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I am a physics undergrad with interests in theoretical physics and mathematics.


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asked Minkowski space is locally Euclidean?
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Jun
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comment Compact Lie algebras and Lie groups
From wikipedia (en.wikipedia.org/wiki/Compact_Lie_algebra) it seems I was wrong, but wikipedia defines the killing form to be negative definite.
Jun
13
comment Compact Lie algebras and Lie groups
I am not sure compact lie algebras and lie groups should be related, because locally compact and non-compact manifolds look the same.
Jun
12
revised An identity relating sum of number of partitions to sum of number of parts
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Jun
12
comment An identity relating sum of number of partitions to sum of number of parts
@Vladimir: sorry p and q are also co-prime.
Jun
12
comment An identity relating sum of number of partitions to sum of number of parts
@Vladimir: $p,q$ are integers greater than 0 such that their product is less than equal to $N$. Thanks for asking. Question edited.
Jun
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revised An identity relating sum of number of partitions to sum of number of parts
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Jun
12
asked An identity relating sum of number of partitions to sum of number of parts
Jun
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comment Spherical harmonics give all the irreducible representations of $SO(3)$?
@MattE: Can this be shown by some physical arguments?
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