On the Iwasawa algebra for pro-l Galois groups

Irene Lau

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arXiv · 1011.5497

On the Iwasawa algebra for pro-l Galois groups

Irene Lau

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Abstract

Let l be an odd prime and K/k a Galois extension of totally real number fields with Galois group G such that K/k_\infty and k/Q are finite. We give a full description of the algebraic structure of the semisimple algebra QG=Quot(ΛG) for pro-l Galois groups G with ΛG = Z_l[[G]] the Iwasawa algebra. We moreover compute the cohomological dimension of the centres of the Wedderburn components of QG and state some results on the completion of QG.

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Irene Lau. 2010-11-24. On the Iwasawa algebra for pro-l Galois groups. https://arxiv.org/abs/1011.5497

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