참고문헌
- W. Ambrose, A theorem of Myers, Duke Math. J. 24 (1957), 345-348. http://projecteuclid.org/euclid.dmj/1077467480 https://doi.org/10.1215/S0012-7094-57-02440-7
- C. Aquino, A. Barros, and E. Ribeiro, Jr., Some applications of the Hodge-de Rham decomposition to Ricci solitons, Results Math. 60 (2011), no. 1-4, 245-254. https://doi.org/10.1007/s00025-011-0166-1
- A. Barros, J. N. Gomes, and E. Ribeiro, Jr., A note on rigidity of the almost Ricci soliton, Arch. Math. (Basel) 100 (2013), no. 5, 481-490. https://doi.org/10.1007/s00013-013-0524-1
- A. Barros and E. Ribeiro, Jr., Some characterizations for compact almost Ricci solitons, Proc. Amer. Math. Soc. 140 (2012), no. 3, 1033-1040. https://doi.org/10.1090/S0002-9939-2011-11029-3
-
A. M. Blaga, Almost
$\eta$ -Ricci solitons in$(LCS)_n$ -manifolds, Bull. Belg. Math. Soc. Simon Stevin 25 (2018), no. 5, 641-653. https://projecteuclid.org/euclid.bbms/1547780426 https://doi.org/10.36045/bbms/1547780426 - M. Brozos-Vazquez, E. Garcia-Rio, and X. Valle-Regueiro, Half conformally flat gradient Ricci almost solitons, Proc. A. 472 (2016), no. 2189, 20160043, 12 pp. https://doi.org/10.1098/rspa.2016.0043
- E. Calvino-Louzao, M. Fernandez-Lopez, E. Garcia-Rio, and R. Vazquez-Lorenzo, Homogeneous Ricci almost solitons, Israel J. Math. 220 (2017), no. 2, 531-546. https://doi.org/10.1007/s11856-017-1538-3
- G. Catino, Generalized quasi-Einstein manifolds with harmonic Weyl tensor, Math. Z. 271 (2012), no. 3-4, 751-756. https://doi.org/10.1007/s00209-011-0888-5
- G. Catino, L. Cremaschi, Z. Djadli, C. Mantegazza, and L. Mazzieri, The Ricci-Bourguignon flow, Pacific J. Math. 287 (2017), no. 2, 337-370. https://doi.org/10.2140/pjm.2017.287.337
- G. Catino, P. Mastrolia, D. Monticelli, and M. Rigoli, On the geometry of gradient Einstein-type manifolds, Pacic J. Math. 286 (2017), no. 1, 39-67. https://doi.org/10.2140/pjm.2017.286.39
- G. Catino and L. Mazzieri, Gradient Einstein solitons, Nonlinear Anal. 132 (2016), 66-94. https://doi.org/10.1016/j.na.2015.10.021
- J. T. Cho and M. Kimura, Ricci solitons and real hypersurfaces in a complex space form, Tohoku Math. J. (2) 61 (2009), no. 2, 205-212. https://doi.org/10.2748/tmj/1245849443
- R. E. Greene and H.Wu, On the subharmonicity and plurisubharmonicity of geodesically convex functions, Indiana Univ. Math. J. 22 (1972/73), 641-653. https://doi.org/10.1512/iumj.1973.22.22052
- R. S. Hamilton, Three-manifolds with positive Ricci curvature, J. Differential Geom. 17 (1982), no. 2, 255-306. http://projecteuclid.org/euclid.jdg/1214436922 https://doi.org/10.4310/jdg/1214436922
- G. Perelman, The entropy formula for the Ricci flow and its geometric applications, arXiv:math/0211159, (2002).
- P. Petersen, Riemannian Geometry, second edition, Graduate Texts in Mathematics, 171, Springer, New York, 2006.
- S. Pigola, M. Rigoli, M. Rimoldi, and A. Setti, Ricci almost solitons, Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 10 (2011), no. 4, 757-799.
- R. Sharma, Almost Ricci solitons and K-contact geometry, Monatsh. Math. 175 (2014), no. 4, 621-628. https://doi.org/10.1007/s00605-014-0657-8
- K. Yano, Integral Formulas in Riemannian Geometry, Pure and Applied Mathematics, No. 1, Marcel Dekker, Inc., New York, 1970.