Tirukkannapuram Vijayaraghavan (Tamil: திருக்கண்ணபுரம் விஜயராகவன்; 30 November 1902 – 20 April 1955) was an Indian mathematician from the Madras region.
He was a fellow of Indian Academy of Sciences elected in the year 1934.
Weil hired him in 1930 despite his lack of diploma, and they served together in Aligarh Muslim University.
[1] While Weil was away in Europe, Ross Masood planned to replace Weil's professorship with Vijayaraghavan, but Vijayaraghavan quit in protest and moved to the University of Dhaka.
[2] Vijayaraghavan proved a special case of Herschfeld's theorem on nested radicals:[3] For