# Search results for query: *

1. ### Partitions of unity

what are they exactly?
2. ### Exterior derivative

so where does the other thing come into play?
3. ### Exterior derivative

what i did was (p+dp)^(q+dq) -p^q. i evaluated that and got + p^dq +dp^q +dp^dq what do we do with that? Wher do the other parts come in? Again I'm sorry for my stupidity.
4. ### Exterior derivative

Oh no. it's simply the wedge product thing. anyway could you write out an example because i don' think I got that(unless i arranged the terms wrong which i rpobably did without noticing). I know this is stupid, but please do this for me. I know its weird and stupid... i'm awful with...
5. ### Exterior derivative

I was talking about the exterior derivative of a wedge product. It's suppose to be something like, p^dq +-1^p (q^dp) or something along those lines. how do we get that?> i know its silly but i really don't know how its proven.
6. ### Lie derivative

i was curious as to what exactly this is and more importantly, what motivates it. what are its applications?
7. ### Exterior derivative

So I did understand it. One last thing, I'm not sure if I understand the modified leibniz rule very well. could someone prove it rigorously? I'm talking about the liebniz rule between wedge products. I don't quite know how to prove it...:(
8. ### Exterior derivative

Well could someone explain why we impose the condition d(da)=0. I think I understand but would still like an explanation...
9. ### Exterior derivative

What exactly is the exterior derivative? What is its motivation? how do you compute it? Most importantly why is that how you copute it?
10. ### How to prove stokes theorem

It is probably beyond me at this moment as i don't know about those. I don't really mind. at least you were polite about it. so intuitively speaking it's just like the fundmanetal theorem? I don't think I'll be ready for awhile, but this boredom is really getting to me. I literally have...
11. ### How to prove stokes theorem

I was wondering as to how to prove stokes theorem in its general and smexy form.Also what is the intuition behind it(more important) aside from the fact that its a more general form of the other theorems from vector calculus?
12. ### Christoffel symbols examples

It's ok I'm fine now.
13. ### Christoffel symbols examples

Yes but could you still show me some examples, I'm not particularly comfortable with thses symbols.
14. ### Christoffel symbols examples

No but i know the euler lagrage equation.
15. ### Christoffel symbols examples

i'm having a hard time computing these so could people show me several examples to help me get a better feel for them before I move on to curvature?
16. ### Original motivation of differential geometry

What orginally motivated the field of differential geometry?
17. ### What is Covariant derivative

Care to explain Sean caroll's reasoning? That resource is too formal.
18. ### What is Covariant derivative

how does one derive the general formula for the covariant derivative of a tensor field? To be more precise I took out sean carolls book at the library but did not understand equation 3.17 on page 97. Could someone derive it or prove it, or at the very least give me a better hint?
19. ### What is Covariant derivative

Yes but I really think that if i am to understand this topic the right way, i need to find myself a math not book. Physics books are not really enough beyond the tensor analysis section, and I realize that things like connection exist for a reason. So i'll take the masochistic root. do you know...
20. ### What is Covariant derivative

Yah I know what it is now but computations with it seems nigh impossible. Ok this question is stupid, but can't we just use the chain rule to calculate the directional derivative of a tensor field in an arbitrary direction(byt that I mean can the directional derivative be written as a linear...
21. ### What is Covariant derivative

I've heard of something called a covariant derivative. what motivates it and what is it?
22. ### Differential geometry recommendations

what is a good book in differential geometry. I currently know calculus, a bit about differential equations, a bit of linear algebra and a bit about tensors. I also know some variational calculus. Of course what I know won't really help. I've skimmed through some physics sources and...
23. ### Prove a tensor product

do you think they would be irritated if I called them?
24. ### Prove a tensor product

That should be very interesting. The few moments I've had with mathematicians were the highlights of 2006! For now it won't be possible, becuase the university of toronto's math department contact page is inaccesbile. http://www.math.utoronto.ca/ check for yourself. i have however contacted...
25. ### Prove a tensor product

I've always wanted to meet a math professor of some sort. Unfortunately I have no idea how to.
26. ### Prove a tensor product

I've never found a resource on complex analysis, I am VERY interested in ANY introduction to rigorous mathematics.chern chem and lam? what's the book like? does it start with gaussian geometry or full blown generality? I'd actually prefer to study mathematics outside of physics but i can't...
27. ### Prove a tensor product

Ah ok I understand. Yes it's actually very simple now. It's just that when I was introduced to it, it was this weird alien symbol who's significance i could not grasp. I know I'm stupid. I have no illusions about that. Luckily I understand it now. As for gauss' law for inverse square...
28. ### Prove a tensor product

green's theorem says that the circulation is around an interval is equal to the sum of iinfintessimal circulations within the area. Say that you have a square, you can find the cxirculation around it through very simple methods. then put another square beside it and calculate it's circulation...
29. ### Prove a tensor product

anyway , I'm ok now, so i guess this thread oughta be closed.
30. ### Prove a tensor product

I know some university level classical dynamics, special relativitivistic kinematics and dynamics. I also know a bit of electromagnetism. That stuff was all pretty easy, though the complete lack of rigour that physicists use when explaining gauss's law is insulting. I know enough physics...
31. ### Prove a tensor product

Everything there but topology.
32. ### Prove a tensor product

Ok so right now my main problems are equation 3.24, which i'd like explained in more detail and the basis for the gradient one forms.
33. ### Prove a tensor product

Ok I get 3.12 but am still having trouble withthe material at the beginning of page 70. it would be nice if someone pmed me, but posting here would be OK. I'm really sorry btw. These are the few topics I've been having trouble with. i rarely ask things online. Please try to epxlian it to me...
34. ### Prove a tensor product

the sixteen component thing seems so obvious now. so what your saying is that the most general possible 0,2 tensor has sixteen components? That makes sense. however i don't understand the significance of the kronecker delta thing. that well at least. Oh wait. I'm still having a hard time...
35. ### Prove a tensor product

i'm not sure if i understand 3.12 properly. I'm not too well versed in the kronecker delta. I will give it a shot though. I think it means that the output can only equal the correspong components multiplied together IF the basis one form applied to the basis vectors equal some identity map...
36. ### Prove a tensor product

Ah that was just a simple misunderstanding. however there is another section i have a hard time with. It's on page 70. It's the part where they talk about the absis of the gradient one form. i don't quite understand what's being done. could you guide me through it step by step? I'm finding...
37. ### Prove a tensor product

It's on page 71.
38. ### Prove a tensor product

a first course in general relativity.
39. ### Prove a tensor product

most physics books say that the tensor product between two tensors is the most general higher order tensor. how can we prove this?
40. ### Prove a tensor product

How can we prove that the tensor product between two tensors of lower rank forms the basis for ANY tensor of higher order? also WHY is it it true? ANY TENSOR of higher order.
41. ### Gaussian geometry.

Can any resources on gaussian geometry be found on line?
42. ### The tensor product and its motivation

could someone please explain to me what the tensor product is and why we invented it? most resources just state it without listing a motivation.
43. ### The kronecker delta

Why is it important in tensor analysis?
44. ### The kronecker delta

I keep seeing this come up in relativity and tensor resources but I have no idea wht the heck it means. Could someone explain it to me?