Classification of ʹt Hooft instantons over multi-centered gravitational instantons Original Research Article

This work presents a classification of all smooth ʹt Hooft–Jackiw–Nohl–Rebbi instantons over Gibbons–Hawking spaces. That is, we find all smooth SU(2) Yang–Mills instantons over these spaces which arise by conformal rescalings of the metric with suitable functions.