In this Spanish name, the first or paternal surname is de Neymet and the second or maternal family name is Urbina.
Sylvia de Neymet
Sylvia de Neymet Urbina (aka Silvia de Neymet de Christ, 1939 – 13 January 2003) was a Mexican mathematician, the first woman to earn a doctorate in mathematics in Mexico, and the first female professor in the faculty of sciences of the National Autonomous University of Mexico (UNAM).[1][2]
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