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Mathematical Physicists


Sep
24
awarded  Autobiographer
Sep
22
comment Optimizing a rank 3 tensor
$F$ is not Hermitian in $u$ and $v$.
Sep
22
accepted Optimizing a rank 3 tensor
Sep
22
comment Optimizing a rank 3 tensor
That's a wonderful answer!!! My paper will see the sun soon, and you will definitely be among the acknowledged people. Thanks a mil...
Sep
22
comment Optimizing a rank 3 tensor
I agree, but the way I would use to write the program would take days of typing, perhaps there is a concise way of writing down the matrix that you can code here!
Sep
22
comment Optimizing a rank 3 tensor
@whuber If you mean write all the equations down, like expand for all the indices, then we are talking about 64 equations, which, to me, doesn't sound practical.
Sep
21
comment Optimizing a rank 3 tensor
@whuber $i$ in the formulas is the imaginary unit.
Sep
21
comment Optimizing a rank 3 tensor
@whuber Thanks for the comment. I'm just providing 16 entries. Example F_1^i={F_1^1,F_1^2,F_1^3,F_1^4}, which represents the first column in the 4x4 matrix.
Sep
21
revised Optimizing a rank 3 tensor
edited title
Sep
21
asked Optimizing a rank 3 tensor
Sep
21
awarded  Scholar
Sep
21
accepted Solving antisymmetric tensorial equation
Sep
21
comment Solving antisymmetric tensorial equation
Is it possible to write the code in different way such that it takes less time. I've been running the program since yesterday and still waiting. I think its because my F entries are complicated function of space. Also If, say, we suppress the condition of S being symmetric in the lower indices, would that decrease the time cost?
Sep
21
awarded  Supporter
Sep
20
awarded  Student
Sep
20
comment Solving antisymmetric tensorial equation
Thanks for your answer, Mathematica is running now your code. Hope it works. I logged in with my google account, does it mean I'm registered or I have sign up differently? (sorry for the silly question).
Sep
20
revised Solving antisymmetric tensorial equation
added 915 characters in body
Sep
20
comment Solving antisymmetric tensorial equation
@belisarius Thanks for your comments, I have a code that gives me $F$ which is an endomorphisms acting on the tangent space of some moduli space. I will update the questions with what I tried to do...
Sep
20
revised Solving antisymmetric tensorial equation
deleted 4 characters in body
Sep
20
revised Solving antisymmetric tensorial equation
added 21 characters in body