Serge Bouc

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20242026

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math.RT2026

The $D^{Δ}$ -pair biset category

Robert Boltje, Serge Bouc, Deniz Yılmaz

Let $p$ be a prime number. A $D^{Δ}$ -pair is a pair consisting of a finite $p$ -group and a $p^{'}$ -automorphism of the group. In this paper, we introduce diagonal $D^{Δ}$ -pair bisets and…

math.GR2026

On the separability of some Green biset functors

Serge Bouc, Nadia Romero

We show that the Green biset functor $R_{C}$ of complex characters over $Z$ , is not separable, i.e. it is not projective as a bimodule over itself. Also, we show…

The DΔ-pair biset category

On the separability of some Green biset functors

The $D^{Δ}$ -pair biset category