I am interested in special relativity .
Okay , the thing is I am currently an undergraduate in electrical 
engineering . I had a basic course on special relativity .
I don't know about Minkowski space and stuff . I was thinking of starting 
with simple stuff in relativity. You are saying that 
as soon as tensor thing is done , you can easily implement relativity . 

I basically need some project ideas to work on . It can be anything 
existing or anything new . Can you provide me with 
some ideas to work upon . 

On Wednesday, May 14, 2014 12:54:47 PM UTC+5:30, F. B. wrote:
>
>
>
> On Wednesday, May 14, 2014 8:41:35 AM UTC+2, Abhishek K Das wrote:
>>
>> I was checking the physics module and saw there is nothing on 
>> relativistic mechanics as of now . 
>> Is anyone working on that ? I would like to contribute in that or 
>> otherwise start implementing it . 
>>
>
> Are you interested in special relativity or in general relativity? And 
> especially, what abstraction depth are you planning to reach?
>
> For special relativity, Lorentz transformations could be implemented as 
> matrices acting on vectors. Lie algebra elements could be represented as 
> matrices and then exponentiated. Similar work for spinor representations. 
> But in that case you would still working in a fixed basis of the Minkowski 
> space, while it would preferable to have a base-independent formulation in 
> a CAS.
>
> As for general relativity, there is the sympy.diffgeom module which could 
> help. Here an example of the Schwarzschild solution from the GSoC 2012: 
> http://krastanov.files.wordpress.com/2012/07/schwarzschild.pdf
>
> In any case, I am currently trying to refactor sympy.tensor.tensor in 
> order to allow operator formalism on tensors with abstract index notation. 
> I will still take some times (probably months), but as soon as it is 
> finished, it will be much easier to reason about relativity and quantum 
> field theory.
>
> The abstract index notation means that indices are not the component 
> number, but rather contain information on which representation of which Lie 
> algebra that component transforms.
>

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