Reputation
1,558
Next privilege 2,000 Rep.
Edit questions and answers
Badges
3 9 25
Impact
~10k people reached

  • 0 posts edited
  • 74 helpful flags
  • 2,103 votes cast
May
16
comment In a commutative ring with identity, if $p$ is irreducible, is ($p$) a maximal ideal?
I will have to think about it
May
16
comment In a commutative ring with identity, if $p$ is irreducible, is ($p$) a maximal ideal?
In a general commutative ring $R$, $R/I$ is a field iff $I$ is maximal in $R$. So, what you are really asking is: if $(p)$ is maximal whenever $p$ is irreducible, is $R[X]$ a PID?
May
16
answered In a commutative ring with identity, if $p$ is irreducible, is ($p$) a maximal ideal?
May
14
reviewed Reviewed Mathematically, why was the Enigma machine so hard to crack?
May
14
reviewed No Action Needed Precedence of nested NOTs in boolean algebra
May
14
reviewed No Action Needed Simple question in Rank
May
14
reviewed No Action Needed norms of row matrices
May
13
reviewed No Action Needed Finite differences on a hexagonal/triangular lattice with Cartesian coordinates
May
13
reviewed No Action Needed Generalization of the Weierstrass M-test?
May
12
comment $A$ is normal matrix.If $A{A^T}$ has $n$ distinict eigenvalue,why $A$ is symmetric?
$A$ normal means that $AA^T=A^TA$. But $AA^T=A^TA$ does not imply $A=A^T$ in general.
May
10
awarded  Yearling
May
9
reviewed No Action Needed Trigonometry with quadrilateral and triangles
May
9
reviewed No Action Needed When is a matrix diagonalizable?
May
6
reviewed No Action Needed Multiplicity of an eigenvalue=number of times it appears on the diagonal?
May
6
reviewed No Action Needed Calculating average rolling cost stock for bulk products
May
4
reviewed No Action Needed Showing that the complete bipartite graph $K_{a,b}$ is a tree if and only if $a=1$ or $b=1$.
May
3
reviewed No Action Needed Why is “the set of all sets” a paradox?
May
3
reviewed No Action Needed Matrix norm inducted by infinite vector norm
May
3
reviewed Reviewed How to detect different types of curves
May
3
reviewed No Action Needed Mixed Strategy Nash Equilibrium in this game?