1. K. Ardakov, “The centre of completed group algebras of pro-$$p$$ groups,” Doc. Math. 9, 599–606 (2004).
2. J.-N. Bernstein, “Le ‘centre’ de Bernstein (rédigé par P. Deligne),” in Représentations des groupes réductifs sur un corps local (Hermann, Paris, 1984), pp. 1–32.
3. Grundl. Math. Wiss.;S. Bosch,1984
4. Elements of Mathematics;N. Bourbaki,1995
5. C. Breuil, F. Herzig, Y. Hu, S. Morra, and B. Schraen, “Conjectures and results on modular representations of $$\mathrm {GL}_n(K)$$ for a $$p$$-adic field $$K$$,” arXiv: 2102.06188 [math.NT].