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<!doctype html>
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<section id="sperry" class="content-section ">
<h1>Pauline Sperry Undergraduate Lectures</h1>
<p class="text-center">
<img width="300px" src="img/Pauline_Sperry.jpg"></p>
<p class="text-center" style="max-width:600px;margin:auto;">In celebration of the anniversary of the addition of the first woman to become an associate professor
in the Berkeley Math Department and her incredible devotion to the math community at Berkeley</p>
<h3>104th Anniversary Talk: Contractibility as Uniqueness</h3>
<p class="text-center"> Professor Emily Riehl<br>
Associate Professor of Mathematics<br>
John Hopkins University</p>
<p>What does it mean for something to exist uniquely? Classically, to say that a set A has a unique element means that
there is an element x of A and any other element y of A equals x. When this assertion is applied to a space A, instead
of a mere set, and interpreted in a continuous fashion, it encodes the statement that the space A is contractible,
i.e., that A is continuously deformable to a point. This talk will explore this notion of contractibility as uniqueness
and its role in generalizing from ordinary categories to infinite-dimensional categories. </p>
<h4>Biography of Prof. Riehl</h4>
<p class="text-center">
<img width="300px" src="img/Emily-Riehl-headshot.jpeg"></p>
<!-- <p>
<b>Kristin Estella Lauter</b> is a mathematician and
<a href="https://en.wikipedia.org/wiki/Cryptographer" title="Cryptographer" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Cryptographer&source=gmail&ust=1519951168583000&usg=AFQjCNFRludqa_2csNwohbQhTE2jCXNRPA">cryptographer</a> whose research areas are
<a href="https://en.wikipedia.org/wiki/Number_theory" title="Number theory" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Number_theory&source=gmail&ust=1519951168583000&usg=AFQjCNElgkA3FienRgWXfHt2hLLs2BxMMA">number theory</a>,
<a href="https://en.wikipedia.org/wiki/Algebraic_geometry" title="Algebraic geometry" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Algebraic_geometry&source=gmail&ust=1519951168583000&usg=AFQjCNG_a_zhbrIx6n4nMw8ZOTPlahQoRA">
algebraic geometry</a>, and applications to cryptography. She is particularly known for her work on homomorphic encryption,
<a href="https://en.wikipedia.org/wiki/Elliptic_curve_cryptography" title="Elliptic curve cryptography" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Elliptic_curve_cryptography&source=gmail&ust=1519951168583000&usg=AFQjCNFH9dB_NeV7VRn_fGZz-mFlSnaiXQ">
elliptic curve cryptography</a>, and for introducing supersingular
isogeny graphs as a hard problem into cryptography. She is a Principal
Researcher and Research Manager of the Cryptography Group at
<a href="https://en.wikipedia.org/wiki/Microsoft_Research" title="Microsoft Research" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Microsoft_Research&source=gmail&ust=1519951168583000&usg=AFQjCNFZ_nQv2MNEkXvBFnbqgHc0x4mXVw">
Microsoft Research</a> in Redmond, Washington. She served as President of the <a href="https://en.wikipedia.org/wiki/Association_for_Women_in_Mathematics" title="Association for Women in Mathematics" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Association_for_Women_in_Mathematics&source=gmail&ust=1519951168583000&usg=AFQjCNG2X_I34lM_tDWSg8-p6aFBOwI_2g">
Association for Women in Mathematics</a> from 2015 –2017. She has published more than 100 papers and holds more than 50 patents.</p>
<p>
In 2008 Lauter and her coauthors were awarded the <a href="https://en.wikipedia.org/wiki/Algorithmic_Number_Theory_Symposium#Selfridge_Prize" title="Algorithmic Number Theory Symposium" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Algorithmic_Number_Theory_Symposium%23Selfridge_Prize&source=gmail&ust=1519951168583000&usg=AFQjCNGyYD--WZi0LVDLiKMjk-mRx49jbg">
Selfridge Prize</a> in Computational Number Theory. She was elected to the 2015 Class of Fellows of the
<a href="https://en.wikipedia.org/wiki/American_Mathematical_Society" title="American Mathematical Society" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/American_Mathematical_Society&source=gmail&ust=1519951168583000&usg=AFQjCNFNyAhCXh9FAin1lc5UcHUzj7Tx3w">
American Mathematical Society</a> "for contributions to arithmetic
geometry and cryptography as well as service to the community." In
2017, she was selected as a fellow of the
<a href="https://en.wikipedia.org/wiki/Association_for_Women_in_Mathematics" title="Association for Women in Mathematics" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Association_for_Women_in_Mathematics&source=gmail&ust=1519951168583000&usg=AFQjCNG2X_I34lM_tDWSg8-p6aFBOwI_2g">
Association for Women in Mathematics</a> in the inaugural class, and as the 2018-2020 Polya Lecturer for the Mathematical Association of America.</p>
<p>
Lauter received her BA, MS, and <a href="https://en.wikipedia.org/wiki/Ph.D" title="Ph.D" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Ph.D&source=gmail&ust=1519951168583000&usg=AFQjCNH-Rn-TCk6PhEurfj8BKy2lV_u_vQ">
Ph.D</a> degrees in mathematics from the <a href="https://en.wikipedia.org/wiki/University_of_Chicago" title="University of Chicago" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/University_of_Chicago&source=gmail&ust=1519951168583000&usg=AFQjCNFwBqo-4BNNPmpCHOSvroLqqkGtYw">
University of Chicago</a>, in 1990, 1991, and 1996, respectively. Prior to joining Microsoft, she held positions as a visiting scholar at
<a href="https://en.wikipedia.org/wiki/Max_Planck_Institut_fur_Mathematik" title="Max Planck Institut fur Mathematik" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Max_Planck_Institut_fur_Mathematik&source=gmail&ust=1519951168583000&usg=AFQjCNF2P920ZBYVmqlzyJvtGTSgyWT4XQ">
Max Planck Institut fur Mathematik</a> in Bonn, Germany (1997), T.H.
Hildebrandt Research Assistant Professor at the University of Michigan
(1996-1999), and a visiting researcher at Institut de Mathematiques
Luminy in France (1999).</p>
<p>
She is a co-founder of the Women in Numbers Network, a research
collaboration community for women in number theory, and she is the lead
PI for the AWM NSF Advance Grant (2015-2020) to create and sustain
research networks for women in all
areas of mathematics. She serves on the Board of Trustees of MSRI, the
Advisory Board of the
<a href="https://en.wikipedia.org/wiki/Banff_International_Research_Station" title="Banff International Research Station" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Banff_International_Research_Station&source=gmail&ust=1519951168583000&usg=AFQjCNH2Kv05VhSLwYjN5jiAj9UByvwyGw">
Banff International Research Station</a> and has served on the Council<sup><a href="https://en.wikipedia.org/wiki/Kristin_Lauter#cite_note-7" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/Kristin_Lauter%23cite_note-7&source=gmail&ust=1519951168583000&usg=AFQjCNGGdZnQrackaeEvKykTsrYGXwKOLw">[7]</a></sup> of the
<a href="https://en.wikipedia.org/wiki/American_Mathematical_Society" title="American Mathematical Society" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://en.wikipedia.org/wiki/American_Mathematical_Society&source=gmail&ust=1519951168583000&usg=AFQjCNFNyAhCXh9FAin1lc5UcHUzj7Tx3w">
American Mathematical Society</a> (2014-2017).</p> -->
<h3>Biography of Pauline Sperry</h3>
<p> The year 2017 marked the centennial of the addition of the first woman to become an associate professor in the Berkeley Math Department – Pauline Sperry. Born in 1885 in Massachusetts, she studied math and music at Smith College, where she later returned for graduate work and teaching mathematics. She continued her graduate studies at the University of Chicago, where she completed her dissertation in projective differential geometry and in 1916 was awarded a doctorate. Then in 1917, she joined UC Berkeley as an instructor, promoted to assistant professor in 1923 and eventually to associate professor in 1932, both demonstrating her brilliance in advanced mathematics as the first woman to achieve those positions in Berkeley. By 1950, she had advised five Ph.D. candidates, published a bibliography and two textbooks, and mentored many women in her decades of service to the Berkeley Math Department.
</p><p>
Sperry’s distinguished career came to a premature end in 1950 when she was dismissed for refusing to sign an oath of loyalty at the height of the anti-communist era. She believed as a matter of principle that the oath would encroach on political freedom. After 2 years, the court ruled in her and other nonsigners favor, but as she was already passed the retirement age, she was reinstated as associate professor emerita. Later, the University President Robert G. Sproul praised her “exceptional ability as a teacher in a subject in which the quality of teaching can be responsible in large measure for the difference between brilliance and mediocrity in a student's work.”
</p><p>
After retiring from teaching, Sperry dedicated her time to promote human rights through involvement in the American Civil Liberties Union, the League of Women Voters, and the Committee for a Sane Nuclear Policy. A remarkable philanthropist, she also gave to help those in need, claiming that to be happy, one should be “bold enough to ask the right questions, and brave enough to face the answers about the untouchable subject, money. ... Give 'till it hurts!”.
</p><p>
It is in honor of Professor Sperry’s decades of devotion to teaching, excellence in mathematics, social activism, and her remarkable generosity and spirit that we started this lecture series. Our hope is that her example can serve as a role model for all students of mathematics. </p>
<h4>You can find a link to our previous semester's lectures <a href="former_sperry.html">here </a> </h4>
</section>
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