Zongxiang Yi
  • Member for 5 years, 2 months
  • Last seen more than a month ago
2 answers
8 votes
473 views
4 bookmarks
Find $\gcd(p^n-1,p^m+1)$.
1 answers
6 votes
92 views
1 bookmarks
Is it true that $q\nmid k$ where $q$ is the characteristic of a ring and $k$ is the order of any unit?
2 answers
4 votes
65 views
What is the sufficient and necessary conditions that $-1 \in G$, where $G$ is a multiplicative group of a ring.
1 answers
3 votes
132 views
2 bookmarks
How to elegantly find the remainder of $en$ divided by $n+1+\frac{n-1}{d}$
0 answers
3 votes
83 views
Does there exist an element of order 4 in a finite ring with characteristic 2?
0 answers
2 votes
40 views
How to determine the vector space generated by linearized polynomials over finite fields?
1 answers
2 votes
51 views
Find finite rings $(R,+,\times)$ such that for every unit $r$, $r-1$ is a unit except $r=1$.
1 answers
2 votes
453 views
How to generate a matrix group with two generators?
0 answers
2 votes
84 views
1 bookmarks
How to construct an irreducible polynomial over finite field with a specified order?
1 answers
2 votes
49 views
1 bookmarks
Is $g\mid f$ and $ord(f)=ord(g)$ implies that the splitting field of $f$ equals that of $g$?
1 answers
2 votes
114 views
How to do Statistical hypothesis testing
0 answers
2 votes
42 views
how to calulate the number of powers in finite field
3 answers
1 votes
201 views
When $ab/(a+b)$ is an integer, where $a,b$ are positive integers.
2 answers
1 votes
89 views
1 bookmarks
Find solutions of $m=\frac{n^2}{(n-m-1)\lambda+n}$ where $n,m,\lambda$ are postive integers,$1\le\lambda \le n-1$ and $m\mid n$.
1 answers
1 votes
28 views
Does the finiteness of $R/P$ imply that of $R/P^r$, where $P$ is a prime ideal?
0 answers
1 votes
38 views
Find the minimal polynomial over finite fields.
2 answers
1 votes
81 views
Find the rings such that $I^s=\{0\}$ for any maximal ideal $I$ where $s$ is the characteristic.
1 answers
1 votes
48 views
Find a ring embedding from a finite field to a Galois ring
1 answers
1 votes
36 views
About the multiplicative group of order 4 in a ring
0 answers
1 votes
68 views
1 bookmarks
Solve Inequality with ceiling function.
1 answers
1 votes
55 views
Is $M_n(R)$ Dedekind if $R$ is Dedekind?
0 answers
1 votes
53 views
Computing the power of the matrix $A$
1 answers
1 votes
367 views
1 bookmarks
About Matrix function on Jordan normal form
0 answers
1 votes
42 views
1 bookmarks
Let $f,g$ be two irreducible polynomials over finite field $\mathbb{F}_q$ such that $\text{ord}(f)=\text{ord}(g)$. Prove that $\deg(f)=\deg(g)$.
1 answers
1 votes
289 views
1 bookmarks
Find the degree of splitting field of a separable polynomial over finite field
1 answers
0 votes
53 views
What is the domain of $3x^{\frac{2}{3}}-x$
1 answers
0 votes
44 views
a problem about a generalization of cosets in a group.
1 answers
0 votes
82 views
1 bookmarks
Find other factors of the euler function of $2^k-1$ where $k\ge 2$ is an integer, except $2$.
0 answers
0 votes
93 views
Find the invertible solutions of $x^{-1}+x=0$ over a ring.
1 answers
0 votes
48 views
If $f$ has $\deg(f)$ distince roots whose order are the same, then is $f$ irreducible?