## New answers tagged iwasawa-theory

4
votes

Accepted

### A confusion about power series and p-adic measures

You are asking about substitution of one power series into another. This can be interpreted in two ways, which ultimately amount to the same thing (like two different ways of thinking about anything) ...

6
votes

Accepted

### Describing the Gamma-transform explicitly in terms of power series

This is a hard problem (and one which is easily overlooked by the unwary)! Just to be clear, I'll summarize (how I think about) the problem: as a relation between additive and multiplicative Fourier ...

2
votes

### Non-commutative knot invariants

Perhaps one can study non-commutative analogs of the Alexander
polynomial which will have significant knot theoretic applications as
well, and perhaps one can compute these in some examples. After all
...

3
votes

Accepted

### What's the class group of $\mathbb{Q}^{\mathrm{ab}}$?

From Armand Brumer, The class group of all cyclotomic integers:
As an abelian group, $\mathrm{Pic}(O_\infty)$ is isomorphic to a countable direct sum of copies of $\mathbb Q/\mathbb Z$.
Here $O_\...

6
votes

Accepted

### Studying a connection between Iwasawa theory and the $K(n)$-local Picard group by some geometry on the Lubin-Tate stack

A long time ago there were various attempts to make this sort of approach work, but they were not very successful. If you want to try again then you should make sure that you are familiar with the ...

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