Generalized Robba rings

Details Generalized Robba rings Generalized Robba rings

2010-06-24

arxiv.org/abs/1006.4690v3

Mathematics

Representation Theory

with an appendix by Peter Schneider; revised; new title

Scientific paper

We prove that any projective coadmissible module over the locally analytic distribution algebra of a compact $p$-adic Lie group is finitely generated. In particular, the category of coadmissible modules does not have enough projectives. In the Appendix a "generalized Robba ring" for uniform pro-$p$ groups is constructed which naturally contains the locally analytic distribution algebra as a subring. The construction uses the theory of generalized microlocalization of quasi-abelian normed algebras that is also developed there. We equip this generalized Robba ring with a self-dual locally convex topology extending the topology on the distribution algebra. This is used to show some results on coadmissible modules.

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