Jim

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306 Answers

newest activity votes
41
Do factorials really grow faster than exponential functions?
apr 5 at 5:25
13
Are there any other constructions of a finite field with characteristic $p$ except $\Bbb Z_p$?
apr 12 at 7:18
12
how to prove $G_1$ and $G_2$ aren't isomorphic?
mar 5 at 20:38
9
If $G/N$ and $H/N$ are isomorphic, does it imply $G$ and $H$ are isomorphic?
mar 13 at 8:05
8
Abelian group admitting a surjective homomorphism onto an infinite cyclic group
apr 16 at 3:15
8
What is the relationship between any natural number and two other natural numbers?
feb 19 at 20:13
7
How can $\mathbb{N}$ have an upper bound?
apr 10 at 8:03
7
Let $ A, B $ be two square matrices of order $n$. Do $ AB $ and $ BA $ have same minimal and characteristic polynomials?
feb 22 at 17:20
7
Powers and the logarithm
feb 18 at 8:19
7
why split epi and mono implies iso?
feb 17 at 22:44
7
Does this problem have a name?
feb 4 at 6:53
7
Can every diagonalizable matrix be diagonalized into the identity matrix?
jan 30 at 5:18
6
Are there two $\pi$s?
14h ago
6
dimension of a coordinate ring
mar 27 at 18:27
6
If $(\pm x)^2 = X$ then $\sqrt{X} = x$?
mar 27 at 16:22
6
$B \subset A$ and dim $A$ = dim $B$ means $A$ an integral extension of $B$?
mar 25 at 22:00
6
An odd proof of the uncountability of the reals
mar 22 at 19:23
6
Contradiction in the rules regarding determinants and row operations?
mar 21 at 18:00
6
Ring of invariants of Klein Four group
feb 8 at 17:07
5
What could be better than base 10?
may 12 at 3:23
5
Each affine transformation $\mathbb{R}^n \rightarrow \mathbb{R}^n$, wose derivative doesn't have eigenvalue 1, has a fixed point
apr 15 at 15:12
5
$\lim _{n \rightarrow \infty }a_{n}=\sqrt{a_{n-2}a_{n-1}}$ , $a_1=1, a_2=2$
mar 25 at 7:14
5
Homogeneous elements and graded algebra - any misconception?
mar 22 at 15:16
5
Intersection of a Collection of Sets
mar 7 at 19:03
5
Is a covering space of a manifold second countable?
feb 28 at 7:05
5
Ideals in a ring with identity
feb 22 at 18:39
5
Is $\int\limits_{-a}^{0} f(x)\,\mathrm{d}x = \int\limits_0^a f(-x)\,\mathrm{d}x$ true?
feb 20 at 0:04
5
Notation of functions which get a element of a pair
feb 19 at 23:59
5
Spanning tree with disconnecting set
feb 12 at 6:19
5
Where does the word “torsion” in algebra come from?
feb 11 at 21:49
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