 Iwasawa theory (source code)

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= Iwasawa theory
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Iwasawa theory studies arithmetic objects in infinite towers of <number fields>, often <Zp-extensions>. Passing to inverse limits turns growing <ideal class groups>, unit groups and <Galois groups> into <modules> over an <Iwasawa algebra>. Their algebraic ranks and characteristic ideals organize the growth and relate it to <p-adic L-functions>.

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