Siddani Bhaskara Rao is a graph theorist,

Professor Emeritus ''Emeritus/Emerita'' () is an honorary title granted to someone who retirement, retires from a position of distinction, most commonly an academic faculty position, but is allowed to continue using the previous title, as in "professor emeritus". ...

, and director of the

Indian Statistical Institute The Indian Statistical Institute (ISI) is a public research university headquartered in Kolkata, India with centers in New Delhi, Bengaluru, Chennai and Tezpur. It was declared an Institute of National Importance by the Government of India und ...

(ISI) in

Calcutta Kolkata, also known as Calcutta (List of renamed places in India#West Bengal, its official name until 2001), is the capital and largest city of the Indian States and union territories of India, state of West Bengal. It lies on the eastern ba ...

. Rao is the first director of the CR Rao Advanced Institute of Mathematics, Statistics and Computer Science. S. B. Rao is known for his work on line graphs,

frequency partition In graph theory, a discipline within mathematics, the frequency partition of a graph (simple graph) is a partition of its vertices grouped by their degree. For example, the degree sequence of the left-hand graph below is (3, 3, 3, 2, 2, 1) and its ...

s and

degree sequence In graph theory, the degree (or valency) of a vertex of a graph is the number of edges that are incident to the vertex; in a multigraph, a loop contributes 2 to a vertex's degree, for the two ends of the edge. The degree of a vertex v is denot ...

s. Rao hails from

Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...

and completed his M.A. (1965) in mathematics from

Andhra University Andhra University is a public university located in Visakhapatnam, Andhra Pradesh, India. It was established in 1926. It is graded as an A++ institution by NAAC receiving a score of 3.74 on a scale of 4. History King Vikram Deo Verma, the Mah ...

. He received his Ph.D. (1971) from the

under the supervision of renowned Statistician CR Rao. After completing his Ph.D., he moved to the

University of Mumbai University of Mumbai is a public state university in Mumbai. It is one of the largest university systems in the world with over 549,000 students on its campuses and affiliated colleges. , the university had 711 affiliated colleges. It was est ...

to work with S. S. Shrikhande. At the same time, he visited

King's College, Aberdeen King's College in Old Aberdeen, Scotland, the full title of which is The University and King's College of Aberdeen (''Collegium Regium Aberdonense''), is a formerly independent university founded in 1495 and now an integral part of the Univer ...

to work with Crispin St. J. A. Nash-Williams. From the University of Mumbai, Rao went back to the Indian Statistical Institute (ISI). While at ISI, he visited

Ohio State University The Ohio State University (Ohio State or OSU) is a public university, public Land-grant university, land-grant research university in Columbus, Ohio, United States. A member of the University System of Ohio, it was founded in 1870. It is one ...

. Rao has guided students for their Ph.D.s in graph theory. He was the director of ISI Calcutta from 1995 to 2000. After retirement from ISI, he went to

University of Hyderabad The University of Hyderabad (UoH) is a prestigious public central research university located in Gachibowli, Hyderabad, Telangana, India. Established in 1974, this mostly residential campus has more than 5,000 students and 400 faculty, from ...

to work as the first director of the C. R. Rao Advanced Institute of Mathematics, Statistics and Computer Science,

Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...

References

Living people Graph theorists 1943 births Alumni of the University of Aberdeen Andhra University alumni Indian combinatorialists {{India-academic-bio-stub