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

Feb2313 09:25 AM
micromass

1 
26,567 
Hi,
Bernoulli's/Newton's classic elastica equation is of the form:
1) curvature = dθ/ds
The RHS reforms to...

May3012 04:49 AM
hushish

6 
1,503 
So the radius of curvature has a neat geometric "radius of a circle that best approximates the curve" property, but...

May2912 08:19 PM
Kidphysics

0 
1,230 
I am trying to familiarize myself with the use of fibre bundles and associated bundles but am having some problems...

May2912 05:45 AM
n.evans

0 
935 
I have looked at the definition of the metric tensor, and my sources state that to calculate it, one must first...

May2812 08:06 AM
lavinia

17 
2,864 
I've been trying to calculate the Riemann Curvature Tensor for a certain manifold in 3dimensional Euclidean Space...

May2812 07:53 AM
lavinia

1 
1,001 
Consider the velocity vector v^i=\dot{x}^i \hat{e}_i .
We know that in the plane polar coordinates,it becomes ...

May2812 02:05 AM
haruspex

7 
1,615 
I found the answer and the question now is embarrassing.

May2812 12:05 AM
algebrat

1 
1,192 
I am trying to learn about Holonomy groups. My objective is to read Submanifolds and Holonomy from Berndt, Olmos and...

May2712 09:05 PM
LightKage

2 
1,330 
I was wondering how the indices of tensors work. I do not understand how the indices of tensors in can be used. For...

May2612 08:09 AM
HallsofIvy

3 
1,481 
I am reading Martin Crossley's book  Essential Topology  basically to get an understanding of Topology and then to...

May2412 05:59 PM
Jamma

5 
1,719 
I'm just curious. Let's say a trail designer who works for a Boy Scout camp wants to build two trails that connect...

May2412 11:07 AM
Vargo

9 
1,953 
I have a simple geometry question hopefully I'm posting this in the right forum. I want to draw a simple logarithmic...

May2412 01:12 AM
haruspex

2 
2,751 
Hello all,
I have been trying to figure out a clear rule for parallel propagating vectors on spheres, such as in...

May2312 06:43 AM
lavinia

13 
2,254 
How to compute \chi(\mathbb{C}\mathrm{P}^2)?
This problem is from a class on differential topology, so we have...

May2312 12:13 AM
mathwonk

7 
1,733 
I'm looking for a 'covering rectangle with smaller rectangles' algorithm with the unique feature of being able to...

May2212 06:03 PM
the_anomaly

2 
1,336 
Hello! I have a question regarding the tangentvector belonging to a parameterized curve, at a certain point p.
Lee...

May2212 04:24 PM
Kontilera

2 
1,227 
Hi all,
I am thinking that, A surface is a minimal surface if and only if the mean curvature is zero. then, for a...

May2112 02:53 PM
Vargo

6 
1,886 
Hi,
I'm having trouble interpreting projective transformations. Let's confine ourselves to the projective plane...

May2012 02:22 PM
mathwonk

5 
1,591 
As the title suggests, we know from the AbelRufini theorem that 5th order equations cannot be solved using radicals....

May2012 12:31 AM
Stephen Tashi

1 
1,202 
Is there a way to convert a rational bezier curve to a piecewise series of one or more polynomial bezier curves with...

May2012 12:28 AM
ChaosMageX

0 
1,229 
Let r and a each be a position vector of a point on a plane. Let n be the normal to the plane.
The normal equation...

May1912 03:06 PM
Mandlebra

8 
1,880 
I want to show that the energy displacement of Z^{2n}(r), the 2ndimensional cylinder with radial radius is at most...

May1912 01:41 PM
MathematicalPhysicist

1 
928 
Given the function:
w=\sqrt{(z5)(z+5)}
which is fullyramified at both the finite singular points and at infinity,...

May1912 06:38 AM
jackmell

8 
1,786 
I would like to read more about this version of simplicial homology and cohomology. Any reference or explanation is...

May1812 06:02 PM
mathwonk

23 
2,664 
The plot below is a horn torus. Is that a valid genus1 normal Riemann surface? I believe it is but I'm just a...

May1812 06:43 AM
jackmell

2 
1,268 
With the help of a few of my friends, we made a problem and was wondering if it is valid.
**THIS IS NOT HOMEWORK**
...

May1712 07:46 PM
Cyclopse

0 
1,146 
in the appendix on Group Theory in Zee's book there is a discussion of commutations for SO(3)
two questions
...

May1712 01:50 PM
BWV

1 
1,222 
Hi all,
I am working through Visser's notes...

May1612 08:44 PM
ianhoolihan

24 
2,727 
Hi.
I really need an maple program example that solve tensor. Plz help me

May1512 09:19 AM
phinds

1 
1,168 
Dear all,
I am a medical doctor stuck with a mathematics problem. I have taken a project to map the 3D movement of...

May1412 07:43 AM
yasith

11 
1,794 
hello EveryBody,
In the 3D Coordinates I always find 4 parameters instead of 3.
A = (X, Y, Z, 1)
I wonder...

May1312 08:58 AM
HallsofIvy

2 
1,083 
Hello,
I've been looking for solved exercises on graph connectedness, but I can't find any. I'm supposed to compose...

May1212 01:36 PM
Deimantas

1 
1,009 
Hello, I have a question regular values and smooth homotopies. Usually in giving the definition of regular value, they...

May1112 12:49 PM
Sina

4 
1,156 
We say a point x in X (which is a topological space) is an accumulation point of A if and only if any open set...

May1112 12:30 PM
micromass

3 
1,469 
Hi all,
I am trying to follow the derivation by Carroll of the parallel propagator in these notes, beginning page...

May1112 03:45 AM
chiro

3 
1,163 
Been having trouble with connectedness. Tried out a problem to practice and not sure how to finish it.
The problem...

May1012 09:24 PM
DonAntonio

1 
1,039 
I was told the space S^3 is isomorphic to the set of all 2 component spinors with norm 1 (see...

May1012 08:36 AM
Spinnor

3 
1,371 
Hi all,
I'm trying to figure out the link between the connection coefficients (Christoffel symbols), the...

May1012 05:04 AM
TrickyDicky

5 
1,405 
Definitions of a rigged Hilbert space typically talk about the "dual space" of a certain dense subspace of a given...

May912 08:24 PM
Rasalhague

5 
1,415 
Hi,
Can someone here help me understand how to illustrate maps of analyticallycontinuous paths over algebraic...

May812 08:39 AM
jackmell

5 
1,723 