@article{Ishan2022, 
author = {Amira Ishan and Sharief Deshmukh},
title = {Torse-forming vector fields on    m -spheres},
year = {2022},
journal = {AIMS Mathematics},
volume = {7},
number = {2},
pages = {3056-3066},
keywords = {torse-forming vector fields, Ricci operator, Ricci curvature},
url = {https://www.sciopen.com/article/10.3934/math.2022169},
doi = {10.3934/math.2022169},
abstract = {A characterization of an    m-sphere              S              m        (  a  ) is obtained using a non-trivial torse-forming vector field    ζ on an    m-dimensional Riemannian manifold.}
}