tt* geometry, Frobenius manifolds, their connections, and the construction for singularities
tt* geometry, Frobenius manifolds, their connections, and the construction for singularities
The base space of a semiuniversal unfolding of a hypersurface singularity carries a rich geometry. By work of K. Saito and M. Saito is can be equipped with the structure of a Frobenius manifold. By work of Cecotti and Vafa it can be equipped with tt* geometry if the singularity …