Thomas Jones Enright | |
|---|---|
 | |
| Born | August 15, 1947 Concord, New Hampshire, United States |
| Died | January 27, 2019 (aged 71) San Diego, California, United States |
| Alma mater | Harvard University B.S. & University of Washington Ph.D. |
| Awards | Alfred P. Sloan Research Fellowship |
| Scientific career | |
| Fields | Mathematics |
| Institutions | UCSD |
| Doctoral advisor | Ramesh A. Gangolli |
Thomas Jones Enright (August 15, 1947 – January 27, 2019) was an American mathematician known for his work in the algebraic theory of representations of real reductive Lie groups.
Biography
Enright received a B.S. from Harvard University in 1969 and a Ph.D. in 1973 from the University of Washington under the direction of Ramesh A. Gangolli. From 1973 to 1975 he was the Hedrick Assistant Professor in UCLA working with Veeravalli S. Varadarajan, and spent the 1976-1977 year after in the Institute for Advanced Study at Princeton, N. J. before starting at University of California at San Diego in 1977. He was chair of the mathematics department of UCSD from 1986 to 1990. [1] In 2010 he retired due to symptoms of Parkinson's disease.
Contributions
In the mid-1970s, Enright introduced new methods that led him to an algebraic way of looking at discrete series (which were fundamental representations constructed by Harish-Chandra in the early 1960s), and to an algebraic proof of the Blattner multiplicity formula.
He was known for Enright–Varadarajan modules, [2] [3] Enright resolutions, and the Enright completion functor, [4] [5] [6] [7] which has had a lasting influence in algebra.
Recognition
- Recipient of Alfred P. Sloan Fellowship, 1978 [8]
- Enright's work was the subject of a Bourbaki Seminar by Michel Duflo [9]
Bibliography
- Enright, Thomas J (1979). "On the Fundamental Series of a Real Semisimple Lie Algebra: Their Irreducibility, Resolutions and Multiplicity Formulae". Annals of Mathematics. 110 (1): 1–82. doi: 10.2307/1971244. JSTOR 1971244.
- Enright, Thomas J.; Varadarajan, V. S. (1975). "On an Infinitesimal Characterization of the Discrete Series". Annals of Mathematics. 102 (1): 1–15. doi: 10.2307/1970970. JSTOR 1970970.
- Enright, Thomas; Howe, Roger; Wallach, Nolan (1983-01-01). Trombi, P. C., ed. A Classification of Unitary Highest Weight Modules. Progress in Mathematics. Birkhäuser Boston. pp. 97–143. doi:10.1007/978-1-4684-6730-7_7. ISBN 9780817631352.
- Enright, T. J.; Wallach, N. R. (1980). "Notes on homological algebra and representations of Lie algebras". Duke Mathematical Journal. 47 (1): 1–15. doi: 10.1215/S0012-7094-80-04701-8.
- Davidson, Mark G.; Enright, Thomas J.; Stanke, Ronald J. (1991). "Differential operators and highest weight representations". Memoirs of the American Mathematical Society. 94 (455): 0. doi: 10.1090/memo/0455.
- Enright, Thomas J.; Hunziker, Markus; Pruett, W. Andrew (2014-01-01). Howe, Roger; Hunziker, Markus; Willenbring, Jeb F., eds. Diagrams of Hermitian type, highest weight modules, and syzygies of determinantal varieties. Progress in Mathematics. Springer New York. pp. 121–184. doi:10.1007/978-1-4939-1590-3_6. ISBN 9781493915897.
- Enright, Thomas J (1978). "On the algebraic construction and classification of Harish-Chandra modules". Proceedings of the National Academy of Sciences. 75 (3): 1063–1065. Bibcode: 1978PNAS...75.1063E. doi: 10.1073/pnas.75.3.1063. PMC 411407. PMID 16592507.
References
- ^ Support, Math Computing. "UCSD Math | Department History". www.math.ucsd.edu. Retrieved 2016-03-15.
- ^ Wallach, Nolan R. (1976-01-01). "On the Enright–Varadarajan modules: A construction of the discrete series". Annales Scientifiques de l'École Normale Supérieure. Série 4. 9: 81–101. doi: 10.24033/asens.1304. ISSN 0012-9593.
- ^ "Parthasarathy: A generalization of the Enright–Varadarajan modules". www.numdam.org. Retrieved 2016-04-23.
- ^ König, Steffen; Mazorchuk, Volodymyr (2002-01-01). "Enright's completions and injectively copresented modules". Transactions of the American Mathematical Society. 354 (7): 2725–2743. doi: 10.1090/S0002-9947-02-02958-6. ISSN 0002-9947.
- ^ Jakelić, Dijana (2007-06-01). "On crystal bases and Enright's completions". Journal of Algebra. 312 (1): 111–131. arXiv: math/0512506. doi: 10.1016/j.jalgebra.2006.11.045. S2CID 120487.
- ^ Khomenko, Oleksandr; Mazorchuk, Volodymyr (2004-10-15). "On Arkhipov's and Enright's functors". Mathematische Zeitschrift. 249 (2): 357–386. doi: 10.1007/s00209-004-0702-8. ISSN 0025-5874. S2CID 121941150.
- ^ Deodhar, Vinay V. (1980-06-01). "On a construction of representations and a problem of Enright". Inventiones Mathematicae. 57 (2): 101–118. Bibcode: 1980InMat..57..101D. doi: 10.1007/BF01390091. ISSN 0020-9910. S2CID 121286075.
- ^ "Past Fellows". www.sloan.org. Retrieved 2016-03-29.
- ^ Duflo, Michel (1979-01-01). "Représentations de carré intégrable des groupes semi-simples réels". Séminaire Bourbaki vol. 1977/78 Exposés 507–524. Lecture Notes in Mathematics (in French). Vol. 710. Springer Berlin Heidelberg. pp. 22–40. doi: 10.1007/bfb0069971. ISBN 9783540092438.
External links
- Thomas Jones Enright at the Mathematics Genealogy Project
- Homepage of Thomas Jones Enright
- Thomas Jones Enright's obituary
| International | |
|---|---|
| National | |
| Academics | |
| Other | |
Thomas Jones Enright | |
|---|---|
|
| |
| Born | August 15, 1947 Concord, New Hampshire, United States |
| Died | January 27, 2019 (aged 71) San Diego, California, United States |
| Alma mater | Harvard University B.S. & University of Washington Ph.D. |
| Awards | Alfred P. Sloan Research Fellowship |
| Scientific career | |
| Fields | Mathematics |
| Institutions | UCSD |
| Doctoral advisor | Ramesh A. Gangolli |
Thomas Jones Enright (August 15, 1947 – January 27, 2019) was an American mathematician known for his work in the algebraic theory of representations of real reductive Lie groups.
Biography
Enright received a B.S. from Harvard University in 1969 and a Ph.D. in 1973 from the University of Washington under the direction of Ramesh A. Gangolli. From 1973 to 1975 he was the Hedrick Assistant Professor in UCLA working with Veeravalli S. Varadarajan, and spent the 1976-1977 year after in the Institute for Advanced Study at Princeton, N. J. before starting at University of California at San Diego in 1977. He was chair of the mathematics department of UCSD from 1986 to 1990. [1] In 2010 he retired due to symptoms of Parkinson's disease.
Contributions
In the mid-1970s, Enright introduced new methods that led him to an algebraic way of looking at discrete series (which were fundamental representations constructed by Harish-Chandra in the early 1960s), and to an algebraic proof of the Blattner multiplicity formula.
He was known for Enright–Varadarajan modules, [2] [3] Enright resolutions, and the Enright completion functor, [4] [5] [6] [7] which has had a lasting influence in algebra.
Recognition
- Recipient of Alfred P. Sloan Fellowship, 1978 [8]
- Enright's work was the subject of a Bourbaki Seminar by Michel Duflo [9]
Bibliography
- Enright, Thomas J (1979). "On the Fundamental Series of a Real Semisimple Lie Algebra: Their Irreducibility, Resolutions and Multiplicity Formulae". Annals of Mathematics. 110 (1): 1–82. doi: 10.2307/1971244. JSTOR 1971244.
- Enright, Thomas J.; Varadarajan, V. S. (1975). "On an Infinitesimal Characterization of the Discrete Series". Annals of Mathematics. 102 (1): 1–15. doi: 10.2307/1970970. JSTOR 1970970.
- Enright, Thomas; Howe, Roger; Wallach, Nolan (1983-01-01). Trombi, P. C., ed. A Classification of Unitary Highest Weight Modules. Progress in Mathematics. Birkhäuser Boston. pp. 97–143. doi:10.1007/978-1-4684-6730-7_7. ISBN 9780817631352.
- Enright, T. J.; Wallach, N. R. (1980). "Notes on homological algebra and representations of Lie algebras". Duke Mathematical Journal. 47 (1): 1–15. doi: 10.1215/S0012-7094-80-04701-8.
- Davidson, Mark G.; Enright, Thomas J.; Stanke, Ronald J. (1991). "Differential operators and highest weight representations". Memoirs of the American Mathematical Society. 94 (455): 0. doi: 10.1090/memo/0455.
- Enright, Thomas J.; Hunziker, Markus; Pruett, W. Andrew (2014-01-01). Howe, Roger; Hunziker, Markus; Willenbring, Jeb F., eds. Diagrams of Hermitian type, highest weight modules, and syzygies of determinantal varieties. Progress in Mathematics. Springer New York. pp. 121–184. doi:10.1007/978-1-4939-1590-3_6. ISBN 9781493915897.
- Enright, Thomas J (1978). "On the algebraic construction and classification of Harish-Chandra modules". Proceedings of the National Academy of Sciences. 75 (3): 1063–1065. Bibcode: 1978PNAS...75.1063E. doi: 10.1073/pnas.75.3.1063. PMC 411407. PMID 16592507.
References
- ^ Support, Math Computing. "UCSD Math | Department History". www.math.ucsd.edu. Retrieved 2016-03-15.
- ^ Wallach, Nolan R. (1976-01-01). "On the Enright–Varadarajan modules: A construction of the discrete series". Annales Scientifiques de l'École Normale Supérieure. Série 4. 9: 81–101. doi: 10.24033/asens.1304. ISSN 0012-9593.
- ^ "Parthasarathy: A generalization of the Enright–Varadarajan modules". www.numdam.org. Retrieved 2016-04-23.
- ^ König, Steffen; Mazorchuk, Volodymyr (2002-01-01). "Enright's completions and injectively copresented modules". Transactions of the American Mathematical Society. 354 (7): 2725–2743. doi: 10.1090/S0002-9947-02-02958-6. ISSN 0002-9947.
- ^ Jakelić, Dijana (2007-06-01). "On crystal bases and Enright's completions". Journal of Algebra. 312 (1): 111–131. arXiv: math/0512506. doi: 10.1016/j.jalgebra.2006.11.045. S2CID 120487.
- ^ Khomenko, Oleksandr; Mazorchuk, Volodymyr (2004-10-15). "On Arkhipov's and Enright's functors". Mathematische Zeitschrift. 249 (2): 357–386. doi: 10.1007/s00209-004-0702-8. ISSN 0025-5874. S2CID 121941150.
- ^ Deodhar, Vinay V. (1980-06-01). "On a construction of representations and a problem of Enright". Inventiones Mathematicae. 57 (2): 101–118. Bibcode: 1980InMat..57..101D. doi: 10.1007/BF01390091. ISSN 0020-9910. S2CID 121286075.
- ^ "Past Fellows". www.sloan.org. Retrieved 2016-03-29.
- ^ Duflo, Michel (1979-01-01). "Représentations de carré intégrable des groupes semi-simples réels". Séminaire Bourbaki vol. 1977/78 Exposés 507–524. Lecture Notes in Mathematics (in French). Vol. 710. Springer Berlin Heidelberg. pp. 22–40. doi: 10.1007/bfb0069971. ISBN 9783540092438.
External links
- Thomas Jones Enright at the Mathematics Genealogy Project
- Homepage of Thomas Jones Enright
- Thomas Jones Enright's obituary
| International | |
|---|---|
| National | |
| Academics | |
| Other | |