
Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 09:24 AM
micromass

1 
36,204 
I found this problem on the MIT OpenCourseWare website, but a solution was not given. I tried it out, so I was...

Jul3105 01:20 PM
amcavoy

4 
1,506 
Does anyone know a good website, or have a PDF file that gives a good introduction to congruencies? I can't seem to...

Aug605 04:22 PM
symplectic_manifold

1 
1,295 
I just have one question about the proof. Why does (p1)!a^{p1}=(p1)!\pmod{p}? It seems like it would be true if...

Sep1005 08:54 PM
amcavoy

5 
9,356 
Find the general solution to the following system of equations and indicate which variables are free and which are...

Sep2412 09:03 PM
Simon Bridge

1 
844 
Hello,
So I'm trying to understand the construction of the tensor product of 2 vector spaces as stated in the...

Dec1808 05:05 PM
mathwonk

1 
931 
I have these questions on my studyguide and I know both of them are false. I just don't have a good counterexample or...

Mar1712 04:38 PM
Alesak

5 
1,345 
How do I show that for any vectors u,v, and w in a vector space V, the set of the vectors {uv, vw, wu} is a...

Mar1912 11:39 AM
HallsofIvy

6 
2,994 
Hi
When we have f(n) \in o(g(n)) and g(n) \in O(H(n))
Can I proove that h(n)f(n) \in o(g(n))?
Obviously I...

Sep912 05:48 PM
ammoun

3 
1,713 
Does anyone know an algorithm for computing kronecker products of two matrices? It's probably not that hard, but I...

Apr2012 09:59 AM
oleador

2 
1,835 
math.stackexchange.com, but haven't got any responses, so I thought I'd try here]
I’m building a model in a 3D...

Mar1014 02:44 PM
chogg

2 
945 
Does an inverse exist for every quaternion under multiplication??

Feb2408 02:36 AM
d_leet

1 
3,046 
Im having trouble under stand the relationships between determinats, span, basis.
Given a 3x3 matrix on R3 vector...

May812 04:37 PM
am_knightmare

3 
1,123 
Are there any numbers that is not considered to be a subset of a complex number subset of
a + bi
Where a and b...

Jan912 07:55 PM
ohwilleke

3 
1,797 
Using vectors to Go from one point to another restricts us with merely orthogonal mathematics that pertain to our...

Feb812 03:02 PM
Anachronistic

0 
1,159 
Hello all,
I have a MATLAB Ax=b problem where A is a matrix generated from the eigenvalues/ vectors of another...

Feb706 01:32 PM
anaemic1

0 
2,870 
Dear all,
I want to find functional relationship between two datas set.How to find,it relation is...

May907 01:10 PM
madphysics

5 
1,118 
1. The problem statement, all variables and given/known data
How do I show that the cp is p(x)=x^n, dimA=n?
2....

Oct809 07:10 AM
trambolin

7 
5,157 
A long time ago I took a number theory course and really enjoyed it. At one point we were shown the proof for the...

Sep2810 09:19 PM
ramsey2879

1 
2,834 
Hello,
I was thinking about how to predict the order of an element a*b if the orders of a and b are known where a...

Mar109 04:59 AM
Citan Uzuki

2 
1,642 
Multiplication is defined as repeated addition.
3x5 = 5+5+5
How do we define 10/2?

Oct1503 12:05 AM
rolandmath

6 
6,774 
Hi
So I'm looking at presentations.
I think that I understand that the group that generates <a,ba^2,b^2> is Z/2 x...

Jan2310 10:15 AM
rasmhop

1 
832 
There are 4 vectors, all the same length  v1 = v2 = v3 = v4 = 1
I need to find greatest possible value for:...

Apr211 10:37 AM
andreass

0 
529 
I'm trying to find the number of different nonsingular matrices (nxn) over a finite field (order q). Any help would...

Nov3008 05:31 PM
andreitta

2 
5,886 
Hi everybody,
I am having an extremely hard time understanding a specific relationship that originates from the...

Nov710 03:20 PM
andresc889

2 
2,284 
Hi, I read that the general form of an inner product on \mathbf{C}^n is:
\langle \vec{x} , \vec{y} \rangle =...

Nov2210 08:38 AM
andresordonez

3 
2,214 
This isn't a homework problem, but something I was kicking around. Thus far it has worked for the first 20 primes I...

Jan2910 10:28 AM
CRGreathouse

11 
2,313 
Given a 4x4 nonHermitian matrix, is there any method I can use to prove the eigenvalues are real, aside from actually...

Jul1509 08:51 AM
andrewm

2 
1,442 
Prove that the sum of any two consecutive odd prime numbers can always be written as the product of three integers,...

Nov1210 08:43 PM
dodo

6 
2,502 
Hi. I might just have something here. Please let me know if you have any questions or comments. Thanks. Andy Lee....

Jan1510 08:27 AM
Andy Lee

48 
9,025 
Yes, the method uses a sieve, but the problem of endpoints has been overcome.
Let S=(..., 5, 3, 1, 1, 3, 5,...

Feb310 09:51 PM
CRGreathouse

20 
3,535 
Hi, I was just hoping for some suggestions for a good book to learn abstract algebra with. Specifically, I'd like a...

Jul2004 05:42 PM
phoenixthoth

7 
2,765 
Let B be a basis for a vector space V (with an uncountable dimension!) over a field F, and let K be a linearly...

Nov2707 12:15 AM
mathwonk

9 
2,057 
I am reading "The linear algebra a beginning graduate student ought to know" by Golan, and I encountered a puzzling...

Jun1008 07:59 PM
Hubert

7 
6,219 
My recent interest in using transfinite induction in linear algebra has led me to pose a new question. (I will use c...

Nov2407 02:48 PM
andytoh

7 
2,161 
I can't seem to figure this one out:
Question: Let D be a nonempty subset of a vector space V over a field F. Let...

Dec907 06:55 PM
andytoh

2 
2,616 
Let V be an inner product space whose inner product g is not positivedefinite but simply nondegenerate (Minkowski...

Dec2307 04:51 PM
andytoh

4 
2,818 
.............

Feb705 08:09 PM
andytran

0 
1,344 
I need some help with understanding the basics of Lie algebra theory. I suspect my problems are due to a fundamental...

Jan412 04:57 AM
naima

1 
1,148 
hi,
im having a bit of trouble understanding how to formulate rhis problem, can someone please help me?
the...

May1004 04:56 PM
mathman

3 
1,214 
hi,
Could someone please show me how these are a linear transformation please:
1) T(s u + r V) ...

May1704 05:05 AM
HallsofIvy

2 
2,355 