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Trimester Seminar

Published online by Cambridge University Press:  05 August 2015

Luis Dieulefait
Affiliation:
Universitat de Barcelona
Gerd Faltings
Affiliation:
Max-Planck-Institut für Mathematik, Bonn
D. R. Heath-Brown
Affiliation:
University of Oxford
Yu. V. Manin
Affiliation:
Max-Planck-Institut für Mathematik, Bonn
B. Z. Moroz
Affiliation:
Max-Planck-Institut für Mathematik, Bonn
Jean-Pierre Wintenberger
Affiliation:
Université de Strasbourg
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Summary

January 8, Jeanine Van Order, Iwasawa main conjectures forGL(2) via Howard's criterion (abstract). In this talk, I will present the Iwasawa main conjectures for Hilbert modular eigenforms of parallel weight two in dihedral or anticyclotomic extensions of CM fields. The first part will include an overview of known results, as well as some discussion of open problems and applications (e.g. to bounding Mordell-Weil ranks), and should be accessible to the non-specialist. The second part will describe the p-adic L-functions in more detail, as well as the non-vanishing criterion of Howard (and its implications for the main conjectures).

January 15, Oliver Lorscheid, A blueprinted view on F1-geometry (abstract). A blueprint is an algebraic structure that “interpolates” between multiplicative monoids and semirings. The associated scheme theory applies to several problems in F1-geometry: Tits's idea of Chevalley groups and buildings over F1, Euler characteristics as the number of F1-rational points, total positivity, K-theory, Arakelov compactifications of arithmetic curves; and it has multiple connections to other branches of algebraic geometry: Lambdaschemes (after Borger), log schemes (after Kato), relative schemes (after Toen and Vaquie), congruence schemes (after Berkovich and Deitmar), idempotent analysis, analytic spaces and tropical geometry. After a brief overview and an introduction to the basic definitions of this theory, we focus on the combinatorial aspects of blue schemes. In particular, we explain how to realize Jacques Tits's idea ofWeyl groups as Chevalley groups over F1 and Coxeter complexes as buildings over F1. The central concepts are the rank space of a blue scheme and the Tits category, which make the idea of “F1-rational points” rigorous.

January 16, Jean-Pierre Wintenberger, Introduction to Serre's modularity conjecture (abstract). This lecture is intended for non-specialists. We state Serre's modularity conjecture and give some consequences and hints on its proof.

January 17, Henri Carayol, Realization of some automorphic forms and rationality questions (Part I) (abstract).

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Arithmetic and Geometry , pp. xiii - xxii
Publisher: Cambridge University Press
Print publication year: 2015

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