S. A. Choudum

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S. A. Choudum
Born 1947 (age 69–70)
Residence Chennai
Citizenship Indian
Fields Graph Theory
Institutions IIT Madras,
University of Mumbai,
Madurai Kamaraj University,
University of Reading
Alma mater Karnataka University
IIT Madras
Doctoral advisor K. R. Parthasarathy
Known for Graph enumeration,
Degree sequence,
Graph coloring,
Bivariegated graph, Interconnection networks

Sheshayya A. Choudum (born 1947) is a professor and a former chair of the department of mathematics at IIT Madras specializing in graph theory. He has often worked in chromatic number, degree sequence, graph enumeration, bivariegated graphs, and networks.

Choudum hails from Manvi, Raichur district, Karnataka. He completed a MSc in mathematics from Karnataka University, Dharwar and a PhD in 1975 with the dissertation "Some Analysis, Synthesis and Graph Enumeration Problems in Graph Theory" from IIT Madras. His advisor was K. R. Parthasarathy. From there, he came to the University of Mumbai to work with S. S. Shrikhande, S. B. Rao and Vasanti N. Bhat-Nayak. Prior to joining the computer science department at IIT Madras, he was with the department of mathematics of Madurai Kamaraj University. While at Madurai, he visited the University of Reading to work with Crispin Nash-Williams. Choudum has guided 10 PhD students in graph theory.


  • A First Course in Graph Theory by S.A. Choudum Macmillan, 1999 ISBN 0-333-92040-6
  • Graph Theory, by S.A. Choudum, NPTEL (IITM), India, 2011.


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