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Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics Foundations of Mathematics Geometry History and Terminology Number Theory Probability and Statistics Recreational Mathematics Topology

Alphabetical Index New in MathWorld

Algebra
Group Theory
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Number Theory
Algebraic Number Theory

Decomposition Group

References

Koch, H. "Decomposition Group and Ramification Group." §6.1 in Number Theory: Algebraic Numbers and Functions. Providence, RI: Amer. Math. Soc., pp. 172-176, 2000.

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