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Ravi Ramakrishna, tell me about Wild and Tame Galois groups !

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Ravi Ramakrishna, tell me about Wild and Tame Galois groups !

19 février 2025 | 11h00 12h00

Absolute Galois groups have played a central role in most major breakthroughs in Algebraic Number Theory in the last half century. Typically the action of these groups is through an « almost pro-p quotient » with ramification at primes above p. For such groups the Poitou-Tate duality theorems are powerful. These theorems do not hold for pro-p groups unramified at primes above p. I will survey how this tame situation differs from the wild one above and introduce theorems of Labute and Schmidt which give situations where certain tame Galois groups have many nice properties.

Détails

Date :
19 février 2025
Heure :
11h00 – 12h00
Catégories d’Évènement:
,
Site :
https://www.math.ens.psl.eu/~tholozan/raconte_moi.html

Orateur

Ravi Ramakrishna

DMA Salle W