Classification of non-CSC extremal K\"{a}hler metrics on K-surfaces S²_\α\ and S²_\α,β\

We commonly refer to an extremal K\"{a}hler metric with finitely many singularities on a compact Riemann surface as an HCMU (Hessian of the Curvature of the Metric is Umbilical) metric. In this study, we specifically classify non-CSC HCMU metrics on the K-surfaces S²_\α\ and S²_\α,β\.