Jayant Narlikar Created 2026-10-24 Updated 2026-11-05
Jayant Narlikar investigated cosmology and alternative theories of gravity, including work with Fred Hoyle. As founding director of IUCAA, he also built an institutional setting in which differing cosmological models could be investigated.[ref]
Jayant V. Narlikar: tribute by R. Srianand. Signed opening tribute: scientific contributions and founding direction of IUCAA
His scientific writing makes the role of mathematical assumptions particularly clear. In his memoir of Amal Kumar Raychaudhuri, he explains how highly symmetric cosmological models simplify Einstein field equations, and why a general evolution equation can test conclusions that might otherwise depend on that symmetry. The distinction is between a singularity inferred in a special model and one established under a wider set of explicit conditions.[ref]
Amal Kumar Raychaudhuri by Jayant Vishnu Narlikar. Research discussion, pp. 171–175: cosmological assumptions, Raychaudhuri equation and singularity arguments
Portrait of Jayant Narlikar
. Biswarup Ganguly. CC BY 3.0, via Wikimedia Commons. Source.