3 papers
math.DG2019
Hermitian metrics of constant Chern scalar curvature on ruled surfaces
Caner Koca, Mehdi Lejmi
It is known that Hirzebruch surfaces of non zero degree do not admit any constant scalar curvature Kähler metric \cite{ACGT,G,M17}. In this note, we describe how to construct Hermi…
math.DG2018
Einstein--Maxwell equations on 4-dimensional Lie algebras
Caner Koca, Mehdi Lejmi
We classify up to automorphisms all left-invariant non-Einstein solutions to the Einstein--Maxwell equations on 4-dimensional Lie algebras.
math.AG2005
Irreducible Heegner Divisors in the Period Space of Enriques Surfaces
Caner Koca, Ali Sinan Sertoz
Reflection walls of certain primitive vectors in the anti-invariant sublattice of the K3 lattice define Heegner divisors in the period space of Enriques surfaces. We show that depe…