3 papers
hep-th2025
From Tensor Algebras to Hyperbolic Kac-Moody Algebras
Axel Kleinschmidt, Hannes Malcha, Hermann Nicolai
We propose a novel approach to study hyperbolic Kac-Moody algebras, and more specifically, the Feingold-Frenkel algebra , which is based on considering the tensor alg…
hep-th2024
A string-like realization of hyperbolic Kac-Moody algebras
Saverio Capolongo, Axel Kleinschmidt, Hannes Malcha +1
We propose a new approach to studying hyperbolic Kac-Moody algebras, focussing on the rank-3 algebra first investigated by Feingold and Frenkel. Our approach is base…
hep-th2024
Coupling of Branes and Twisted Self-Duality in the Maxwell-Chern-Simons Theory
Hannes Malcha
We study three approaches to electric-magnetic duality in the 4-dimensional Maxwell theory coupled to a dyonic point charge and in the 5-dimensional Maxwell-Chern-Simons (MCS) theo…