T. E. S. Raghavan

He holds the degree of M.Sc. in Statistics (Presidency College, Madras University) and received his Ph.D. in Mathematics and Statistics from ISI Calcutta in 1968 under the guidance of statistician Calyampudi Radhakrishna Rao based on his thesis: Extensions on the Theory of Positive Operators and Their Relationship to Minimax Games.

Raghavan’s interests are game theory, linear and non-linear programming, matrix theory, applied statistics, operations research.{{Cite web |title=T.E.S Raghavan |url=https://scholar.google.com/citations?user=x4MT3MkAAAAJ |access-date=2025-05-19 |website=scholar.google.com}} He made contributions to game theory,{{Citation |last=Raghavan |first=T.E.S. |title=Chapter 20 Zero-sum two-person games |date=1994 |work=Handbook of Game Theory with Economic Applications |pages=735–768 |url=https://doi.org/10.1016/s1574-0005(05)80052-9 |access-date=2025-02-25 |publisher=Elsevier}}{{Cite journal |last=Hsiao |first=Chih-Ru |last2=Raghavan |first2=T.E.S. |date=1993 |title=Shapley Value for Multichoice Cooperative Games, I |url=https://linkinghub.elsevier.com/retrieve/pii/S0899825683710146 |journal=Games and Economic Behavior |language=en |volume=5 |issue=2 |pages=240–256 |doi=10.1006/game.1993.1014|url-access=subscription }}{{Cite journal |last=Solymosi |first=Tamas |last2=Raghavan |first2=Tirukkannamangai E. S. |date=1994 |title=An algorithm for finding the nucleolus of assignment games |url=http://link.springer.com/10.1007/BF01240179 |journal=International Journal of Game Theory |language=en |volume=23 |issue=2 |pages=119–143 |doi=10.1007/BF01240179 |issn=0020-7276|url-access=subscription }} decision science, and special matrices{{Cite book |last=Bapat |first=R. B. |url=https://www.cambridge.org/core/product/identifier/9780511529979/type/book |title=Nonnegative Matrices and Applications |last2=Raghavan |first2=T. E. S. |date=1997-03-28 |publisher=Cambridge University Press |isbn=978-0-521-57167-8 |edition=1 |doi=10.1017/cbo9780511529979}} are well known. He co-authored books on game theory with T. Parthasarathy,{{Cite book |last=Parthasarathy |first=T. |title=Some topics in two-person games |last2=Raghavan |first2=T. E. S. |publisher=Elsevier Publishing Company, Inc. |year=1971 |isbn=978-0444000590 |edition=1st |series=Modern Analytic and Computational Methods in Science and Mathematics. No. 22. |location=New York: American |pages=X, 259 p. |language=en}}{{Cite journal |last=Rosenthal |first=Robert W. |date=1972 |title=Some Topics in Two-Person Games (T. Parthasarathy and T. E. S. Raghavan) |url=https://epubs.siam.org/doi/10.1137/1014044 |journal=SIAM Review |language=en |volume=14 |issue=2 |pages=356–357 |doi=10.1137/1014044 |issn=0036-1445|url-access=subscription }} and the nonnegative matrices and their applications with R.B. Bapat. He contributed to the understanding of stochastic games{{Cite journal |last=Nowak |first=A. S. |last2=Raghavan |first2=T. E. S. |date=1992 |title=Existence of Stationary Correlated Equilibria with Symmetric Information for Discounted Stochastic Games |url=https://pubsonline.informs.org/doi/10.1287/moor.17.3.519 |journal=Mathematics of Operations Research |language=en |volume=17 |issue=3 |pages=519–526 |doi=10.1287/moor.17.3.519 |issn=0364-765X|url-access=subscription }} and cooperative games. T.E.S. Raghavan organized 4 international conferences at UIC, the first on Stochastic games in honor of L.Shapley (1987), special Game Theory International Conferences at UIC  in honor of Shapley(1991), Aumann (1994), Maschler (1996).

He published more than 60 research papers, 4 monographs,{{cite web |last=Raghavan |first=Thirukkannamangai E.S. |date=1965 |title=Profile & list of publication in MathSciNet |url=https://mathscinet.ams.org/mathscinet/2006/mathscinet/search/publications.html?pg1=INDI&s1=207845 |url-status=live |archive-url=https://mathscinet.ams.org/mathscinet/2006/mathscinet/search/author.html?mrauthid=207845 |archive-date=2025-04-12 |access-date=2023-02-19 |website=MathSciNet |language=en |number=American Mathematical Society}}{{Cite web |title=T.E.S Raghavan - Author Profile - zbMATH Open |url=https://zbmath.org/authors/?q=ai:raghavan.thirukkannamangai-e-s%7Craghavan.tirukkannamangai-e-s |access-date=2025-02-25 |website=zbmath.org}} and guided 14 PhD students.{{Cite web |title=Thirukkannamangai Raghavan - The Mathematics Genealogy Project |url=https://mathgenealogy.org/id.php?id=38650 |access-date=2025-02-25 |website=mathgenealogy.org}}

Being an ardent fan of Carnatic music, Raghavan has been actively involved in promoting the art form through the annual Chicago Tyagaraja Utsavam, which he helps organize in Chicago.{{Cite web |title=Chicago Tyagaraja Utsavam |url=https://chicagotyagarajautsavam.org/ |access-date=2025-02-25 |website=chicagotyagarajautsavam.org}}

In line with the ancient Indian educational system, Raghavan also runs a Gurukulam (Sanskrit: गुरुकुलम्) in Game Theory in his native village of Pulavanur, Tamil Nadu. This Gurukulam was organized in collaboration with CARAMS, MAHE, Manipal, furthering its academic outreach and fostering interdisciplinary dialogue.

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Category:20th-century Indian mathematicians

Category:21st-century Indian mathematicians

Category:20th-century American mathematicians

Category:21st-century American mathematicians

Category:1940 births

Category:Fellows of the Indian Academy of Sciences

Category:Scientists from Chennai

Category:Living people