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| ``Re: Imaginary.html''
by drini on 2004-03-05 12:01:52 |
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| Yes, I meant 0 is both imaginary and real
(just like it's als integer, complex, rational, etc).
The purely imaginary vs imaginary I don't think it's standard (it's more matter of style for agiven prof or inside a school), but if you asked me , I would have guessed imaingary is real part = 0 (thus 0 is imaginary) and purely imaginary the complex part different from zero (so 0 wouldn't be purely imaginary)
I guess conventions vary in differents parts of the world.
But yes, I meant 0 is imaginary
f
G -----> H G
p \ /_ ----- ~ f(G)
\ / f ker f
G/ker f |
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