73 citations · 101 across the 5 of their papers we have counts for
5 papers
Twining characters and orbit Lie algebras
J. Fuchs, U. Ray, A. N. Schellekens +1
We associate to outer automorphisms of generalized Kac-Moody algebras generalized character-valued indices, the twining characters. A character formula for twining characters is de…
Twining characters, orbit Lie algebras, and fixed point resolution
J"urgen Fuchs, Bert Schellekens, Christoph Schweigert
We describe the resolution of field identification fixed points in coset conformal field theories in terms of representation spaces of the coset chiral algebra. A necessary ingredi…
The resolution of field identification fixed points in diagonal coset theories
J"urgen Fuchs, Bert Schellekens, Christoph Schweigert
The fixed point resolution problem is solved for diagonal coset theories. The primary fields into which the fixed points are resolved are described by submodules of the branching s…
Quasi-Galois Symmetries of the Modular S-Matrix
J. Fuchs, A. N. Schellekens, C. Schweigert
The recently introduced Galois symmetries of RCFT are generalized, for the WZW case, to `quasi-Galois symmetries'. These symmetries can be used to derive a large number of equaliti…
Modular invariants and fusion rule automorphisms from Galois theory
Jürgen Fuchs, Beatriz Gato-Rivera, Bert Schellekens +1
We show that Galois theory of cyclotomic number fields provides a powerful tool to construct systematically integer-valued matrices commuting with the modular matrix S, as well as…