On Simply Harmonic “Kappa Spaces” of Four Dimensions
On Simply Harmonic “Kappa Spaces” of Four Dimensions
Page 327, equations (6.1), (6.2). The Christoffel symbols { 4 31 } , { 4 32 } , { 3 41 } , { 3 42 } are also not identically zero, but do vanish if (6.3), (6.4) are satisfied.