United States news brief
The 92-Year-Old Mathematician and the Teenage Apprentice
NEWS DESKUnited States
PUBLISHEDSep 6, 2026, 10:36 AM
What the source reports
Joan Birman thought her major discoveries were behind her. Then came an email from a young neighbor — a girl who knew little but wanted to learn.
Main source: AP News + Reuters + NYT
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