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Linear & Abstract Algebra

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Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
Feb23-13 09:24 AM
micromass
1 30,545
Im having trouble under stand the relationships between determinats, span, basis. Given a 3x3 matrix on R3 vector...
May8-12 04:37 PM
am_knightmare
3 1,017
Are there any numbers that is not considered to be a subset of a complex number subset of a + bi Where a and b...
Jan9-12 07:55 PM
ohwilleke
3 1,690
Using vectors to Go from one point to another restricts us with merely orthogonal mathematics that pertain to our...
Feb8-12 03:02 PM
Anachronistic
0 1,074
Hello all, I have a MATLAB Ax=b problem where A is a matrix generated from the eigenvalues/ vectors of another...
Feb7-06 01:32 PM
anaemic1
0 2,748
Dear all, I want to find functional relationship between two datas set.How to find,it relation is...
May9-07 01:10 PM
madphysics
5 1,066
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....
Oct8-09 07:10 AM
trambolin
7 4,922
A long time ago I took a number theory course and really enjoyed it. At one point we were shown the proof for the...
Sep28-10 09:19 PM
ramsey2879
1 2,724
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...
Mar1-09 04:59 AM
Citan Uzuki
2 1,524
Multiplication is defined as repeated addition. 3x5 = 5+5+5 How do we define 10/2?
Oct15-03 12:05 AM
rolandmath
6 6,668
Hi So I'm looking at presentations. I think that I understand that the group that generates <a,b|a^2,b^2> is Z/2 x...
Jan23-10 10:15 AM
rasmhop
1 780
There are 4 vectors, all the same length - |v1| = |v2| = |v3| = |v4| = 1 I need to find greatest possible value for:...
Apr2-11 10:37 AM
andreass
0 492
I'm trying to find the number of different non-singular matrices (nxn) over a finite field (order q). Any help would...
Nov30-08 05:31 PM
andreitta
2 5,542
Hi everybody, I am having an extremely hard time understanding a specific relationship that originates from the...
Nov7-10 03:20 PM
andresc889
2 2,170
Hi, I read that the general form of an inner product on \mathbf{C}^n is: \langle \vec{x} , \vec{y} \rangle =...
Nov22-10 08:38 AM
andresordonez
3 2,112
This isn't a homework problem, but something I was kicking around. Thus far it has worked for the first 20 primes I...
Jan29-10 10:28 AM
CRGreathouse
11 2,180
Given a 4x4 non-Hermitian matrix, is there any method I can use to prove the eigenvalues are real, aside from actually...
Jul15-09 08:51 AM
andrewm
2 1,354
Prove that the sum of any two consecutive odd prime numbers can always be written as the product of three integers,...
Nov12-10 08:43 PM
dodo
6 2,406
Hi. I might just have something here. Please let me know if you have any questions or comments. Thanks. Andy Lee....
Jan15-10 08:27 AM
Andy Lee
48 8,638
Yes, the method uses a sieve, but the problem of endpoints has been overcome. Let S=(..., -5, -3, -1, 1, 3, 5,...
Feb3-10 09:51 PM
CRGreathouse
20 3,276
Hi, I was just hoping for some suggestions for a good book to learn abstract algebra with. Specifically, I'd like a...
Jul20-04 05:42 PM
phoenixthoth
7 2,649
Let B be a basis for a vector space V (with an uncountable dimension!) over a field F, and let K be a linearly...
Nov27-07 12:15 AM
mathwonk
9 1,959
I am reading "The linear algebra a beginning graduate student ought to know" by Golan, and I encountered a puzzling...
Jun10-08 07:59 PM
Hubert
7 5,946
My recent interest in using transfinite induction in linear algebra has led me to pose a new question. (I will use c...
Nov24-07 02:48 PM
andytoh
7 2,064
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...
Dec9-07 06:55 PM
andytoh
2 2,511
Let V be an inner product space whose inner product g is not positive-definite but simply nondegenerate (Minkowski...
Dec23-07 04:51 PM
andytoh
4 2,747
.............
Feb7-05 08:09 PM
andytran
0 1,309
I need some help with understanding the basics of Lie algebra theory. I suspect my problems are due to a fundamental...
Jan4-12 04:57 AM
naima
1 1,072
hi, im having a bit of trouble understanding how to formulate rhis problem, can someone please help me? the...
May10-04 04:56 PM
mathman
3 1,187
hi, Could someone please show me how these are a linear transformation please: 1) T(s u + r V) ...
May17-04 05:05 AM
HallsofIvy
2 2,262
Question: Let T:V-->W and S:W-->U be linear transformation.Show that 1) If T and S are one-to-one,then ST...
May22-06 03:20 PM
ircdan
4 7,469
I am a visitor of this beautiful site, my name is Angelo Spina, I would like to resolve the three following problems,...
Jul7-05 10:38 AM
ramsey2879
4 1,158
Hi, We recently started analyzing linear machines using matrix algebra. Unfortunately, I haven't had much exposure...
Dec11-07 09:01 PM
quasar987
1 5,245
Check for Linear Dependence for: \sin \pi x I'm thinking it's Linear Dependent. Since it says that any linear...
Jan16-09 05:45 AM
HallsofIvy
5 2,442
Use some QR method to approximate the eigenvalues of and compare with the actual values. The actual values are...
Apr26-08 05:58 AM
HallsofIvy
1 1,399
a) If A is Symmetric show that A-λI is positive definite if and only if all eigenvalues of A are >λ, and A-λI is...
Apr26-08 10:43 AM
angelz429
2 2,264
I need help solving this problem: Use the McLaurin series for 1/(1+x) to show that I + N is invertible where N is...
Apr25-08 09:11 PM
Peeter
1 1,636
The sequence is 1,2,3,4,5,8,7,16,9 I am absolutely stumped and cannot fathom the answer. Normally I can see the...
Aug14-11 08:06 AM
agentredlum
1 2,988
Hello, The Mahalanobis distance or rather its square is defined as : (X-\mu)^2/\Sigma which is then written as ...
Nov11-13 12:20 PM
anja.ende
3 550
I have a symmetric NxNxNxN matrix that I need to find eigenvalues a eigenvectors for. All the BLAS routines are for...
Jul9-08 03:10 AM
WarPhalange
4 6,543
Can someones tells me how to prove these theorems. 1. Prove that if G is a group of order p^2 (p is a prime) and G...
Oct30-06 11:07 PM
mathwonk
2 6,576

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