Integrability conditions for almost quaternion structures

Differential Geometry on Complex and Almost Complex Spaces.

A. L. Hilt, Kentaro Yano · American Mathematical Monthly · 1967 · 373 citations

Natural Sciences, Mathematics, Geometry +12

Affine connections on manifolds with almost complex, quaternion or Hermitian structure

Morio Obata · Japanese journal of mathematics · 1956 · 150 citations · Full text

Natural Sciences, Mathematics, Geometry +12

Affine connections in a quaternion manifold and transformations preserving the structure.

Morio Obata · Journal of the Mathematical Society of Japan · 1957 · 13 citations · Full text

Natural Sciences, Mathematics, Geometry +12