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

Feb2313 09:24 AM
micromass

1 
35,124 
http://vixra.org/abs/1007.0005
using the semiclassical theory of quantum `physics i manage to give a Hamiltonian...

Jul311 07:20 AM
zetafunction

0 
1,708 
I have a small problem where I remember I learned it in the past. But now I can't seem to recall how to do it. I...

Jul111 09:13 PM
Yondaime5685

7 
1,486 
Does anyone know where can i find the proof that the Selberg Zeta function has ALL its zeros on the critical line ??
...

Jul111 06:15 AM
zetafunction

0 
1,688 
Let me explain further my question by what i mean 'operation'. An 'operation' can be on a single number, example...

Jun3011 04:51 PM
agentredlum

34 
6,290 
in some work i'm doing i have a 2D rectangle that can be rotated and/or translated in any direction in 2D space. for...

Jun2911 11:39 AM
xovangam

11 
3,162 
Hi, the following linear algebra question is causing trouble for me:
For which values of k does the following...

Jun2811 08:11 PM
jberg074

6 
4,508 
I've already post this, but i've done it in the wrong section!!
So here I go again..
I've a doubt on the way the...

Jun2811 08:44 AM
teddd

12 
3,721 
I am trying to solve a problem with spacetime metrics and a change of coordinates for my research project.
I have...

Jun2711 07:12 PM
HallsofIvy

1 
955 
Hi, we know that for all interger m, n_1!\cdots n_k! divides m! where n_1+\cdots+n_k=m.
Now I want to show that m!...

Jun2711 03:06 PM
micromass

5 
2,153 
In this field, computer algorithms may produce false continued fraction expansions because of
the limited accuracy...

Jun2711 02:56 PM
KevB

6 
3,644 
So a number of mathematicans showed that an odd perfect number is not divisble by either 3, 5,or 7. I tried really...

Jun2711 11:26 AM
mathwonk

3 
2,759 
Is it true that any linear map between two arbitrary finitedimensional vector spaces is continuous? Is it...

Jun2611 09:57 PM
mathwonk

4 
2,600 
Hi all,
I'm trying to find the integer solutions for
6n^2 18n +16 = m^2
using pell equation, any idea
...

Jun2611 03:28 PM
epsi00

10 
2,208 
A lattice is a partially ordered set such that every finite set has a least upper bound and a greatest lower bound....

Jun2611 09:26 AM
Fredrik

3 
1,202 
I'm curious why people develop these objects. Although I've seen some proofs of theorems using coset(or quotient space...

Jun2611 01:04 AM
kof9595995

6 
2,036 
According to duality principle, a bilinear function \theta:V\times V \rightarrow R is equivalent to a linear mapping...

Jun2511 07:42 AM
micromass

3 
1,737 
Hey there
I would just like some help in rearranging the formula:
z=\frac{1+\frac{v\cos...

Jun2411 02:52 PM
Pretty Pony

2 
1,473 
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 
1,420 
The matrix giving the relation between spherical (unit) vectors and cartesian (unit) vectors can be expressed as:
...

Jun2411 05:29 AM
nceba

4 
1,492 
http://www.math.northwestern.edu/~clark/285/200607/handouts/linconstraint.pdf
It's actually proof of finding...

Jun2311 09:37 PM
holemole

1 
1,683 
I know that the nth Fibonacci number is defined as:
\frac{{1+\sqrt{5}}^{n}{1\sqrt{5}}^{n}}{{2}^{n}\sqrt{5}}
...

Jun2311 07:35 PM
dimension10

4 
6,605 
In some exercises I've stumbled upon a function which is denoted \gamma_{m}(n) with m,n natural. I've no idea what is...

Jun2311 04:36 PM
Hurkyl

3 
1,696 
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 
1,372 
Limiting ourselves to N...
Conjecture:
(sqrt (16x + 9)  1)/2 = y  2y^2 + 2y  3 = z^2
for x = a Sophie...

Jun2311 02:23 PM
ramsey2879

25 
7,891 
Reading about the general rotation of a single qubit, a rotation of \theta in the horizontal plane and \phi) in the...

Jun2311 01:06 AM
nomadreid

0 
1,920 
I need to understand physics (and other) concepts but I'm having trouble visualizing what the equations mean.
One...

Jun2211 10:13 PM
jimgavagan

3 
2,129 
I am doing my Extended essay about the maths involved in calculating your position using the GPS. I am reading a very...

Jun2211 03:36 PM
jbunniii

4 
4,681 
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 
1,320 
Hello all,
I'm a freshman undergraduate (UCLA) and have finished my study lower division calculus (multivar, diff...

Jun2211 01:07 AM
Bill Simpson

9 
3,243 
I have two questions and I hope it is acceptable...Seemingly unrelated, though I came to wonder about the first while...

Jun2111 02:42 PM
micromass

3 
1,935 
I have noticed something strange when you take the value of sin(pi*10^n). It approaches pi*10^n. I have attatched...

Jun2111 10:53 AM
micromass

3 
2,460 
Let q be an odd prime power. Let n be the multiplicative order of q modulo t, where t is even and t > 4. What are the...

Jun2111 09:24 AM
burritoloco

0 
1,348 
Why is the Trace of a projection is its Rank.
Thank you

Jun2111 03:21 AM
micromass

3 
2,977 
Let q be an odd prime power. Let n be the multiplicative order of q modulo t, where t is even and t > 4. What are the...

Jun2111 02:29 AM
burritoloco

0 
1,236 
I was hoping you guys could help me in understanding some vector spaces of infinite dimension. My professor briefloy...

Jun2111 12:11 AM
mscudder3

7 
4,414 
Is it true that every matrix is similar to its transpose? A claim in Wikipedia...
(field is alg. closed)

Jun2011 10:27 PM
arthurhenry

4 
1,813 
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 
1,493 
My understanding of Lie groups is nonexistent.
But I'm trying to understand if the Leech lattice is a 'lie group?"

Jun2011 02:55 PM
Aztral

4 
1,553 
A nonzero alternating tensor w splits the bases of V into two disjoint groups, those with \omega(v_1,\cdots,v_n)>0...

Jun2011 02:18 PM
micromass

1 
1,222 
Other than the Eucledean method
(1+p1p2p3...)and so on
other than this, how do we prove that there are infinte...

Jun2011 11:46 AM
disregardthat

10 
2,981 