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Woman accuses Haryana IAS SN Rai of sexual assault
Woman accuses Haryana IAS SN Rai of sexual assault
Published: 2015/04/15
Channel: Zee News
OBM - Mathematician - Samarendra Nath Roy (1906-1964)
OBM - Mathematician - Samarendra Nath Roy (1906-1964)
Published: 2017/01/12
Channel: Our Best Moments
Haryana IAS officer S N Roy accused of sexual exploitation
Haryana IAS officer S N Roy accused of sexual exploitation
Published: 2015/04/15
Channel: Dayandnightnews Chd
25th Marriage Anniversary- Mr S. N. Roy and Mrs. Shyamli Roy- 1
25th Marriage Anniversary- Mr S. N. Roy and Mrs. Shyamli Roy- 1
Published: 2017/05/03
Channel: Sourabh Roy
25th Marriage Anniversary- Mr S. N. Roy and Mrs. Shyamli Roy- 3
25th Marriage Anniversary- Mr S. N. Roy and Mrs. Shyamli Roy- 3
Published: 2017/05/03
Channel: Sourabh Roy
SN Roy Sexual Abuse Case : Court  Dismissed  Woman
SN Roy Sexual Abuse Case : Court Dismissed Woman's petition
Published: 2015/05/21
Channel: FOCUS Haryana
BIR CHILARAI promo Assamese movie
BIR CHILARAI promo Assamese movie
Published: 2013/07/09
Channel: Angshuman NARAYAN DEV
Sexual Harassment Case: SIT to probe charges against IAS officer accuser is not satisfied
Sexual Harassment Case: SIT to probe charges against IAS officer accuser is not satisfied
Published: 2015/04/20
Channel: FOCUS Haryana
Sexual harassment case: Woman requested governor for registration of an FIR against SN Roy
Sexual harassment case: Woman requested governor for registration of an FIR against SN Roy
Published: 2015/04/17
Channel: Dayandnightnews Chd
Chilarai Sena Satantra r Abastan Dhormoghpt
Chilarai Sena Satantra r Abastan Dhormoghpt
Published: 2014/11/27
Channel: sentinel assam
BIR CHILARAI promo Assamese movie
BIR CHILARAI promo Assamese movie
Published: 2013/07/09
Channel: Angshuman NARAYAN DEV
MOV0047A
MOV0047A
Published: 2016/03/18
Channel: Shuvo Mazumder
2017 New Hd gajan Bapi 8768202853  Mandir tala new kali Bajar
2017 New Hd gajan Bapi 8768202853 Mandir tala new kali Bajar
Published: 2017/01/25
Channel: Bapi Pandit
SAMARENDRANATH SIKDAR
SAMARENDRANATH SIKDAR
Published: 2013/04/15
Channel: Bihaan Music
Putala Ghar(1976) // চোৱা চোৱা কথা কোৱা // Dwipen Barua
Putala Ghar(1976) // চোৱা চোৱা কথা কোৱা // Dwipen Barua's hits- Kashmiri Saikia Special //
Published: 2017/07/04
Channel: Tridip Ch. Goswami
Oh,Calcutta
Oh,Calcutta
Published: 2016/11/30
Channel: SN Roy
Tomar Parash | Rabindrasangeet | Samarendra Dutta | Bengali Tagore Songs by Samarendra Dutta
Tomar Parash | Rabindrasangeet | Samarendra Dutta | Bengali Tagore Songs by Samarendra Dutta
Published: 2016/06/16
Channel: INRECO BENGALI CLASSICS
Dhakinesware Sri Ramkrishna | Bengali Devotional | Sreekumar Chattopadhyay | Sanjib Chattopadhyay
Dhakinesware Sri Ramkrishna | Bengali Devotional | Sreekumar Chattopadhyay | Sanjib Chattopadhyay
Published: 2016/06/08
Channel: INRECO BENGALI CLASSICS
CM Tarun Gogoi paying tribute to Bir Chilarai
CM Tarun Gogoi paying tribute to Bir Chilarai
Published: 2016/02/23
Channel: CM Tarun Gogoi
TOMAR TARAY BHARA  Banasri Sengupta Katha Samarendra Sengupta SurAloknath Dey Ramyageeti
TOMAR TARAY BHARA Banasri Sengupta Katha Samarendra Sengupta SurAloknath Dey Ramyageeti
Published: 2014/10/06
Channel: pikeyenL7
P.  V.  Jacob (81) | Funeral Service
P. V. Jacob (81) | Funeral Service
Published: 2017/08/19
Channel: Thoolika Stream
Chila Roy Gan Maharaja 5
Chila Roy Gan Maharaja 5
Published: 2014/04/26
Channel: The Greater Cooch Behar People's Association
Dancing peacock in Madurai
Dancing peacock in Madurai
Published: 2016/08/18
Channel: SN Roy
Best of Arnob | Bengali Modern Songs | Se Jey Bosey Aachhe | Songs of Bangladesh
Best of Arnob | Bengali Modern Songs | Se Jey Bosey Aachhe | Songs of Bangladesh
Published: 2016/07/12
Channel: INRECO BENGALI CLASSICS
AMAR EI BEBHUL PRANE  Shyamal Mitra Katha Dilip Biswas Sur Aloknath Dey Akashvani Ramyageeti
AMAR EI BEBHUL PRANE Shyamal Mitra Katha Dilip Biswas Sur Aloknath Dey Akashvani Ramyageeti
Published: 2015/12/01
Channel: pikeyenL7
Snapshot of Taj Mahal visit on 13th October,2016
Snapshot of Taj Mahal visit on 13th October,2016
Published: 2016/10/19
Channel: SN Roy
Screwed up magnetic force
Screwed up magnetic force
Published: 2016/10/25
Channel: SN Roy
Among peacocks
Among peacocks
Published: 2016/08/22
Channel: SN Roy
OBM - Mathematician - Marko Sodnig (1729-1800)
OBM - Mathematician - Marko Sodnig (1729-1800)
Published: 2017/01/12
Channel: Our Best Moments
Review of a multi feature ball pen
Review of a multi feature ball pen
Published: 2016/09/22
Channel: SN Roy
3rd Sujit Mukherjee Memorial Lecture at CCL, University of Hyderabad
3rd Sujit Mukherjee Memorial Lecture at CCL, University of Hyderabad
Published: 2016/04/16
Channel: Md Intaj ali
DURE OI PIYALSHAKHAY Pratima Bandyo. Katha Shyamal Gupta Sur Aloknath Dey Akashvani Ramyageeti
DURE OI PIYALSHAKHAY Pratima Bandyo. Katha Shyamal Gupta Sur Aloknath Dey Akashvani Ramyageeti
Published: 2015/12/07
Channel: pikeyenL7
Funda of ball,roller and gel pen
Funda of ball,roller and gel pen
Published: 2016/09/13
Channel: SN Roy
TUMI ASBE BOLE  Gayatri Basu Katha Pranab Roy Sur Durga Sen Akashvani Ramyageeti
TUMI ASBE BOLE Gayatri Basu Katha Pranab Roy Sur Durga Sen Akashvani Ramyageeti
Published: 2015/12/07
Channel: pikeyenL7
AMAY TUMI JARIYE DILE Manabendra Mukho.  Katha Pulak Bandyo. Sur Duni Chand Baral  Ramyageeti
AMAY TUMI JARIYE DILE Manabendra Mukho. Katha Pulak Bandyo. Sur Duni Chand Baral Ramyageeti
Published: 2015/12/01
Channel: pikeyenL7
Kumortuli ,23 rd September 2016
Kumortuli ,23 rd September 2016
Published: 2016/09/23
Channel: SN Roy
Rangmashal
Rangmashal
Published: 2015/07/20
Channel: Samarendra Nath
O banshi radha radha  AIR Ramyageeti Madhuri Chatopadhay Lyric Sandip Chattopadhyay Music Krishna Ch
O banshi radha radha AIR Ramyageeti Madhuri Chatopadhay Lyric Sandip Chattopadhyay Music Krishna Ch
Published: 2014/12/09
Channel: eladey1949
Veer Shaheed Cornal Muninder Nath GAZIPUR KAND | वीर शहीद कर्नल ग़ाज़ीपुर कांड | Bhojpuri Birha Dangal
Veer Shaheed Cornal Muninder Nath GAZIPUR KAND | वीर शहीद कर्नल ग़ाज़ीपुर कांड | Bhojpuri Birha Dangal
Published: 2015/03/19
Channel: Chanda
Bengali Folk Songs | Mahul Band | Marang Buru Turu Ruru | Lalangeeti | Jhumur | Audio Jukebox
Bengali Folk Songs | Mahul Band | Marang Buru Turu Ruru | Lalangeeti | Jhumur | Audio Jukebox
Published: 2016/06/14
Channel: INRECO BENGALI CLASSICS
Antul bnatul samla AIR Ramyageeti Bani ghoshal Lyric Shibdas Bandyopadhyay Music Aloknath Dey
Antul bnatul samla AIR Ramyageeti Bani ghoshal Lyric Shibdas Bandyopadhyay Music Aloknath Dey
Published: 2014/12/30
Channel: eladey1949
The magic ring
The magic ring
Published: 2016/09/27
Channel: SN Roy
Saghano Baroshay AIR Ramyageeti Tarun Bandyopadhyay Lyric Not Known Music Aloknath Dey
Saghano Baroshay AIR Ramyageeti Tarun Bandyopadhyay Lyric Not Known Music Aloknath Dey
Published: 2014/12/09
Channel: eladey1949
Dukher path dhore  AIR Ramyageeti Meena Kapur Lyric Unknown Music Aloknath Dey
Dukher path dhore AIR Ramyageeti Meena Kapur Lyric Unknown Music Aloknath Dey
Published: 2014/12/28
Channel: eladey1949
A magic ring
A magic ring
Published: 2016/08/11
Channel: SN Roy
Rathayatra Live, PURI, Orissa.mp4
Rathayatra Live, PURI, Orissa.mp4
Published: 2011/07/14
Channel: viewRajeshPatel
Windmill TDA 129 at Amuthapuram and Techno team
Windmill TDA 129 at Amuthapuram and Techno team
Published: 2016/08/20
Channel: SN Roy
Gan geye bela AIR Ramyageeti Shankarlal Mukhopadhya,Sumitra Sen Ly Shyamal Gupta Mu Aloknath Dey
Gan geye bela AIR Ramyageeti Shankarlal Mukhopadhya,Sumitra Sen Ly Shyamal Gupta Mu Aloknath Dey
Published: 2014/11/24
Channel: eladey1949
Dure oi piyal shakhay AIR Ramyageeti Pratima Bandyopadhyay Lyric Shyamal Gupta Music Aloknath Dey
Dure oi piyal shakhay AIR Ramyageeti Pratima Bandyopadhyay Lyric Shyamal Gupta Music Aloknath Dey
Published: 2015/02/11
Channel: pujan kumar daripa
Amar ei bebhul AIR Ramyageeti Shyamal Mitra Lyric Dilip Biswas Tune Aloknath Dey
Amar ei bebhul AIR Ramyageeti Shyamal Mitra Lyric Dilip Biswas Tune Aloknath Dey
Published: 2014/11/20
Channel: eladey1949
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WIKIPEDIA ARTICLE

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S.N. Roy
SamarendraNathRoy.jpg
Samarendra Nath Roy
Native name সমরেন্দ্রনাথ রায়
Born (1906-12-11)11 December 1906
Calcutta, India
Died 23 July 1964(1964-07-23) (aged 57)
Jasper, Alberta, Canada
Residence India, US
Citizenship United States
Alma mater Calcutta University
Known for Multivariate analysis
Scientific career
Fields Mathematician and Statistician
Institutions Calcutta University
Indian Statistical Institute
University of North Carolina, Chapel Hill
Doctoral advisor P. C. Mahalanobis
N. R. Sen
Doctoral students Ingram Olkin

Samarendra Nath Roy or S. N. Roy (11 December 1906 – 23 July 1964) was an Indian-born American mathematician and an applied statistician.

Early life[edit]

Roy was the first of three children of Kali Nath Roy and Suniti Bala Roy.[1] His father, Kali Nath Roy was a freedom fighter and the Chief Editor of the newspaper The Tribune, then publishing from Lahore.[2] During the massacre of the Indians at the hands of the British in the infamous incident at Jallianwala Bagh in April 1919, The Tribune published a news report titled "Prayer at the Jama Masjid", on 6 April 1919. For this "offence" Kali Nath Roy was sentenced to rigorous imprisonment for two years along with a fine of one thousand rupees.[3][4][5][6]

Roy secured first division in the Matriculation Examination in 1923 from the Khulna District School.[6] He was the topper in the Intermediate Science (Higher Secondary) Examinations in 1925 from the Daulatpur Hindu Academy.[6] He obtained first class and was the topper in both the BSc Mathematics (Honours) from Presidency College of the University of Calcutta in 1928 and the MSc in Applied Mathematics (with the Theory of Relativity as the elective) from the University of Calcutta in 1931.[1][6]

Academic career[edit]

In 1931, when Roy joined the Department of Applied Mathematics at the University of Calcutta as a research associate, he used computing facilities at the newly established Indian Statistical Institute,[6] which was founded by Professor P. C. Mahalanobis. Roy along with several talented young scholars including J. M. Sengupta, H. C. Sinha, Raj Chandra Bose, K. R. Nair, K. Kishen and C. R. Rao, joined to form an active group of statisticians under Mahalanobis. Roy was one of the very early students of Mahalanobis, who initiated some of the early works in Statistics.[7] He was well known for his pioneering contribution to multivariate statistical analysis, mainly that of the Jacobians of complicated transformations for various exact distributions, rectangular coordinates and the Bartlett decomposition.[8] His dissertation included the Post master's work at the Indian Statistical Institute where he worked under Mahalanobis.[9]

It was Bose who first went to the United States as a visiting professor at Columbia University and then joined the University of North Carolina at Chapel Hill in 1947. Roy followed suit by later joining him at the University of North Carolina at Chapel Hill in the spring of 1950, after initially travelling to the United States to take up a Visiting Professorship of Statistics at Columbia University in New York in the spring of 1949. In between this Roy returned to India and became Head of the Department of Statistics at the University of Calcutta during the academic year 1949–50.[6] Roy joined Bose as full Professor of Statistics in the Statistics Department at the University of North Carolina at Chapel Hill. S. N. Roy had 15 doctorate students there from 1950 till 1963.[10] To commemorate his Birth Centenary an International Conference on "Multivariate Statistical Methods in the 21st Century: The Legacy of Prof. S.N. Roy" was held at Kolkata, India during 28–29 December 2006.[11] The Journal of Statistical Planning and Inference published a special Issue for celebrating the Centennial of Birth of S. N. Roy.[7]

Personal life[edit]

Roy was married to Bani Roy and had four children, Prabir, Subir, Tapon and Sunanda. He died while on holiday in Jasper, Canada. His eldest son, Prabir Roy was also a mathematician, who obtained his PhD from the University of North Carolina at Chapel Hill in 1962. His dissertation was on the "Separability of Metric Spaces".[12] He later went on to become full Professor at a young age at the Binghamton University.

S. N. Roy is presently being survived by his son Subir Roy who is an MD, Obstetrician & Gynecologist, Reproductive Endocrinologist at the LAC+USC Medical Center, LA,[13] and his daughter Sunanda R. McGarvey who works at the National Center of Public Health Informatics, CDC in Washington, DC.

Selected publications[edit]

  • Potthoff, R. F. and Roy, S. N. (1964), “A generalized multivariate analysis of variance model useful especially for growth curve problems”, Biometrika, vol. 51, pp. 313–326.
  • Roy, S. N. (1957), “Some Aspects of Multivariate Analysis”, New York: Wiley.
  • Roy, S. N. and Sarhan, A. E. (1956), “On inverting a class of patterned matrices”, Biometrika, 43, 227–231.

Selected Ph.D. dissertations under Roy's guidance[edit]

  • Olkin, Ingram (1951). "On distribution problems in multivariate analysis".
  • Pachares, James (1953). "On the distribution of quadratic forms".
  • Pillai, K.C. Sreedharan (1954). "On some distribution problems in multivariate analysis".
  • Mitra, Sujit K. (1956).[14] "Contributions to the statistical analysis of categorical data".
  • Gnanadesikan, Ramanathan (1957). "Contributions to multivariate analysis including univariate and multivariate variance components analysis and factor analysis".
  • Potthoff, Richard F. (1958). "Multi-dimensional incomplete block designs".
  • Diadmond, Earl L. (1958). "Asymptotic power and independence of certain classes of tests on categorical data".
  • Bargman, Rolf (1958). "A study of independence and dependence in multivariate normal analysis".
  • Cobb, Whitfield (1959). "Studies in univariate and multivariate variance components analysis connected with sampling from a finite population".
  • Bhapkar, Vasant P. (1959). "Contributions to the statistical analysis of experiments with one or more responses".
  • Sathe, Yashawande S. (1962). "Studies in certain types of nonparametric inference".
  • Das Gupta, Somesh (1963). "Some problems in classification".
  • Mudholkar, Govind S. (1963). "Some contributions to the theory of univariate and multivariate statistical analysis".

Sources:[7][9][15]

Recognition[edit]

References[edit]

  1. ^ a b Bose, R. C. (1964). "Samarendra Nath Roy, December 11, 1906-July 23, 1964". The American Statistician. American Statistical Association. 18 (5): 26–27. JSTOR 2682467. doi:10.1080/00031305.1964.10482640. 
  2. ^ "Tribuneindia...119 Years of Trust". The Tribune. Retrieved 21 January 2013. 
  3. ^ Varinder Walia; Neeraj Bagga (13 April 2006). "Jallianwala Bagh revisited". The Tribune. Retrieved 21 January 2013. 
  4. ^ Gobind Thukral. "EDITORIAL PAGE; LOOKING BACK; How 1919 Punjab rebellion was suppressed". The Tribune. Retrieved 5 August 2013. 
  5. ^ Viscount Cave, J. "Kali Nath Roy vs The King-Emperor on 9 December, 1920". Indian Kanoon – Search engine for Indian Law. Retrieved 24 July 2013. 
  6. ^ a b c d e f J J O'Connor; E F Robertson. "Roy Biography". MacTutor History of Mathematics archive. Retrieved 21 January 2013. 
  7. ^ a b c Govind S. Mudholkar; Alan D. Hutsonb; Michael P. McDermotta. "Life and legacy of Samarendra Nath Roy 1906–1964". ScienceDirect. Retrieved 21 January 2013. 
  8. ^ V. Mardia, Kanti (23 January 2008). "On S.N. Roy's Legacy to Multivariate Analysis" (PDF). Presented as a plenary talk to S. N. Roy Multivariate Conference, Kolkata (December 2006). Retrieved 26 October 2012. 
  9. ^ a b Samarendra Nath Roy at the Mathematics Genealogy Project
  10. ^ "PhDs Awarded". Department of Statistics and Operations Research, University of North Carolina at Chapel Hill. Retrieved 21 January 2013. 
  11. ^ "Multivariate Statistical Methods in the 21st Century: The Legacy of Prof. S.N. Roy". Indian Statisticl Institute. 2006. Retrieved 18 February 2013. 
  12. ^ Prabir Roy at the Mathematics Genealogy Project
  13. ^ "Subir Roy, M.D.". USC OBGYN Faculty, University of Southern California. Retrieved 5 August 2013. 
  14. ^ Bhimasankaram, P (2004). "Sujit Kumar Mitra (1932–2004)" (PDF). Current Science. 87 (3): 395. 
  15. ^ "PhDs awarded". The Department of Statistics and Operations Research at UNC. 

External links[edit]

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