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

Feb2313 09:24 AM
micromass

1 
46,208 
Please anyone out there, I need your assistance. I am trying to follow the Lebesgue differentiation theorem in Riesz &...

Mar2106 05:25 PM
Castilla

16 
3,306 
Let,s suppose we have the integral:
\int_{\infty}^{\infty}dxF(x)
but unfortunately we have a problem..the...

Mar2106 11:36 AM
eljose

3 
1,206 
I was wondering if one of the approaches to proving the RH involves limits of mobius transformations of the zeta...

Mar2106 10:17 AM
shmoe

5 
1,192 
Hello it has been more than three months since i don,t post now here are my questions...:rolleyes: :rolleyes:...

Mar2106 05:56 AM
eljose

5 
1,886 
i need to mark statements below true or false and justify.
a) every nonempty finite set is compact.
since a finite...

Mar2006 09:53 PM
leon1127

5 
2,139 
In vector analysis, it is possible to express the \nabla operator in terms of a frame\{\mathbf{e}_1, \mathbf{e}_2,...

Mar2006 02:01 PM
kryptyk

0 
3,993 
For some reason I just have a problem with these types of integrals..if someone could show me how to do one it would...

Mar2006 07:10 AM
VietDao29

2 
974 
Is asymptote the visualization of limit?

Mar2006 06:28 AM
HallsofIvy

3 
1,155 
Say for example, to differentiate x/(x²+1) I would use to quotient rule. However, would it be legal to bring up the...

Mar1906 11:06 PM
leon1127

3 
4,922 
what is the proper method for finding the average of an integral? For example, the question I'm trying to answer is...

Mar1906 10:48 PM
Flatland

5 
1,906 
Can someone break down these theorems for me please because my book is horrible at explaining them. The examples the...

Mar1906 10:31 PM
mathwonk

30 
3,269 
I have a nonhomogeneous DE and wants to find the particular solution for Asin(x)sin(t)
Is there any tips in using...

Mar1906 07:42 PM
overseastar

4 
2,049 
I'm trying to understand something. Derrivatives are basically the same as differentials. The both apply to the...

Mar1906 06:36 PM
Hurkyl

4 
987 
Let,s suppose we have a functional J and we want to obtain its extremum to obtain certain Physical or Math properties:...

Mar1906 03:57 PM
eljose

0 
2,279 
Let,s suppose we have the next integral:
\int_{ci\infty}^{c+i\infty}dsF(s)e^{sx}
with c a real number..of...

Mar1906 08:41 AM
shmoe

4 
1,578 
I was wondering if it would be possible to find the average value of a function with the only condition that x is...

Mar1806 01:24 PM
hypermonkey2

9 
3,775 
I'm glad to see that the physics forum website is back online.
Suppose you have a function with double poles...

Mar1806 10:52 AM
Edwin

8 
2,361 
Newton's second law is insufficient to describe the motion of a particle. In addition, it requires a value for F,...

Mar1606 08:16 PM
WARGREYMONKKTL

4 
1,724 
I have a force and need to find the potential, but I'm stuch at a point. Any ideas how to integrate this: ...

Mar1506 05:34 PM
samalkhaiat

7 
1,223 
Good Morning.
I am reading the first pages of the "Lessons of Functional Analysis" of Riesz and Nagy, because I...

Mar1406 08:06 AM
Castilla

0 
2,912 
Hey folks,
I'm currently studying sequences and the like in Calc 2, and I went to Wikipedia for another...

Mar1306 11:52 PM
Weather Freak

7 
2,430 
Today, I had the desire to construct a C^{\infty} approximation to a tent function. Specifically, for any positive...

Mar1306 11:39 PM
Hurkyl

5 
1,671 
HI
I AM A STDENT WHO REALLY EXCITED OF PHYSICS. ESPECIALLY A BOUT THE MATHS THAT APPLIED IN PHYSICS.
SOMEBODY SAYS...

Mar1306 07:51 AM
WARGREYMONKKTL

14 
1,547 
let me start by saying that I'll be asking a lot of questions here soon as I'm preparing for a Calc BC AP test and I'm...

Mar1306 06:59 AM
VietDao29

5 
4,503 
Is the integral (in the interval x=0, x=1) of 1/ (x^x) dx = 1+(1/(2^2)) + (1/ 3^3))+(1/(4^4) ).... ?
If it is, how...

Mar1106 07:08 PM
DeadWolfe

1 
984 
Does someone has read Royden's Real Analysis?
If so, please tell me if he teachs Lebesgue integration by way of...

Mar1006 08:31 AM
Castilla

2 
2,024 
Given \zeta (s) = \sum_{k=1}^{\infty} k^{s} which converges in the halfplane \Re (s) >1, the usual analytic...

Mar1006 03:35 AM
benorin

3 
2,541 
I'm working on understanding the following relation which was referenced in the Number Theory Forum some time ago:
...

Mar806 08:54 PM
saltydog

22 
2,726 
hi:
I am faced with an integration problem and cant seem to get even Maple/Mathematica to solve it. Would really...

Mar806 05:16 PM
topsquark

1 
979 
\int \frac{dx}{\sqrt{1/x + C}} where C is a constant. Any ideas?

Mar806 12:55 PM
misskitty

18 
2,236 
Hi,
I am new here, but apparently there are some decent mathematicians around, so I would like to confront you with a...

Mar706 12:52 PM
Hendrik

9 
2,252 
I'm trying to understand how to interpret multidemensional limits. For example, suppose you have the following:
...

Mar606 06:56 AM
HallsofIvy

2 
3,083 
Okay, these might be better off in two separate threads but...they are somewhat related I suppse.
Anyway, I would...

Mar506 01:25 AM
Tide

5 
2,119 
Describe the image under exp of the line with equation y = x. To do this you should find an equation (at least...

Mar206 07:40 AM
shmoe

2 
2,017 
Say, E is dependent to x,y,z. I'm expecting it's derivative at x_0,y_0,z_0 to be
dE = \lim_{\substack{\Delta...

Mar106 03:30 PM
jackiefrost

7 
2,471 
Just came across a question today with 2^x and realised i didnt know how to differentiate it. The entire function i...

Mar106 10:05 AM
VietDao29

13 
4,151 
Let A and B be compact connected subsets of the plane, homeomorphic to one another. Are their complements...

Feb2706 05:44 PM
AKG

7 
1,954 
After stating the Weierstrass Mtest for series of complex functions and the "f_n continuous and uniformly convergeant...

Feb2706 01:13 PM
quasar987

4 
1,281 
I am writing my senior thesis (I am an undergrad math major at UCSB) on Dirichlet Series, which are, in the classical...

Feb2706 10:12 AM
shmoe

4 
1,839 
Consider p_n(z) and q_d(z) two polynomials over \mathbb{C}, which can be factorized like so:
p_n(z) = a_n...

Feb2706 07:08 AM
shmoe

14 
1,326 