Gereon Quick

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20242026

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math.GR2026

$A_{3}$ -formality for pro-2 Demushkin groups

Ambrus PÃ¡l, Ambrus Pál, Gereon Quick

We study a weak form of formality for differential graded algebras, called $A_{3}$ -formality, and show that the differential graded $F_{2}$ -algebras of continuous cochains of…

math.GR2026

$A_{3}$ -formality for Demushkin groups at odd primes

Ambrus PÃ¡l, Gereon Quick

We study a weak form of formality for differential graded algebras, called $A_{3}$ -formality, for the cohomology of pro-p Demushkin groups at odd primes p. We show that the different…

math.GR2025

Quasi-Boolean groups

Ambrus PÃ¡l, Gereon Quick

We give several equivalent characterisations of the maximal pro-2 quotients of real projective groups. In particular, for pro-2 real projective groups we provide a presentation in…

A3​-formality for pro-2 Demushkin groups

A3​-formality for Demushkin groups at odd primes

Quasi-Boolean groups

$A_{3}$ -formality for pro-2 Demushkin groups

$A_{3}$ -formality for Demushkin groups at odd primes