253:
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
346:
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
276:. When her daughter Martha asked her if she felt cheated by the technological solution, Bari replied, "I’m just grateful that it was solved within my lifetime and that I had the privilege to witness it."
249:
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
283:
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.
242:
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
31:
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.
306:
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.
332:
537:
532:
502:
246:
could study, Bari acceded. After marrying Arthur Bari, she spent the next two decades devoted to their family. They had three daughters together.
527:
517:
512:
507:
269:. Bari's work in the areas of graph theory and homomorphisms—and especially chromatic polynomials—has been recognized as influential.
497:
463:
368:
272:
In 1976, two professors relied on computer work to solve the perennial problem of Bari's dissertation, involving the
542:
425:
Bari, Ruth. Abstract: “Absolute
Reducibility of Maps of at Most 19 Regions.” Biographies of Women Mathematicians
446:
280:
200:
176:
303:
522:
239:
136:
343:
74:
339:
266:
171:
492:
487:
250:
231:
215:
immigrants to the United States, Ruth
Aaronson was born November 17, 1917, and grew up in
191:(November 17, 1917 – August 25, 2005) was an American mathematician known for her work in
8:
405:
273:
400:
287:
55:
299:
227:
220:
131:
438:
279:
During her teaching career, Bari participated in a class-action lawsuit against
319:
286:
Bari retired at the legally mandated age of 70 in 1988 with the distinction of
235:
481:
262:
212:
328:
243:
196:
192:
324:
314:
99:
265:
invited Bari to spend two weeks lecturing on her work in Canada at the
126:
348:
310:
109:
95:
464:"Dr. Ruth Aaronson Bari, 87, Dies; Professor of Mathematics at GWU"
216:
143:
30:
302:
community. In the early 1970s, Bari used a grant from the
317:
is a mathematics, health and science journalist for the
309:
Her three daughters became influential in their fields.
254:
was Daniel Clark Lewis, Jr. and her thesis was titled,
338:
Bari died on August 25, 2005, from complications of
256:
149:
458:
456:
399:Riddle, Larry; Kolata, Gina (February 25, 2016).
479:
453:
293:
261:After she received her degree, mathematician
398:
538:21st-century American women mathematicians
533:20th-century American women mathematicians
29:
503:American people of Polish-Jewish descent
234:in mathematics in 1939. She earned her
528:20th-century American women scientists
480:
518:George Washington University faculty
513:21st-century American mathematicians
508:20th-century American mathematicians
433:
431:
394:
392:
390:
388:
13:
14:
554:
428:
385:
369:"Bari, Ruth Aaronson 1917–2005"
419:
361:
1:
447:North Dakota State University
445:. Department of Mathematics,
443:Mathematics Genealogy Project
354:
281:George Washington University
201:George Washington University
177:George Washington University
7:
304:National Science Foundation
294:Community and personal life
10:
559:
498:Jewish American scientists
206:
199:. She was a professor at
182:
167:
162:
154:
142:
125:
120:
116:
105:
90:
82:
63:
37:
28:
21:
240:Johns Hopkins University
137:Johns Hopkins University
543:Brooklyn College alumni
344:Silver Spring, Maryland
298:Bari was active in the
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
23:Ruth Aaronson Bari
232:bachelor's degree
186:
185:
52:November 17, 1917
550:
472:
471:
460:
451:
450:
435:
426:
423:
417:
416:
414:
413:
396:
383:
382:
380:
379:
373:Encyclopedia.com
365:
228:Brooklyn College
211:The daughter of
155:Doctoral advisor
132:Brooklyn College
70:
51:
49:
33:
19:
18:
558:
557:
553:
552:
551:
549:
548:
547:
523:Graph theorists
478:
477:
476:
475:
468:Washington Post
462:
461:
454:
437:
436:
429:
424:
420:
411:
409:
397:
386:
377:
375:
367:
366:
362:
357:
296:
209:
175:
135:
112:(granddaughter)
78:
72:
68:
67:August 25, 2005
59:
53:
47:
45:
44:
43:
24:
17:
12:
11:
5:
556:
546:
545:
540:
535:
530:
525:
520:
515:
510:
505:
500:
495:
490:
474:
473:
452:
427:
418:
384:
359:
358:
356:
353:
320:New York Times
300:Washington, DC
295:
292:
236:Master of Arts
230:, earning her
208:
205:
195:and algebraic
184:
183:
180:
179:
169:
165:
164:
160:
159:
156:
152:
151:
146:
140:
139:
129:
123:
122:
118:
117:
114:
113:
107:
103:
102:
92:
88:
87:
84:
80:
79:
73:
71:(aged 87)
65:
61:
60:
54:
41:
39:
35:
34:
26:
25:
22:
15:
9:
6:
4:
3:
2:
555:
544:
541:
539:
536:
534:
531:
529:
526:
524:
521:
519:
516:
514:
511:
509:
506:
504:
501:
499:
496:
494:
491:
489:
486:
485:
483:
470:. 2005-08-29.
469:
465:
459:
457:
448:
444:
440:
434:
432:
422:
408:
407:
402:
395:
393:
391:
389:
374:
370:
364:
360:
352:
350:
345:
341:
336:
334:
330:
326:
325:art historian
322:
321:
316:
312:
307:
305:
301:
291:
289:
284:
282:
277:
275:
270:
268:
264:
263:William Tutte
259:
257:
252:
247:
245:
241:
237:
233:
229:
226:She attended
224:
222:
218:
214:
213:Polish-Jewish
204:
202:
198:
197:homomorphisms
194:
190:
181:
178:
173:
170:
166:
163:Academic work
161:
157:
153:
150:
147:
145:
141:
138:
133:
130:
128:
124:
119:
115:
111:
108:
104:
101:
97:
94:3, including
93:
89:
85:
81:
76:
66:
62:
57:
42:Ruth Aaronson
40:
36:
32:
27:
20:
467:
442:
421:
410:. Retrieved
404:
376:. Retrieved
372:
363:
337:
329:Hood College
318:
308:
297:
285:
278:
271:
260:
255:
248:
244:World War II
225:
210:
193:graph theory
188:
187:
168:Institutions
148:
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
64:Died
58:, US
38:Born
331:in
327:at
484::
466:.
455:^
441:.
430:^
403:.
387:^
371:.
351:.
335:.
290:.
258:.
223:.
219:,
98:,
449:.
415:.
381:.
174:,
134:,
50:)
46:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
