Navin Madhavprasad Singhi (born 1949) is an India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n mathematician

Mathematician

A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

 and a professor

Professor

A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...

 at Tata Institute of Fundamental Research

Tata Institute of Fundamental Research

The Tata Institute of Fundamental Research is a research institution in India dedicated to basic research in mathematics and the sciences. It is a Deemed University and works under the umbrella of the Department of Atomic Energy of the Government of India. It is located at Navy Nagar, Colaba, Mumbai...

 Mumbai

Mumbai

Mumbai , formerly known as Bombay in English, is the capital of the Indian state of Maharashtra. It is the most populous city in India, and the fourth most populous city in the world, with a total metropolitan area population of approximately 20.5 million...

, specializing in combinatorics

Combinatorics

Combinatorics is a branch of mathematics concerning the study of finite or countable discrete structures. Aspects of combinatorics include counting the structures of a given kind and size , deciding when certain criteria can be met, and constructing and analyzing objects meeting the criteria ,...

 and graph theory

Graph theory

In mathematics and computer science, graph theory is the study of graphs, mathematical structures used to model pairwise relations between objects from a certain collection. A "graph" in this context refers to a collection of vertices or 'nodes' and a collection of edges that connect pairs of...

. He is the recipient of the prestigious Shanti Swarup Bhatnagar Prize for Science and Technology. Singhi wrote two papers with Paul Erdős, giving him an Erdős number

Erdos number

The Erdős number describes the "collaborative distance" between a person and mathematician Paul Erdős, as measured by authorship of mathematical papers.The same principle has been proposed for other eminent persons in other fields.- Overview :...

 of 1. Singhi is known for his research in block designs, projective plane

Projective plane

In mathematics, a projective plane is a geometric structure that extends the concept of a plane. In the ordinary Euclidean plane, two lines typically intersect in a single point, but there are some pairs of lines that do not intersect...

s, line graphs

Line graphs of hypergraphs

The line graph of a hypergraph is the graph whose vertex set is the set of the hyperedges of the hypergraph, with two edges adjacent when they have nonempty intersection. In other words, the line graph of a hypergraph is the intersection graph of a family of finite sets...

, and coding theory

Coding theory

Coding theory is the study of the properties of codes and their fitness for a specific application. Codes are used for data compression, cryptography, error-correction and more recently also for network coding...

.

Singhi was born in Indore

Indore

Indore is one of the major city in India, the largest city and commercial center of the state of Madhya Pradesh in central India. Indore is located 190 km west of the state capital Bhopal. According to the 2011 Indian census, Indore city has a population of 1,960,631...

 and raised in Goregaon, Mumbai and earned a M.A. in mathematics from the University of Mumbai

University of Mumbai

The University of Mumbai , is a state university located in Mumbai, Maharashtra, India. It was known as the University of Bombay until 1996 when the city of Bombay was renamed as Mumbai. The affiliated colleges of the university are spread throughout the city of Mumbai and four coastal districts in...

. He earned a Ph.D. (1974) from the same University, his advisor was S. S. Shrikhande

S. S. Shrikhande

Sharadchandra Shankar Shrikhande is an Indian mathematician with distinguished and well-recognized achievements in combinatorial mathematics. He is notable for his breakthrough work along with R. C. Bose and E. T...

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