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  • 0 posts edited
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  • 485 votes cast
Jan
29
accepted Poisson bivector on the product of two manifolds
Jan
22
asked How to compute Casimir elements of $g \otimes g$?
Jan
21
comment How to solve the following system of partial differential equations?
thank you very much.
Jan
21
answered How to solve the following system of partial differential equations?
Jan
21
comment How to solve the following system of partial differential equations?
thank you very much. Your solution is excellent. There is a small problem. It seems that $u = \frac{4b^{1/2}}{3F'(t)}$.
Jan
21
accepted How to solve the following system of partial differential equations?
Jan
21
comment How to solve the following system of partial differential equations?
@JJacquelin, thank you very much. $u(a,b,c)$ and $y(a,b,c)$ are unknowns.
Jan
21
accepted Coordinate ring of $GL_2$.
Jan
20
asked Coordinate ring of $GL_2$.
Jan
20
revised How to solve the following system of partial differential equations?
edited body
Jan
20
comment How to solve the following system of partial differential equations?
@Bacon, yes, thank you very much. I will edit the post.
Jan
20
asked How to solve the following system of partial differential equations?
Jan
19
accepted Questions about delta function.
Jan
18
awarded  Popular Question
Jan
17
comment Questions about delta function.
thank you very much. In some papers of physics, they add the two series (for example, 3.48 and 3.50 implies 3.51 in the paper). Therefore I asked this question.
Jan
17
revised Questions about delta function.
added 4 characters in body
Jan
17
asked Questions about delta function.
Jan
8
comment How to prove the Weyl identity?
thank you very much.
Jan
8
comment How to prove the Weyl identity?
thank you very much. Why $e^A e^B e^{-A} = e^{e^A B e^{-A}}$?
Jan
8
accepted How to prove the Weyl identity?