Thursday, December 19, 2019

Mabel Minerva Young

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'''Mabel Minerva Young''' (1872 to 1963) was an American mathematician active at [[Wellesley College]].

Mabel was born July 18, 1872 in [[Worcester, Massachusetts]]. She began study at Wellesley College in 1994. Going to graduate study at [[Columbia University]], she graduated with a [[master's degree]] in 1899. First she taught [[English (academic discipline)|English]] at [[Northfield Seminary]]. In 1904 she began her long service at Wellesley College, beginning as an assistant in [[mathematics]].

On leave of absence, she studied with [[Frank Morley]] at [[Johns Hopkins University]]. Her thesis was titled "Dupin's cyclide as a self-dual surface".<ref>M.M. Young (1916) [[American Journal of Mathematics]] 38(3): 269–286</ref> With her doctoral degree, Young was eventually promoted to [[professor]] and became Lewis Attenbury Stimson Professor of Mathematics at Wellesley College.

In 1933 Young contributed an article to [[American Mathematical Monthly]] on a configuration of [[triangle]]s associated with a [[parabola]] &pi;.<ref>M. M. Young (1933) "Curves arising from a single infinity of triangles", [[American Mathematical Monthly]] 40(4): 196–202 </ref> Let &pi; be a parabola, ''p'' and ''q'' fixed [[tangent]]s to &pi; that intersect at T. Then a variable tangent to &pi; forms a triangle with ''p'' and ''q''. The variability of this tangent describes the "single infinity of triangles". The corresponding [[orthocenter]]s, [[circumcenter]]s, [[centroid]]s, and centers of the [[nine-point circle]] are approached using projective properties of the triangles.

Young became [[emeritus professor]] in 1941. She died March 4, 1963, at Wellesley.

==References==

* [[Boston Globe]] (March 5, 1963) "Mabel Young 89, headed math department at Wellesley College"
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[[Category:20th-century mathematicians]]
[[Category:American women mathematicians]]
[[Category:Wellesley College faculty]]


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