Noted mathematician Vashishth Narayan Singh passed away in Patna, Bihar. He was 77. Singh had been suffering from schizophrenia for 40 years.

He was born on April 2, 1942. He did graduation from Patna Science College where he met American Professor John L Kelley, who invited him to Berkeley, the U.S. for research.

In 1963, he went to California University for research and completed his Ph.D. on “on cycle vector space theory” from the University of California, Berkely in 1969 and later worked as a professor of mathematics at Washington University, NASA.

After returning to India he worked as an Associate Professor in IIT-Kanpur and Kolkata.