Using Other Roots of Unity
151225
Solved Problems in Algebraic Number Theory
37219
Quadratic Integers in $\mathbb Q[\sqrt{-5}]$
121373
Elementary Symmetric Polynomials, Roots of cubic polynomials
63409
If $x^2+ax+b=0$ has a rational root, show that it is in fact an integer
4401
Constructive proof that algebraic numbers form a field
41486
If $x^n + a_{n-1}x^{n-1} + ... + a_0 = 0$ has a rational root, then such root is an integer
94179
Problems on Cyclotomic Polynomials
74827
Integer ordered pair of $(x,y)$ in complex algebraic equation
150822
Finding $\sum_{k=0}^{n-1}\frac{\alpha_k}{2-\alpha_k}$, where $\alpha_k$ are the $n$-th roots of unity
107765
Prove that there exists two roots in $[-1,1]$