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and the
Birkhoff–Lewis conjecture. She determined that, "because of the fact that all other cubic maps with fewer than 20 regions contain at least one absolutely reducible configuration, it follows that the Birkhoff-Lewis conjecture holds for all maps with fewer than 20 regions." Her Ph.D. advisor
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since 1963 and was 87 years old at the time of her death. She was survived by her husband of 64 years of marriage, Arthur Bari (1913–2006). In addition to their three daughters, they had two grandchildren, including
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She returned to Johns
Hopkins for graduate work, and completed her dissertation on "absolute reducibility of maps of at most 19 regions" in 1966 at the age of 47. Bari's dissertation explored
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which protested inequalities in promotion and pay for female faculty members. The protests were successful. Notable students of Bari include Carol
Crawford, Steven Kahn, and Lee Lawrence.
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in 1943, but had originally enrolled in the doctoral program. When the university suggested that women in the graduate program should give up their fellowships so that men returning from
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313:(1949–1997) was a leading labor and environmental activist and feminist, who lived and worked in Northern California. She survived an assassination attempt in 1990.
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to start a master's degree program in teaching mathematics. She felt that math teachers in DC public schools were not as well prepared as they needed to be.
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could study, Bari acceded. After marrying Arthur Bari, she spent the next two decades devoted to their family. They had three daughters together.
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In 1976, two professors relied on computer work to solve the perennial problem of Bari's dissertation, involving the
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Bari, Ruth. Abstract: “Absolute
Reducibility of Maps of at Most 19 Regions.” Biographies of Women Mathematicians
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immigrants to the United States, Ruth
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During her teaching career, Bari participated in a class-action lawsuit against
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Bari retired at the legally mandated age of 70 in 1988 with the distinction of
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invited Bari to spend two weeks lecturing on her work in Canada at the
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community. In the early 1970s, Bari used a grant from the
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is a mathematics, health and science journalist for the
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Her three daughters became influential in their fields.
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was Daniel Clark Lewis, Jr. and her thesis was titled,
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Bari died on August 25, 2005, from complications of
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399:Riddle, Larry; Kolata, Gina (February 25, 2016).
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261:After she received her degree, mathematician
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538:21st-century American women mathematicians
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503:American people of Polish-Jewish descent
234:in mathematics in 1939. She earned her
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281:George Washington University
201:George Washington University
177:George Washington University
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294:Community and personal life
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158:Daniel Clark Lewis, Jr.
75:Silver Spring, Maryland
267:University of Waterloo
16:American mathematician
274:four-color conjecture
251:chromatic polynomials
203:, beginning in 1966.
172:Georgetown University
439:"Ruth Aaronson Bari"
401:"Ruth Aaronson Bari"
323:. Martha Bari is an
406:Agnes Scott College
342:. She had lived in
340:Alzheimer's disease
121:Academic background
333:Fredrick, Maryland
288:professor emeritus
189:Ruth Aaronson Bari
56:Brooklyn, New York
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232:bachelor's degree
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69:(2005-08-25)
493:2005 deaths
488:1917 births
315:Gina Kolata
100:Gina Kolata
86:Arthur Bari
482:Categories
412:2021-02-27
378:2021-02-27
355:References
238:degree at
127:Alma mater
48:1917-11-17
349:Lisa Bari
311:Judi Bari
110:Lisa Bari
106:Relatives
96:Judi Bari
221:New York
217:Brooklyn
91:Children
207:Career
144:Thesis
83:Spouse
77:, US
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