1 |
C. M. Wood, On the energy of a unit vector eld, Geom. Dedicata 64 (1997), no. 3, 319-330.
DOI
|
2 |
A. L. Besse, Manifolds All of Whose Geodesics are Closed, Springer-Verlag, Berlin-New York, 1978.
|
3 |
D. E. Blair, Riemannian Geometry of Contact and Symplectic Manifolds, Birkhauser, Boston, Inc., Boston, MA, 2002.
|
4 |
E. Boeckx and L. Vanhecke, Harmonic and minimal vector fields on tangent and unit tangent bundles, Differential Geom. Appl. 13 (2000), no. 1, 77-93.
DOI
ScienceOn
|
5 |
E. Boeckx and L. Vanhecke, Unit tangent sphere bundles with constant scalar curvature, Czechoslovak Math. J. 51(126) (2001), no. 3, 523-544.
DOI
|
6 |
S. H. Chun, J. H. Park, and K. Sekigawa, H-contact unit tangent sphere bundles of Einstein manifolds, Quart. J. Math., (to appear), DOI:10.1093/qmath/hap025.
DOI
ScienceOn
|
7 |
G. Calvaruso and D. Perrone, H-contact unit tangent sphere bundles, Rocky Mountain J. Math. 37 (2007), no. 5, 1435-1458.
DOI
ScienceOn
|
8 |
P. Carpenter, A. Gray, and T. J. Willmore, The curvature of Einstein symmetric spaces, Quart. J. Math. Oxford Ser. (2) 33 (1982), no. 129, 45-64.
DOI
|
9 |
Y. D. Chai, S. H. Chun, J. H. Park, and K. Sekigawa, Remarks of Einstein unit tangent bundles, Monatsh. Math. 155 (2008), no. 1, 31-42.
DOI
|
10 |
P. Nurowski and M. Pruzanowski, A four-dimensional example of a Ricci flat metric admitting almost-Kahler non-Kahler structure, Classical Quantum Gravity 16 (1999), no. 3, L9-L13.
DOI
ScienceOn
|
11 |
T. Oguro, K. Sekigawa, and A. Yamada, Four-dimensional almost Kahler Einstein and weakly *-Einstein manifolds, Yokohama Math. J. 47 (1999), no. 1, 75-92.
|
12 |
J. H. Park and K. Sekigawa, When are the tangent sphere bundles of a Riemannian manifold -Einstein?, Ann. Global Anal. Geom. 36 (2009), no. 3, 275-284.
DOI
ScienceOn
|
13 |
J. H. Park and K. Sekigawa, Notes on tangent sphere bundles of constant radii, J. Korean Math. Soc. 46 (2009), no. 6, 1255-1265.
과학기술학회마을
DOI
ScienceOn
|
14 |
D. Perrone, Contact metric manifolds whose characteristic vector eld is a harmonic vector eld, Differential Geom. Appl. 20 (2004), no. 3, 367-378.
DOI
ScienceOn
|