p-adic number field
Completing the rationals for the p-adic absolute value produces a field with nonarchimedean convergence. Compute digit expansions before studying its valuation ring and local-field extensions.
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Start here: Algebraic Number Theory (v3.08)
James S. Milne · Lecture notes · English · Free full text
Chapter 7 Absolute Values; Local Fields, Completions, Remark 7.24, Proposition 7.26 (valuation expansions), and Examples 7.27–7.29
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Algebraic Number Theory & Class Field Theory in the library · Preparation and skip guidance · Terminology and translation evidence