Ramification Group

(Algebraic Number Theory)


Algebraic Number Theory
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What is Ramification group?

In number theory, more specifically in local class field theory, the ramification groups are a filtration of the Galois group of a local field extension, which gives detailed information on the ramification phenomena of the extension.

Technology Types

algebraic number theory


Herbrand's theorem on ramification groupsHigher ramification groupLower numberingUpper numbering

Tech Info

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