https://indianpedia.org/index.php?action=history&feed=atom&title=Dijen_K._Ray-ChaudhuriDijen K. Ray-Chaudhuri - Revision history2026-07-31T22:13:21ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=Dijen_K._Ray-Chaudhuri&diff=256528&oldid=prev->Ser Amantio di Nicolao at 02:08, 13 May 20212021-05-13T02:08:24Z<p></p>
<p><b>New page</b></p><div>{{Infobox scientist<br />
|name = D. K. Ray-Chaudhuri<br />
|image = Dwijendra Kumar Ray-Chaudhuri.jpg<br />
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|birth_date = November 1 1933<br />
|field = [[Combinatorics]]<br />
|work_institutions = [[Ohio State University]]<br />
|alma_mater = [[Rajabazar Science College]] ([[University of Calcutta]])<br>[[University of North Carolina at Chapel Hill]]<br />
|doctoral_advisor = [[Raj Chandra Bose]]<br />
|known_for = [[BCH code]] <br> [[Kirkman's schoolgirl problem]]<br />
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|influences = <br />
|influenced = <br />
|prizes = [[Euler Medal]] {{small|(1999)}}<br />
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}}<br />
'''Dwijendra Kumar Ray-Chaudhuri''' (born November 1, 1933) is a [[professor emeritus]] at [[Ohio State University]]. He and his student [[R. M. Wilson]] together solved [[Kirkman's schoolgirl problem]] in 1968 <ref>{{Cite web|url=https://people.math.osu.edu/ray-chaudhuri.1/DijenCV.pdf|title=DijenCV|website=people.math.osu.edu|language=en-US|access-date= 2020-03-03}}</ref> which contributed to developments in [[combinatorial design|design theory]].<br />
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He received his M.Sc. (1956) in mathematics from the famous [[Rajabazar Science College]], [[University of Calcutta]] and Ph.D. in combinatorics (1959) from [[University of North Carolina at Chapel Hill]]. He served as consultant at [[Weill Cornell Medicine|Cornell Medicine]] and [[Memorial Sloan Kettering Cancer Center|Sloan Kettering]], a professor and chairman of the Department of Mathematics at [[Ohio State University]], as well as a visiting professor of [[University of Göttingen]] and [[University of Erlangen]] in [[Germany]], [[University of London]], and [[Tata Institute of Fundamental Research]] in [[Mumbai]].<br />
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He is best known for his work in [[combinatorial design|design theory]] and the theory of [[error-correcting code]]s, in which the class of [[BCH code]]s is partly named after him and his Ph.D. advisor [[R. C. Bose|Bose]].<ref>[http://genealogy.math.ndsu.nodak.edu/id.php?id=11328. Mathematics Genealogy Project]</ref> Ray-Chaudhuri is the recipient of the [[Euler]] Medal by the [[Institute of Combinatorics and its Applications]] for his career contributions to combinatorics. In 2000, a [[festschrift]] appeared on the occasion of his 65th birthday.<ref>''Codes and Designs: Proceedings of a Conference Honoring Professor Dijen K. Ray-Chaudhuri on the Occasion of His 65th Birthday'' (The Ohio State University, May 18–21, 2000). Editors: K.T. Arasu and Ákos Seress.<br />
Berlin, New York: Walter de Gruyter, 2002. {{ISBN|978-3-11-017396-3}}. {{doi|10.1515/9783110198119}}</ref> In 2012 he became a fellow of the [[American Mathematical Society]].<ref>[https://www.ams.org/profession/fellows-list List of Fellows of the American Mathematical Society], retrieved 2013-06-09.</ref><br />
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== Honors, Awards, and Fellowships ==<br />
*Senior U.S. Scientist Award of the Humboldt Foundation of Germany<br />
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*Distinguished Senior Research Award from [[Ohio State University]]<br />
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*President for Forum in New Delhi <br />
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*Foundation Fellow of the [[Institute of Combinatorics and its Applications|ICA]]<br />
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*Euler Medal of [[Institute of Combinatorics and its Applications|ICA]].<ref>{{Cite web|url=https://people.math.osu.edu/ray-chaudhuri.1/DijenCV.pdf|title=DijenCV|website=OSU|language=en-US|access-date= 2020-03-03}}</ref> <br />
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*Fellow of the [[American Mathematical Society]].<ref>{{Cite web|url=https://www.wikidata.org/wiki/Q1151429|title=Dijen K. Ray-Chaudhuri|website=WIKIDATA|language=en-US|access-date=2020-03-03}}</ref> <br />
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==Selected publications==<br />
*[[R. C. Bose]] and D. K. Ray-Chaudhuri: On a class of error correcting binary group codes. ''[[Information and Control]]'' 3(1): 68-79 (March 1960).<br />
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*[[C. T. Abraham]], S. P Ghosh and D. K. Ray-Chaudhuri: File organization schemes based on finite geometries. ''[[Information and control]]'', 1968.<br />
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*[[D. K. Ray-Chaudhuri]] and R. M. Wilson: Solution of Kirkman's schoolgirl problem. ''[[Proc. symp. pure Math,]]'' 1971.<br />
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*[[D. K. Ray-Chaudhuri]] and R. M. Wilson: On t-designs. ''[[Osaka Journal of Mathematics]]'' 1975.<br />
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==References==<br />
{{reflist}}<br />
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{{Authority control}}<br />
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{{DEFAULTSORT:Ray-Chaudhuri, D. K.}}<br />
[[Category:Indian combinatorialists]]<br />
[[Category:20th-century Indian mathematicians]]<br />
[[Category:Fellows of the American Mathematical Society]]<br />
[[Category:Indian emigrants to the United States]]<br />
[[Category:University of Calcutta alumni]]<br />
[[Category:University of North Carolina at Chapel Hill alumni]]<br />
[[Category:Ohio State University faculty]]<br />
[[Category:20th-century American mathematicians]]<br />
[[Category:Living people]]<br />
[[Category:1933 births]]<br />
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{{US-mathematician-stub}}</div>->Ser Amantio di Nicolao