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

Feb2313 09:24 AM
micromass

1 
30,465 
Can matrix representations of clifford algebras of type Cl(0,n) be found? Specifically for even orders

May211 08:21 PM
sjhanjee

2 
1,264 
One way to think about the seive of Eratosthenes is to imagine that after each pass, the nondeleted numbers are...

May211 02:45 PM
epsi00

2 
1,039 
Hello,
is there a straightforward way, or some wellknown expression to count how many ways there are of choosing N...

May611 03:06 PM
Edgardo

2 
5,072 
Concerning HardyLittlewood approximate functional equation for the \zeta function
\zeta(s) = \sum_{n\leq...

May811 08:41 AM
Simpel

2 
1,592 
Ok this question is in a cd quiz from a text book, i have no idea what the question even means or how to do it. Please...

May911 08:42 AM
HallsofIvy

2 
1,446 
sorry im new and posted instead of previewing...im currently writing the post

May1611 09:26 AM
saulg

2 
1,614 
Gday,
I was wondering if someone could tell what the nullity of an nxn zero matrix is? I can't decide if its zero...

May1411 11:19 PM
SprucerMoose

2 
2,335 
Hello,
I'm having difficulty understanding how to solve the following question using Sylow's Theorem:
Suppose G...

May1511 03:54 PM
Omukara

2 
1,583 
Can someone recommend me a 2nd year linear algebra textbook that is good for selflearning?
The course is linear...

May1511 05:14 PM
BingoGod

2 
1,523 
Given a linear tansformation T of a vector space V (over a field K) with eigenbasis {v_{1},....,v_{n}}, and a...

May1611 10:45 AM
dward1996

2 
1,642 
I have a general sort of structural question. I have been reading a lot of maths papers lately, and it seems there...

May2011 05:41 PM
icantadd

2 
1,082 
Hey
Im having trouble of how to go about this. Afterwards we have to perform some Cramers rule operations however...

May2111 09:32 AM
nick484

2 
1,595 
Hello everyone, I'm new to PF, so I hope this post is in the correct location.
Anyway, does anyone know why one...

May2211 11:28 AM
tinytim

2 
1,557 
Hi folks,
If I have a Lie algebra \mathfrak{g} with an invariant (under the adjoint action ad of the Lie algebra)...

Jun1411 11:50 AM
SergejVictorov

2 
1,301 
T is a linear operator from the space of 2 by 2 matrices over the complex plane to the complex plane, that is
T:...

May3111 12:16 PM
HallsofIvy

2 
3,355 
It's my understanding that algebraic numbers are the roots of polynomials with rational (or equivalently integer)...

May3011 08:35 PM
pwsnafu

2 
1,671 
Hello,
I have a row vector defined as,
X=\{x_1,x_2,\ldots,x_L\}
I wish to "stack" this vector vertically, a...

Jun311 10:07 PM
hadron23

2 
1,653 
I'm having trouble showing that any normal linear transformation T is the sum of a selfadjoint transformation T1 and...

Jun511 03:54 PM
Alupsaiu

2 
1,864 
Greetings. This is my first post, please be gentle!
I am a music theorist who uses a lot of math in my...

Jun611 07:33 PM
tuttlerice

2 
1,485 
I have two systems of linear differential equations: \frac{dx}{dt}=Ax, \frac{dy}{dt}=By
x,y are vectors of length n...

Jun1011 06:00 PM
Leo321

2 
742 
* I have already posted this in the General Math, but I guess the problem is more like a linear algebra problem.
...

Jun911 04:41 AM
samuelandjw

2 
981 
Arg\xi (1/2+iz)
however i am a bit ashamed because the Riemann Xi function is real for real 'z' so for ALL the...

Jun1111 04:35 PM
zetafunction

2 
1,676 
Hi, Algebraists:
Say I'm given a group's presentation G=<XR>, with
X a finite set of generators, R the set of...

Jun1811 07:13 PM
Bacle

2 
1,054 
polynomial?
i find this but i do not understand;its too complex.
...

Jun1111 07:16 AM
feynman137

2 
2,185 
Hi,
I have this problem,
1) Find 1 + 2 + · · · + n by summing the identity (m + 1)2 − m2 = 2m + 1 from m = 1 to...

Jun1211 10:31 PM
bluemoon2188

2 
1,764 
Suppose that the set of functions \{P^a:\mathcal S\rightarrow \mathcal L\,a\in \mathcal L\} has the property that for...

Jun1111 07:26 PM
Fredrik

2 
621 
For two matrices A and B, when p(A)=0 iff p(B)=0 for any polynomial, what will happen? i read that A and B have the...

Jun1311 02:13 PM
HallsofIvy

2 
1,194 
Hello all :)
I am studying divisibilities of
1, 11, 111, 1111, 11111 and so on
when I have even number of 1s, in...

Jun1311 08:46 PM
l1jcho

2 
1,499 
I have a nonhomogeneous Ax=b (with b nonzero) and i want to know if the set of all the solution vectors, x, forms a...

Jun1411 04:03 AM
td21

2 
2,161 
I came across this question. How do you show that √N is irrational when N is a nonsquare integer?
Cheers.

Jun1611 07:12 AM
bgwyh_88

2 
2,169 
I have a question I need to resolve before my exam on thursday. It relates to the following result:
Let N be a...

Jun1411 01:25 PM
Zorba

2 
948 
The prime number theorem describes the distribution of the prime numbers, in a sense. Are there other prime number...

Jun1511 08:12 PM
hansenscane

2 
1,708 
I'm wondering why 1/k! is needed in Alt(T), which is defined as:
\frac{1}{k!}\sum_{\sigma \in S_k} \mbox{sgn}\sigma...

Jun1811 10:13 PM
mathwonk

2 
1,135 
Is saying \existsx, \existsy
the same as saying \existsy, \existsx?

Jun1711 10:54 PM
gmmstr827

2 
1,614 
i have ordered introduction to linear algebra by gilbert strang.But i saw it on google books and found it to be...

Jun1811 09:53 PM
mathwonk

2 
2,388 
Sorry if this is a well known thing, but I've noticed this and decided to see how well known it is, also if there is a...

Jun1911 10:14 PM
Antiphon

2 
2,552 
Hi, All:
Could someone please tell me or give me a ref. on the basic properties of
Gl(n,R) ; R a ring;...

Jun2011 08:34 PM
Bacle

2 
1,436 
So Sylow's second theorem tells us that if G is a group, p a prime, and H,K are both pSylow subgroups, then \exists...

Jun2211 11:36 AM
Kreizhn

2 
1,248 
I don't understand how order 1 alternating tensors fit the definition of alternating tensors. I think the order has to...

Jun2311 04:20 PM
mathwonk

2 
1,294 
I wanted to make clear just a quick technical thing. If G is a group, N is a normal subgroup, and \phi_g \in...

Jun2411 01:30 PM
Kreizhn

2 
1,319 