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比利时vs摩洛哥足彩
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比利时vs摩洛哥足彩
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university of california san diego
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math 209 - number theory
peter stevenhagen
universiteit leiden
galois groups as arithmetic invariants
abstract:
every number field comes with a whole array of associated invariants such as its class group, zeta function, adele ring, absolute galois group, etc. i will discuss to which extent such invariants characterize the number field and, in case they don't, how easily one can obtain non-isomorphic number fields for which such an invariant is "the same".
host: cristian popescu
february 7, 2013
1:00 pm
ap&m 7321
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