Cosymplectic and $\alpha$-cosymplectic Lie algebras
  We completely characterize cosymplectic and $\alpha$-cosymplectic Lie algebras in terms of corresponding symplectic Lie algebras and suitable derivations on them. Several examples are given and classification results are obtained in dimension five for cosymplectic, $K$-cosymplectic and coK\"ahler Lie algebras. 
Giovanni Calvaruso and Antonella Perrone
math.DG