Bihar Chief Minister Nitish Kumar condoled death of Mathematician Vashishtha Narayan Singh in Patna. Legendary Mathematician Vashishtha Narayan Singh passed away after a long illness in Patna on Thursday morning. The story of Singh, who gained fame as a mathematical genius, grew into more of a myth than a man. His dissertation–”Reproducing Kernels and Operators with Cyclic Vector” won great acclaim in the field of mathematics.