Sargent was born into a Quaker family, daughter of Henry Sargent and Edith, his second wife, growing up in Fritchley, Derbyshire. She attended Ackworth School, a private school for Quakers, from 1915 to 1919. She then won a scholarship to attend The Mount School, York, another Quaker school, and later the Herbert Strutt School.[1] In 1923, while there, she won a Derby scholarship, a State Scholarship, and a Mary Ewart scholarship to attend Newnham College, Cambridge and study mathematics in 1924.
While at Newnham she won further awards: an Arthur Hugh Clough Scholarship in 1927, a Mary Ewart Travelling Scholarship and a Goldsmiths Company Senior Studentship both in 1928. She graduated with a First class degree and remained at Cambridge conducting research but was unsatisfied by her progress and left to teach mathematics at Bolton High School.
Bosanquet started a weekly seminar in mathematics in 1947, which Sargent attended without absence for twenty years until her retirement in 1967. She rarely presented at it, and did not attend mathematical conferences, despite being a compelling speaker.
Mathematical resultsedit
Much of Sargent's mathematical research involved studying types of integral, building on work done on Lebesgue integration and the Riemann integral. She produced results relating to the Perron and Denjoy integrals and Cesàro summation. Her final three papers consider BK-spaces or Banach coordinate spaces, proving a number of interesting results.[6]
as in much of Dr. Sargent's work, the arguments are pushed as far as they will go and counter examples given to show that the results are the best possible.
In her obituary, her work is described as being:[12]
marked by its exceptional lucidity, its exactness of expression and by the decisiveness of her results. She made important contributions to a field in which the complexity of the structure can only be revealed by subtle arguments.
Sargent, W. L. C. (1942b). "On sufficient conditions for a function integrable in the Cesàro–Perron sense to be monotonic". The Quarterly Journal of Mathematics. Oxford Series. 12 (1): 148–153. doi:10.1093/qmath/os-12.1.148.
Sargent, W. L. C. (1946a). "On the order of magnitude of the Fourier coefficients of a function integrable in the CλL sense". Journal of the London Mathematical Society. First Series. 21 (3): 198–203. doi:10.1112/jlms/s1-21.3.198.
Sargent, W. L. C. (1948b). "On the summability (C) of allied series and the existence of ". Proceedings of the London Mathematical Society. Second Series. 50 (1): 330–348. doi:10.1112/plms/s2-50.5.330.
Sargent, W. L. C. (1949). "On fractional integrals of a function integrable in the Cesàro-Perron sense". Proceedings of the London Mathematical Society. Second Series. 51 (1): 46–80. doi:10.1112/plms/s2-51.1.46.
Sargent, W. L. C. (1950a). "On linear functionals in spaces of conditionally integrable functions". The Quarterly Journal of Mathematics. Oxford Second Series. 1 (1): 288–298. Bibcode:1950QJMat...1..288S. doi:10.1093/qmath/1.1.288. hdl:10338.dmlcz/140532.
Sargent, W. L. C. (1950b). "On the continuity (C) and integrability (CP) of fractional integrals". Proceedings of the London Mathematical Society. Second Series. 52 (1): 253–270. doi:10.1112/plms/s2-52.4.253.
Sargent, W. L. C. (1951c). "2213. On the differentiation of a function of a function". The Mathematical Gazette. 35 (312): 121–122. doi:10.2307/3609346. JSTOR 3609346.
Sargent, W. L. C. (1952b). "Book review: Éléments de Mathématiques. XII by N. Bourbaki". The Mathematical Gazette. 36 (317): 216–217. doi:10.2307/3608266. JSTOR 3608266.
Sargent, W. L. C. (1952b). "Book review: Vorlesungen über Fouriersche Integrale by S. Bochner". The Mathematical Gazette. 36 (317): 217–218. doi:10.2307/3608268. JSTOR 3608268.
Sargent, W. L. C. (1953). "On some theorems of Hahn, Banach and Steinhaus". Journal of the London Mathematical Society. First Series. 28 (4): 438–451. doi:10.1112/jlms/s1-28.4.438.
Sargent, W. L. C. (1954). "Book review: Volume and Integral by W. W. Rogosinski". The Mathematical Gazette. 38 (323): 67. doi:10.2307/3609800. JSTOR 3609800.
Sargent, W. L. C. (1957a). "Some summability factor theorems for infinite integrals". Journal of the London Mathematical Society. First Series. 32 (4): 387–396. doi:10.1112/jlms/s1-32.4.387.
Sargent, W. L. C. (1961). "Some analogues and extensions of Marcinkiewicz's interpolation problem". Proceedings of the London Mathematical Society. Third Series. 11 (1): 457–468. doi:10.1112/plms/s3-11.1.457.
Sargent, W. L. C. (1964). "On sectionally bounded BK-spaces". Mathematische Zeitschrift. 83 (1): 57–66. doi:10.1007/BF01111108. S2CID 119753065.
Sargent, W. L. C. (1966). "On compact matrix transformations between sectionally bounded BK-spaces". Journal of the London Mathematical Society. First Series. 41 (1): 79–87. doi:10.1112/jlms/s1-41.1.79.
Notesedit
^"Winifred L. C. Sargent". Newsletter of the Association for Women in Mathematics (v. 11-15). Association for Women in Mathematics (U.S.): 7. 1981. Retrieved 25 March 2024.
^j. t. c (1950). "Report of the Meeting of the Teaching Committee. 5th January 1950". The Mathematical Gazette. 34 (307): 5–7. doi:10.1017/S0025557200023469. JSTOR 3610867., p. 6.
^Swartz, Charles (1992). An introduction to functional analysis. CRC Press. pp. 102–104. ISBN 978-0824786434. and Orlicz, Władysław (1992). Linear functional analysis. World Scientific Publishing. p. 125. ISBN 978-9810208530.
Ogilvie, Marilyn; Harvey, Joy (2000). The Biographical Dictionary of Women in Science: Pioneering Lives From Ancient Times to the Mid-20th Century. Routledge. pp. 1152–1153. ISBN 978-0415920384.