Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Learn about the classification of perturbations in the context of inflationary cosmology and reheating in this advanced physics lecture from the 3rd Vignyana Patashala series, delivered by Professor L. Sriramkumar from IIT Madras. Explore fundamental concepts and theoretical frameworks that help explain how perturbations during the early universe evolved and influenced cosmic structure formation.