Abstract
We study the generalised Iwasawa invariants of
Acknowledgements
I would like to thank C. Greither for carefully reading a preliminary version of this article; I am grateful for his comments on the proof of the rank inequality in Section 3. Moreover, I am very grateful to the anonymous referee for suggesting several improvements of the proofs of Theorems 3.2 and 5.4; the exposition of the manuscript has profited considerably from the referee’s comments.
References
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