Sharma, RameshSahin, Bayram2024-08-252024-08-2520231307-5624https://doi.org/10.36890/IEJG.1253398https://hdl.handle.net/11454/101585In this note, we present a biographical sketch of the life and academic contributions of geometries of manifolds with various structural groups of the tangent bundle, Lightlike curves and submanifolds, Cauchy-Riemann geometry, Symmetries of semi-Riemannian manifolds, to Killing horizons. In particular, his approach to the study of lightlike submanifolds is remarkable and drawn considerable interest of many geometers.en10.36890/IEJG.1253398info:eu-repo/semantics/openAccessCR-structurelightlike submanifoldsconformal geometryLorentzian geometrygeneral relativityLight-Like SubmanifoldsBiographical Item16113WOS:000985795700001Q4