New York Journal of Mathematics
Volume 21 (2015) 191-203

  

Rashmi Sachdeva, Rakesh Kumar, and Satvinder Singh Bhatia

Totally umbilical hemi-slant lightlike submanifolds

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Published: April 7, 2015
Keywords: Indefinite Kaehler manifolds, hemi-slant lightlike submanifolds, totally umbilical lightlike submanifolds, minimal lightlike submanifolds.
Subject: 53C15, 53C40, 53C50

Abstract
We study hemi-slant lightlike submanifolds of indefinite Kaehler manifolds and prove that there do not exist totally umbilical hemi-slant lightlike submanifolds in indefinite Kaehler manifolds other than totally geodesic hemi-slant lightlike submanifolds. We consequently prove that the induced connection of a totally umbilical hemi-slant lightlike submanifold is a metric connection. We obtain a characterization theorem on the nonexistence of totally umbilical hemi-slant lightlike submanifold of an indefinite complex space form and some characterization theorems on minimal hemi-slant lightlike submanifolds.

Author information

Rashmi Sachdeva:
School of Mathematics and Computer Applications, Thapar University, Patiala, India.
rashmi.sachdeva86@gmail.com

Rakesh Kumar:
Department of Basic and Applied Sciences, Punjabi University, Patiala, India
dr_rk37c@yahoo.co.in

Satvinder Singh Bhatia:
School of Mathematics and Computer Applications, Thapar University, Patiala, India.
ssbhatia@thapar.edu