C. S. Seshadri

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C.S. Seshadri
SeshadriinBengaluru2010 182.JPG
Seshadri at IISc, Bangalore in 2010.
Conjeevaram Srirangachari Seshadri

(1932-02-29)29 February 1932
Died17 July 2020(2020-07-17) (aged 88)
Chennai, India
Known forSeshadri constant
Narasimhan–Seshadri theorem
standard monomial theory
AwardsShanti Swarup Bhatnagar Award, Padma Bhushan, Fellow of the Royal Society
Scientific career
InstitutionsChennai Mathematical Institute
Doctoral advisorK. S. Chandrasekharan
Doctoral studentsVikraman Balaji, V. Lakshmibai

Conjeevaram Srirangachari Seshadri FRS (29 February 1932[1] – 17 July 2020) was an Indian mathematician. He was the founder and director-emeritus of the Chennai Mathematical Institute,[2] and is known for his work in algebraic geometry. The Seshadri constant is named after him.

He was a recipient of the Padma Bhushan in 2009,[3] the third highest civilian honor in the country.[4]

Degrees and posts[edit]

He received his B.A. (Hons) degree in Mathematics from Madras University in 1953 and was mentored by Fr. Racine and S Naryanan there.[5] He completed his PhD from Bombay University in 1958 under the supervision of K. S. Chandrasekharan.[6] He was elected Fellow of the Indian Academy of Sciences in 1971.[7]

Seshadri worked in the School of Mathematics at TIFR in Bombay from 1953 to 1984 starting as a Research Scholar and rising to a senior professor. From 1984 to 1989, he worked in IMSc in Chennai. From 1989 to 2010, he worked as the founding director of the Chennai Mathematical Institute. He stepped down from his Directorship of the Chennai Mathematical Institute in December 2010, and continued to be a part of CMI as "Director-Emeritus" till his death in 2020.

Visiting professorships[edit]

He has given talks at the ICM.

Awards and fellowships[edit]

Research work[edit]

Seshadri's main work was in algebraic geometry. His work with M S Narasimhan on unitary vector bundles and the Narasimhan–Seshadri theorem has influenced the field. His work on Geometric Invariant Theory and on Schubert varieties, in particular his introduction of standard monomial theory, is widely recognized. Seshadri's contributions include the creation of the Chennai Mathematical Institute, an institute for the study of mathematics in India.


  • Narasimhan, M. S.; Seshadri, C. S. (1965). "Stable and unitary vector bundles on a compact Riemann surface". Annals of Mathematics. The Annals of Mathematics, Vol. 82, No. 3. 82 (3): 540–567. doi:10.2307/1970710. JSTOR 1970710. MR 0184252.
  • Seshadri, C. S. (2007), Introduction to the theory of standard monomials, Texts and Readings in Mathematics, 46, New Delhi: Hindustan Book Agency, ISBN 9788185931784, MR 2347272
  • Seshadri, C.S. (2010). Studies in the History of Indian Mathematics. New Delhi: Hindustan Book Agency. ISBN 9789380250069.
  • Seshadri, C. S. (2012), Collected papers of C. S. Seshadri. Volume 1. Vector bundles and invariant theory, New Delhi: Hindustan Book Agency, ISBN 9789380250175, MR 2905897
  • Seshadri, C. S. (2012), Collected papers of C. S. Seshadri. Volume 2. Schubert geometry and representation theory., New Delhi: Hindustan Book Agency, ISBN 9789380250175, MR 2905898


  1. ^ "C S Seshadri – A Glimpse of His Mathematical Personality" (PDF). Asia Pacific Mathematics Newsletter. 2: 17–21. 2012. Archived from the original on 10 December 2016.CS1 maint: BOT: original-url status unknown (link)
  2. ^ "C.S. Seshadri's official profile an Chennai Mathematical Institute".
  3. ^ Padma Bushan, 2009
  4. ^ "Prof. C S Seshadri to be conferred prestigious Rathindra Puraskar from Visva Bharrati". BUSINESSWIRE INDIA. 24 November 2008.
  5. ^ RAMANI, HEMA IYER. "'Constant' Mathematician". The Hindu. Retrieved 10 December 2016.
  6. ^ C. S. Seshadri at the Mathematics Genealogy Project
  7. ^ Information of the Indian Academy of Sciences "Fellow Profile of Prof. C.S. Seshadri".
  8. ^ "Sorbonne Université".
  9. ^ "TWAS, illycaffè announce 2006 Trieste Science Prize winners".
  10. ^ O'Leary, Maureen. "72 New Members Chosen By Academy". National Academy of Sciences. Retrieved 22 September 2010.
  11. ^ List of Fellows of the American Mathematical Society, retrieved 18 July 2013.


External links[edit]