Abstract
We study the class of non-degenerate homogeneous structures of linear type in the pseudo-Kahler, para-Kahler, pseudo-quaternion Kahler and para-quaternion Kahler cases. We show that these structures characterize spaces of constant holomorphic, para-holomorphic, quaternion and para-quaternion sectional curvature respectively. In addition the corresponding homogeneous models are computed, exhibiting the relation between these kind of structures and the incompleteness of the metric.
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