Tell whether module of root of such polynomial is smaller than 1
127169
Show that the zeros of $\sum_{k=1}^n kz^{k-1}$ are inside the unit disc
109610
Is $\mathbb{R}[X]/(P)$ isomorphic to $\mathbb C$ for every irreducible polynomial $P$ of degree $2?$
38014
How to test if a polynomial is cyclotomic, i.e. divide $x^k - 1$ for some $k$?
125785
Minimal polynomial of restriction to invariant subspace divides minimal polynomial
62134
Show that if $ R $ is an integral domain then a polynomial in $ R[X] $ of degree $ d $ can have at most $ d $ roots
143321
Number of roots of a polynomial over a finite field
148545
Degree of interpolation polynomial
141418
When is $\mathbb{F}_p[x]/(x^2-2)\simeq\mathbb{F}_p[x]/(x^2-3)$ for small primes?
125888
Nilradical strictly smaller than Jacobson radical.
40502
The Degree of Zero Polynomial.
153107
Does every connected component of $\{z : |P(z)|<1 \}$ contain a zero?
114346
Why is $a^{-1}$ mod $p$ equal to $a^{p-2}$ mod $p$?
82921
Uniqueness of $k$th root mod $m$ if $(k, \phi(m)) = 1$.
69426
Checking if the roots of a function are real
99737
Using Rouché's theorem to find a compact domain for the roots of a polynomial
1060
Minimal polynomial of intermediate extensions under Galois extensions.
75349
Minimal polynomial of $\sqrt[3]{2} + \sqrt{3}$