Rational CFT’s are classified by an integer ℓ, the number of zeroes of the Wronskian of their characters in moduli space. For ℓ = 0 they satisfy non-singular modularinvariant differential equations, while for ℓ > 0 the ...
Some relations between families of two-character CFTs are explained using a slightly generalised coset construction, and the underlying theories (whose existence was only conjectured based on the modular differential ...
Using the method of modular-invariant differential equations, we classify a family of Rational Conformal Field Theories with two and three characters having no Kac-Moody algebra. In addition to unitary and non-unitary ...