Nathaniel Dean (mathematician)
{{Short description|American mathematician and educator}}
{{Infobox scientist
| boxwidth =
| name = Nathaniel Dean
| image =
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| birth_date =
| birth_place =
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| nationality = American
| fields = Applied mathematics
| workplaces = Bell Labs, Rice University, Texas Southern University, Texas State University
| alma_mater = Mississippi State University, Northeastern University, Vanderbilt University
| doctoral_advisor = Robert Louis Hemminger
| thesis_title = Contractible Edges and Conjectures about Path and Cycle Numbers (1987)
| academic_advisors =
| doctoral_students =
| notable_students =
| known_for = Graph Theory, Data Visualization, Parallel Computing
| awards = Bell Labs President's Silver Award (1997)
}}
Nathaniel Dean (January 9, 1956 – January 2021{{Cite web |title=Nathaniel Dean |url=https://mathematicallygiftedandblack.com/honorees/nathaniel-dean/ |access-date=2022-04-07 |website=Mathematically Gifted & Black |language=en-US}}) was an African-American mathematician and educator who made contributions to abstract and algorithmic graph theory, as well as data visualization and parallel computing.
Education
Dean received his B.S. in Mathematics and Physics from Mississippi State University in 1978. He then received his M.S. in Applied Mathematics from Northeastern University in 1983. He received his Ph.D. in Mathematics from Vanderbilt University in 1987, with a doctoral thesis titled "Contractible Edges and Conjectures and Path and Cycle Numbers".
Scientific career
For the next eleven years, he worked at the Software Production Research Department of Bell Labs, where he would author over thirty scientific publications on graph theory, graph algorithms, parallel computing, and data visualization. In 1995 he posed a conjecture which led to progress on the second neighborhood problem, which remains open as of 2020. His work on using graph theory for data mining was featured in the PBS series Life by the Numbers.
In 1997 Dean received the Bell Labs President's Silver Award, and shortly thereafter began a professorship at Rice University. While at Rice, he supervised four Ph.D. students with thesis topics ranging from algorithmic graph theory to biological computing. On January 11, 2001, Dean was elected vice president of the National Association of Mathematicians (NAM). In 2003 he moved from Rice University to Texas Southern University, where he attained the rank of full professor and would serve as chair of the mathematics department.
Dean's departure from Texas Southern University to Texas State University was announced in a NAM newsletter in 2006. Dean focused on mathematics education and outreach throughout his time at Texas State, most notably by serving as President of NAM from 2005 to 2015. His research activities during this time include graph theory and an influential article on data visualization. He retired from Texas State in 2016.
Outreach
Dean was actively involved in mathematics education and outreach throughout his career. In addition to his involvement in the PBS series Life by the Numbers, he developed software to teach discrete mathematics at the K-12 level. Much of Dean's outreach was through the National Association of Mathematicians (NAM), a nonprofit which aims to promote the mathematical development of underrepresented minorities; his involvement with NAM includes serving as vice president (2001-2004) and president (2005-2015).
Separate from his involvement with NAM, Dean worked with the American Mathematical Society to publish two conference proceeding on African American mathematicians. Dean also served as an associate editor of the Notices of the AMS from 2001 to 2006.https://www.ams.org/about-us/governance/committees/notices-past.html
Dean was quite involved with other professional societies in mathematics as well. He served on the board of governors of the Mathematical Association of America from 2005 to 2007, and served as chair of MSRI's Human Resources Advisory Committee (HRAC) from 2005 to 2007. In 2010, he gave the Pi Mu Epsilon J. Sutherland Frame Lecture on "Incomprehensibility".
Dean's fifth and final Ph.D. student graduated from Texas State University in 2010, with a thesis on secondary school mathematics pedagogy.
References
{{reflist| refs=
| last1 = Dean | first1 = Nathaniel
| last2 = Latka | first2 = Brenda J.
| department = Proceedings of the Twenty-Sixth Southeastern International Conference on Combinatorics, Graph Theory and Computing (Boca Raton, FL, 1995)
| journal = Congressus Numerantium
| mr = 1369296
| pages = 73–80
| title = Squaring the tournament—an open problem
| volume = 109
| year = 1995}}
| last = Fisher | first = David C.
| doi = 10.1002/(SICI)1097-0118(199609)23:1<43::AID-JGT4>3.0.CO;2-K
| issue = 1
| journal = Journal of Graph Theory
| mr = 1402137
| pages = 43–48
| title = Squaring a tournament: a proof of Dean's conjecture
| volume = 23
{{cite episode
| title = Life by the Numbers - Information Age - A New Age
| url = https://www.maa.org/review-life-by-the-numbers
| series = Life by the Numbers
| credits = WQED Pittsburgh
| network = The Public Broadcasting Service
| air-date = 1998
| season = 1
| number = 6
| minutes = 57
| transcript = YouTube video
| transcript-url = https://youtube.com/8LanF2f1m_w?list=PLrRCTtrgf0XMSwY_mRYKmtGqYVSJOg6qg }}
{{cite web
| url = https://www.msri.org/people/9409
| title = Personal Profile of Dr. Nathaniel Dean
| author=
| date = n.d.
| website = Mathematical Sciences Research Institute
| access-date = June 10, 2020
| quote ="In 1997 he received the President’s Silver Award from Bell Laboratories." }}
{{cite magazine
| last = Williams
| first = Dr. Scott
| date = Spring 2001
| title = Volume 32, Issue 1
| url = https://www.nam-math.org/archives.html
| magazine = N.A.M. Newsletter
| location = The State University of New York, Buffalo
| publisher = National Association of Mathematicians
| access-date= June 10, 2020
{{cite magazine
| last = Williams
| first = Dr. Scott
| date = Spring 2003
| title = Volume 34, Issue 1
| url = https://www.nam-math.org/archives.html
| magazine = N.A.M. Newsletter
| location = The State University of New York, Buffalo
| publisher = National Association of Mathematicians
| access-date= June 10, 2020
{{cite magazine
| last = Williams
| first = Dr. Scott
| date = Fall 2005
| title = Volume 36, Issue 3
| url = https://www.nam-math.org/archives.html
| magazine = N.A.M. Newsletter
| location = The State University of New York, Buffalo
| publisher = National Association of Mathematicians
| access-date= June 10, 2020
{{cite magazine
| last = Williams
| first = Dr. Scott
| date = Fall 2006
| title = Volume 37, Issue 1
| url = https://www.nam-math.org/archives.html
| magazine = N.A.M. Newsletter
| location = The State University of New York, Buffalo
| publisher = National Association of Mathematicians
| access-date= June 10, 2020
{{cite magazine
| last = Washington
| first = Dr. Talitha
| date = Spring 2015
| title = Volume 46, Issue 1
| url = https://www.nam-math.org/archives.html
| magazine = N.A.M. Newsletter
| location = Howard University
| publisher = National Association of Mathematicians
| access-date= June 10, 2020
}}
{{cite journal|last1=Buja|first1=Andreas|last2=Swayne|first2=Deborah F|last3=Littman|first3=Michael L|last4=Dean|first4=Nathaniel|last5=Hofmann|first5=Heike|last6=Chen|first6=Lisha|title=Data Visualization With Multidimensional Scaling|journal=Journal of Computational and Graphical Statistics|volume=17|issue=2|year=2008|pages=444–472|issn=1061-8600|doi=10.1198/106186008X318440|s2cid=10675294}}
{{cite web
| url = https://www.math.txstate.edu/about/people/past-faculty.html
| title = Past Faculty : Mathematics : Texas State University
| author=
| date = n.d.
| website = Mathematics : Texas State University
| publisher = Department of Mathematics at Texas State University
| access-date = June 10, 2020
| quote ="Retired Faculty. ... Nathaniel Dean: Ph.D., Vanderbilt University (1987), 2006 - 2016." }}
{{cite book
| last1 = Rosenstein
| first1 = Joseph
| last2 = Franzblau
| first2 = Deborah
| last3 = Roberts
| first3 = Fred
| author3-link = Fred Roberts
| title = Discrete Mathematics in the Schools
| publisher = DIMACS
| series = Discrete Mathematics and Theoretical Computer Science
| volume = 36
| edition = 1
| date = 1997
| location = New Jersey
| pages = Section 7
| language = English
| url = http://archive.dimacs.rutgers.edu/Volumes/schools/overview.html
| isbn = 978-0-8218-0448-3}}
}}
{{authority control}}
{{DEFAULTSORT:Dean, Nathaniel}}
Category:African-American mathematicians
Category:Vanderbilt University alumni
Category:Scientists at Bell Labs
Category:Rice University faculty