CL-Transformation on 3-Dimensional Quasi Sasakian Manifolds and Their Ricci Soliton

Rajesh Kumar, Lalnunenga Colney and Dalal Alhwikem ()
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Rajesh Kumar: Department of Mathematics, Pachhunga University College, Mizoram University, Aizawl 796001, India
Lalnunenga Colney: Department of Mathematics and Computer Science, Mizoram University, Aizawl 796001, India
Dalal Alhwikem: Department of Mathematics, College of Science, Qassim University, Burydah 52571, Saudi Arabia

Mathematics, 2025, vol. 13, issue 10, 1-17

Abstract: This paper explores the geometry of 3-dimensional quasi Sasakian manifolds under CL -transformations. We construct both infinitesimal and C L -transformation and demonstrate that the former does not necessarily yield projective killing vector fields. A novel invariant tensor, termed the C L -curvature tensor, is introduced and shown to remain invariant under C L -transformations. Utilizing this tensor, we characterize C L -flat, C L -symmetric, C L - φ symmetric and C L - φ recurrent structures on such manifolds by mean of differential equations. Furthermore, we investigate conditions under which a Ricci soliton exists on a CL-transformed quasi Sasakian manifold, revealing that under flat curvature, the structure becomes Einstein. These findings contribute to the understanding of curvature dynamics and soliton theory within the context of contact metric geometry.

Keywords: three-dimensional quasi Sasakian manifold; CL -transformation; invariant tensor fields; curvature conditions; differential equations; Ricci soliton (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2025
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