DOI QR코드

DOI QR Code

GRADIENT YAMABE SOLITONS WITH CONFORMAL VECTOR FIELD

  • 투고 : 2020.03.27
  • 심사 : 2020.10.19
  • 발행 : 2021.01.31

초록

The purpose of this paper is to investigate the geometry of complete gradient Yamabe soliton (Mn, g, f, λ) with constant scalar curvature admitting a non-homothetic conformal vector field V leaving the potential vector field invariant. We show that in such manifolds the potential function f is constant and the scalar curvature of g is determined by its soliton scalar. Considering the locally conformally flat case and conformal vector field V, without constant scalar curvature assumption, we show that g has constant curvature and determines the potential function f explicitly.

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참고문헌

  1. A. L. Besse, Einstein manifolds, Ergebnisse der Mathematik und ihrer Grenzgebiete (3), 10, Springer-Verlag, Berlin, 1987. https://doi.org/10.1007/978-3-540-74311-8
  2. H.-D. Cao, X. Sun, and Y. Zhang, On the structure of gradient Yamabe solitons, Math. Res. Lett. 19 (2012), no. 4, 767-774. https://doi.org/10.4310/MRL.2012.v19.n4.a3
  3. G. Catino, C. Mantegazza, and L. Mazzieri, On the global structure of conformal gradient solitons with nonnegative Ricci tensor, Commun. Contemp. Math. 14 (2012), no. 6, 1250045, 12 pp. https://doi.org/10.1142/S0219199712500459
  4. P. Daskalopoulos and N. Sesum, The classification of locally conformally flat Yamabe solitons, Adv. Math. 240 (2013), 346-369. https://doi.org/10.1016/j.aim.2013.03.011
  5. R. Hamilton, Lectures on geometric flows, 1989.
  6. R. Sharma, Gradient Ricci solitons with a conformal vector field, J. Geom. 109 (2018), no. 2, Paper No. 33, 7 pp. https://doi.org/10.1007/s00022-018-0439-x
  7. K. Yano, Integral formulas in Riemannian geometry, Pure and Applied Mathematics, No. 1, Marcel Dekker, Inc., New York, 1970.