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[[File:Robert Plemmons.jpg|thumb|Robert Plemmons in 2007]] |
[[File:Robert Plemmons.jpg|thumb|Robert Plemmons in 2007]] |
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'''Robert James Plemmons''' (born December 18, 1938) is an American mathematician specializing in [[computational mathematics]].<ref name=":0">{{Cite journal|last=Nagy|first=James|last2=Ng|first2=Michael|date=2015-07-02|title=Dedication to Robert J. Plemmons |
'''Robert James Plemmons''' (born December 18, 1938) is an American mathematician specializing in [[computational mathematics]].<ref name=":0">{{Cite journal|last=Nagy|first=James|last2=Ng|first2=Michael|date=2015-07-02|title=Dedication to Robert J. Plemmons|journal=Numerical Linear Algebra with Applications|volume=22|issue=5|pages=793–794|doi=10.1002/nla.2002|issn=1070-5325}}</ref> He is the Emeritus Z. Smith Reynolds Professor of Mathematics and Computer Science at [[Wake Forest University]].<ref>{{Cite web|url=http://college.wfu.edu/cs/people/cs-faculty|title=Faculty – Department of Computer Science|website=college.wfu.edu|access-date=2018-08-09}}</ref> In 1979, Plemmons co-authored the book ''Nonnegative Matrices in the Mathematical Sciences''.<ref name=":1">{{Cite book|url=https://www.elsevier.com/books/nonnegative-matrices-in-the-mathematical-sciences/berman/978-0-12-092250-5|title=Nonnegative Matrices in the Mathematical Sciences, 1st Edition|last=Berman|first=Abraham|last2=Plemmons|first2=Robert J.|publisher=Academic Press|year=1979|isbn=9781483260860|location=|pages=}}</ref> |
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== Education and life == |
== Education and life == |
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He attended [[Wake Forest University]] (WFU) on a full baseball scholarship.<ref name=":3">{{Cite web|url=http://www4.ncsu.edu/~njrose/Special/DeptHistory/1980-1989.html|title=Math Dept History: 1980-1989|website=www4.ncsu.edu|access-date=2018-08-09}}</ref> Former athletic director [[Gene Hooks]] was his baseball coach.<ref>{{Cite news|url=https://gastoniagazette.newspaperarchive.com/gastonia-gazette/1959-04-09/page-11/|title=Gene Says Deacs Set for Grind|last=|first=|date=April 9, 1959|work=The Gastonia Gazette|access-date=|page=11}}</ref> In 1959, he held the record for [[earned run average]].<ref name=":4">{{Cite news|url=http://grfx.cstv.com/photos/schools/wake/sports/m-basebl/auto_pdf/bb44to55.pdf|title=Wake Forest Baseball, 2002 Media Guide|last=|first=|date=2002|work=|access-date=}}</ref> During the years 1959-61, he held the record for victories, [[innings]] pitched, [[strikeout]]s, and complete games, and made All-Conference Pitcher all three years.<ref name=":4" /> In the academic year 1960-61, he was awarded the WFU ACC Scholar-Athlete of the Year.<ref>{{Cite web|url=http://www.wakeforestsports.com/sass/acc-scholar-athlete.html|title=Wake Forest SASS - WakeForestSports.com - The Official Site of Demon Deacon Athletics|website=www.wakeforestsports.com|access-date=2018-08-09}}</ref><ref name=":5">{{Cite web|url=https://library.digitalnc.org/cdm/singleitem/collection/yearbooks/id/1811/rec/59|title=The Howler [1961] :: North Carolina College and University Yearbooks|website=library.digitalnc.org|access-date=2018-08-09}}</ref> Plemmons graduated from Wake Forest in 1961 with a [[Bachelor of Science]] Degree in Mathematics.<ref name=":0" /> |
He attended [[Wake Forest University]] (WFU) on a full baseball scholarship.<ref name=":3">{{Cite web|url=http://www4.ncsu.edu/~njrose/Special/DeptHistory/1980-1989.html|title=Math Dept History: 1980-1989|website=www4.ncsu.edu|access-date=2018-08-09}}</ref> Former athletic director [[Gene Hooks]] was his baseball coach.<ref>{{Cite news|url=https://gastoniagazette.newspaperarchive.com/gastonia-gazette/1959-04-09/page-11/|title=Gene Says Deacs Set for Grind|last=|first=|date=April 9, 1959|work=The Gastonia Gazette|access-date=|page=11}}</ref> In 1959, he held the record for [[earned run average]].<ref name=":4">{{Cite news|url=http://grfx.cstv.com/photos/schools/wake/sports/m-basebl/auto_pdf/bb44to55.pdf|title=Wake Forest Baseball, 2002 Media Guide|last=|first=|date=2002|work=|access-date=}}</ref> During the years 1959-61, he held the record for victories, [[innings]] pitched, [[strikeout]]s, and complete games, and made All-Conference Pitcher all three years.<ref name=":4" /> In the academic year 1960-61, he was awarded the WFU ACC Scholar-Athlete of the Year.<ref>{{Cite web|url=http://www.wakeforestsports.com/sass/acc-scholar-athlete.html|title=Wake Forest SASS - WakeForestSports.com - The Official Site of Demon Deacon Athletics|website=www.wakeforestsports.com|access-date=2018-08-09}}</ref><ref name=":5">{{Cite web|url=https://library.digitalnc.org/cdm/singleitem/collection/yearbooks/id/1811/rec/59|title=The Howler [1961] :: North Carolina College and University Yearbooks|website=library.digitalnc.org|access-date=2018-08-09}}</ref> Plemmons graduated from Wake Forest in 1961 with a [[Bachelor of Science]] Degree in Mathematics.<ref name=":0" /> |
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During the early 1960s, Plemmons played professional baseball for four years with the [[Baltimore Orioles]]' minor league clubs.<ref>{{Cite news|url=|title=Orioles Sign Old Fort's Bob Plemmons|last=Terrell|first=Bob|date=June 4, 1961|work=Asheville Citizen - Times (Sports)|access-date=}}</ref><ref name=":6">{{Cite book|url=https://books.google.com/ |
During the early 1960s, Plemmons played professional baseball for four years with the [[Baltimore Orioles]]' minor league clubs.<ref>{{Cite news|url=|title=Orioles Sign Old Fort's Bob Plemmons|last=Terrell|first=Bob|date=June 4, 1961|work=Asheville Citizen - Times (Sports)|access-date=}}</ref><ref name=":6">{{Cite book|url=https://books.google.com/?id=z0hkCwAAQBAJ&lpg=PT163&dq=robert%20plemmons%20baseball&pg=PT163#v=onepage&q=robert%20plemmons%20baseball&f=false|title=Tales from the Wake Forest Demon Deacons Locker Room: A Collection of the Greatest Demon Deacon Stories Ever Told|last=Collins|first=Dan|date=2016-01-19|publisher=Skyhorse Publishing, Inc.|isbn=9781613218518}}</ref> He played with the [[Tri-City Atoms]], [[Aberdeen Pheasants]], and [[Elmira Pioneers]].<ref>{{Cite web|url=https://www.baseball-reference.com/register/player.fcgi?id=plemmo001rob|title=Robert Plemmons Minor Leagues Statistics & History {{!}} Baseball-Reference.com|website=Baseball-Reference.com|access-date=2018-08-09}}</ref> |
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In December 1963, he married Mary Jo Harris, also from Old Fort and a graduate of Old Fort High School.<ref name=":1" /><ref name=":2" /> |
In December 1963, he married Mary Jo Harris, also from Old Fort and a graduate of Old Fort High School.<ref name=":1" /><ref name=":2" /> |
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Plemmons attended graduate school at [[Auburn University]] from 1961–65, receiving his [[Doctor of Philosophy|PhD]] in [[Applied mathematics|Applied Mathematics]] in 1965.<ref name=":0" /> He then held research positions with [[Martin Marietta|Martin-Marietta]] in [[Orlando, Florida]], and the [[National Security Agency]] in [[Fort George G. Meade|Ft. Meade]].<ref name=":0" /> He served as a faculty member at the [[University of Mississippi]] from 1966–67,<ref name=":6" /> before moving to the [[University of Tennessee|University of Tennessee Knoxville]] in 1967.<ref name=":0" /><ref name=":6" /> In 1981, Plemmons moved to [[Raleigh, North Carolina]], where he taught at [[North Carolina State University]] until 1990.<ref name=":0" /><ref name=":6" /> While there, he founded the University of North Carolina System’s Center for Research in Scientific Computation.<ref>{{Cite web|url=http://www4.ncsu.edu/~njrose/Special/Tidbits/CRSC.html|title=Center for Research in Scientific Computation|website=www4.ncsu.edu|access-date=2018-08-09}}</ref> Plemmons joined the faculty of [[Wake Forest University]] in 1990.<ref name=":0" /> In 2013, he retired from teaching,<ref name=":7">{{Cite news|url=http://research.wfu.edu/files/2014/02/2013-Annual-Report.pdf|title=2013 Annual Report|last=|first=|date=2013|work=Office of Research and Sponsored Programs, Wake Forest University|access-date=}}</ref> but still conducts research at WFU.<ref>{{cite arxiv|last=Chan|first=Raymond H.|last2=Kan|first2=Kelvin K.|last3=Nikolova|first3=Mila|last4=Plemmons|first4=Robert J.|date=2018-06-03|title=A two-stage method for spectral-spatial classification of hyperspectral images| |
Plemmons attended graduate school at [[Auburn University]] from 1961–65, receiving his [[Doctor of Philosophy|PhD]] in [[Applied mathematics|Applied Mathematics]] in 1965.<ref name=":0" /> He then held research positions with [[Martin Marietta|Martin-Marietta]] in [[Orlando, Florida]], and the [[National Security Agency]] in [[Fort George G. Meade|Ft. Meade]].<ref name=":0" /> He served as a faculty member at the [[University of Mississippi]] from 1966–67,<ref name=":6" /> before moving to the [[University of Tennessee|University of Tennessee Knoxville]] in 1967.<ref name=":0" /><ref name=":6" /> In 1981, Plemmons moved to [[Raleigh, North Carolina]], where he taught at [[North Carolina State University]] until 1990.<ref name=":0" /><ref name=":6" /> While there, he founded the University of North Carolina System’s Center for Research in Scientific Computation.<ref>{{Cite web|url=http://www4.ncsu.edu/~njrose/Special/Tidbits/CRSC.html|title=Center for Research in Scientific Computation|website=www4.ncsu.edu|access-date=2018-08-09}}</ref> Plemmons joined the faculty of [[Wake Forest University]] in 1990.<ref name=":0" /> In 2013, he retired from teaching,<ref name=":7">{{Cite news|url=http://research.wfu.edu/files/2014/02/2013-Annual-Report.pdf|title=2013 Annual Report|last=|first=|date=2013|work=Office of Research and Sponsored Programs, Wake Forest University|access-date=}}</ref> but still conducts research at WFU.<ref>{{cite arxiv|last=Chan|first=Raymond H.|last2=Kan|first2=Kelvin K.|last3=Nikolova|first3=Mila|last4=Plemmons|first4=Robert J.|date=2018-06-03|title=A two-stage method for spectral-spatial classification of hyperspectral images|eprint=1806.00836|class=eess.IV}}</ref><ref>{{Cite web|url=http://college.wfu.edu/cs/graduate-program/prospective-students/185-2|title=Reasons To Join Us – Department of Computer Science|website=college.wfu.edu|access-date=2018-08-09}}</ref> He was also the professor and mentor of former NBA and WFU basketball player [[Rusty LaRue]].<ref name=":6" /><ref>{{Cite journal|last=|first=|date=December 1995|title=Triple Threat|url=https://wakespace.lib.wfu.edu/handle/10339/58207|journal=Wake Forest University Magazine|volume=|pages=32|via=Wake Forest University}}</ref> |
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== Academic work == |
== Academic work == |
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Plemmons has focused his work on applied [[computational mathematics]].<ref name=":0" /> At [[Auburn University|Auburn]] in the early 1960s, Plemmons’ work with Ph.D. advisors Richard Ball and Emily Haynesworth<ref name=":0" /> was focused on [[Finite Semigroup (mathematics)|finite semigroups]] theory.<ref>{{Cite journal|last=Plemmons|first=R.J.|last2=Tamura|first2=T.|date=1965|title=Semigroups with a maximal homomorphic image having zero|url=|journal=Proc. Japan Acad.|volume=41|pages=681–685|via=}}</ref><ref>{{Cite journal|last=Plemmons|first=R. J.|date=1967|title=On computing non-equivalent finite algebraic systems|url=|journal=Math. Algebra|volume=2|pages=80–84|via=}}</ref> He continued this research until the early 1980s at the [[University of Tennessee|University of Tennessee Knoxville]].<ref>{{Cite journal|last=Harrod|first=W.|last2=Plemmons|first2=R. J.|date=1984|title=Comparison of some direct methods for computing stationary distributions of Markov chains|url=|journal=SIAM J. Sci. Statist. Comput.|volume=5|pages=453–469|via=}}</ref><ref>{{Cite journal|last=Plemmons|first=R. J.|date=1973|title=Regular nonnegative matrices|url=|journal=Proc. Amer. Math. Soc.|volume=39|pages=26–32|via=}}</ref> In 1979, he co-authored the book Nonnegative Matrices in the Mathematical Sciences along with Abraham Berman.<ref name=":1" /> The book has been cited over 7,500 times.<ref name=":8">{{Cite web|url=https://scholar.google.com/scholar?hl=en&as_sdt=0,34&q=non+negative+matrices+in+the+mathematical+sciences&btnG=|title=Google Scholar|website=scholar.google.com|access-date=2018-08-09}}</ref> In 1994, it was revised and republished by the [[Society for Industrial and Applied Mathematics]] (SIAM).<ref>{{Cite book |
Plemmons has focused his work on applied [[computational mathematics]].<ref name=":0" /> At [[Auburn University|Auburn]] in the early 1960s, Plemmons’ work with Ph.D. advisors Richard Ball and Emily Haynesworth<ref name=":0" /> was focused on [[Finite Semigroup (mathematics)|finite semigroups]] theory.<ref>{{Cite journal|last=Plemmons|first=R.J.|last2=Tamura|first2=T.|date=1965|title=Semigroups with a maximal homomorphic image having zero|url=|journal=Proc. Japan Acad.|volume=41|pages=681–685|via=}}</ref><ref>{{Cite journal|last=Plemmons|first=R. J.|date=1967|title=On computing non-equivalent finite algebraic systems|url=|journal=Math. Algebra|volume=2|pages=80–84|via=}}</ref> He continued this research until the early 1980s at the [[University of Tennessee|University of Tennessee Knoxville]].<ref>{{Cite journal|last=Harrod|first=W.|last2=Plemmons|first2=R. J.|date=1984|title=Comparison of some direct methods for computing stationary distributions of Markov chains|url=|journal=SIAM J. Sci. Statist. Comput.|volume=5|pages=453–469|via=}}</ref><ref>{{Cite journal|last=Plemmons|first=R. J.|date=1973|title=Regular nonnegative matrices|url=|journal=Proc. Amer. Math. Soc.|volume=39|pages=26–32|via=}}</ref> In 1979, he co-authored the book Nonnegative Matrices in the Mathematical Sciences along with Abraham Berman.<ref name=":1" /> The book has been cited over 7,500 times.<ref name=":8">{{Cite web|url=https://scholar.google.com/scholar?hl=en&as_sdt=0,34&q=non+negative+matrices+in+the+mathematical+sciences&btnG=|title=Google Scholar|website=scholar.google.com|access-date=2018-08-09}}</ref> In 1994, it was revised and republished by the [[Society for Industrial and Applied Mathematics]] (SIAM).<ref>{{Cite book|title=Nonnegative Matrices in the Mathematical Sciences|last=Berman|first=Abraham|last2=Plemmons|first2=Robert J.|date=|publisher=Society for Industrial and Applied Mathematics|year=1994|isbn=9780898713213|location=|pages=|doi=10.1137/1.9781611971262}}</ref> |
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In the mid-to-late 1980s until mid 1990s, his research focused on numerical linear algebra,<ref>{{Cite book|title=The Birth of Numerical Analysis, Volume 10|last=Bultheel|first=A.|last2=Cools|first2=R.|last3=Chen|first3=D.|last4=Plemmons|first4=P.|publisher=World Scientific|year=2010|isbn= |
In the mid-to-late 1980s until mid 1990s, his research focused on numerical linear algebra,<ref>{{Cite book|title=The Birth of Numerical Analysis, Volume 10|last=Bultheel|first=A.|last2=Cools|first2=R.|last3=Chen|first3=D.|last4=Plemmons|first4=P.|publisher=World Scientific|year=2010|isbn=978-9812836250|location=|pages=109–140|chapter=Nonnegativity constraints in numerical analysis}}</ref><ref>{{Cite journal|last=Henkel|first=C.S.|last2=Plemmons|first2=R.J.|date=1991|title=Parallel recursive least squares on a hypercube multiprocessor, in: Numerical Linear Algebra, Digital Signal Processing and Parallel Algorithms|url=|journal=NATO ASI Series|volume=Ser. F 70|pages=571–577|via=}}</ref><ref>{{Cite journal|last=Berry|first=M.W.|last2=Plemmons|first2=R.J.|date=1985|title=Computing a banded basis of the null space on the Denelcor HEP multiprocessor, in: Proceedings of the AMS/SIAM Conference on the Role of Linear Algebra in Systems Theory, Bowdoin, ME, USA|url=|journal=Contemporary Mathematics|volume=47|pages=7–23|via=}}</ref> specifically in [[Matrix theory (physics)|Matrix Theory]] with applications in [[Markov chain|Markov]] chains and nonnegative matrices.<ref>{{Cite journal|last=Kontovasilis|first=K.|last2=Plemmons|first2=R.J.|last3=Stewart|first3=W.J.|date=1991|title=Block cyclic SOR for Markov chains with p-cyclic infinitesimal generator|url=|journal=Linear Algebra Appl.|volume=154-156|pages=145–223|via=}}</ref><ref>{{Cite journal|last=Barker|first=G.|last2=Plemmons|first2=R.J.|date=1986|title=Convergent iterations for computing stationary distributions of Markov chains|url=|journal=SIAM J. Algebraic Discrete Methods|volume=7|pages=390–398|via=}}</ref> Plemmons has been recognized internationally for his significant contributions to the field, celebrated at the Linear Algebra: Theory, Applications, and Computations Conference held at [[Wake Forest University]] in 1999 in honor of Plemmons’ 60th birthday,<ref name=":0" /> and the International Workshop on Numerical Linear Algebra with Applications held in [[Hong Kong]] in 2013 in honor of his 75th birthday.<ref>{{Cite web|url=https://www.math.cuhk.edu.hk/conference/nlaa2013/|title=CUHK :: Math :: International Workshop on Numerical Linear Algebra with Applications (November 17-18, 2013)|website=www.math.cuhk.edu.hk|access-date=2018-08-18}}</ref> |
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Plemmons has been conducting research in imaging physics and applied optics at [[Wake Forest University|Wake Forest]] since the late 1990s.<ref name=":0" /><ref name=":9">{{Cite journal|last=Stock-Windsor|first=Christina|date=|title=A Clear View of Forever|url=https://wakespace.lib.wfu.edu/handle/10339/58216|journal=Wake Forest Magazine|volume=March 1997|pages=19–23|via=}}</ref> He focused initially in [[biometrics]], including [[iris recognition]].<ref>{{Cite book|title=Handbook of Iris Recognition|last=Jillela|first=R.|last2=Ross|first2=A.|last3=Boddeti|first3=N.|last4=Vijaya Kumar|first4=B.|last5=Hu|first5=X.|last6=Plemmons|first6=R.J.|last7=Pauca|first7=P.|publisher=Springer|year=2016|isbn= |
Plemmons has been conducting research in imaging physics and applied optics at [[Wake Forest University|Wake Forest]] since the late 1990s.<ref name=":0" /><ref name=":9">{{Cite journal|last=Stock-Windsor|first=Christina|date=|title=A Clear View of Forever|url=https://wakespace.lib.wfu.edu/handle/10339/58216|journal=Wake Forest Magazine|volume=March 1997|pages=19–23|via=}}</ref> He focused initially in [[biometrics]], including [[iris recognition]].<ref>{{Cite book|title=Handbook of Iris Recognition|last=Jillela|first=R.|last2=Ross|first2=A.|last3=Boddeti|first3=N.|last4=Vijaya Kumar|first4=B.|last5=Hu|first5=X.|last6=Plemmons|first6=R.J.|last7=Pauca|first7=P.|publisher=Springer|year=2016|isbn=978-1447167846|editor-last=Bowyer|editor-first=K|location=|pages=281–308|chapter=Chapter 13: Iris Segmentation for Challenging Periocular Images|editor-last2=Burge|editor-first2=M.}}</ref><ref>{{Cite journal|last=Gracht|first=Joseph van der|last2=Pauca|first2=V. Paul|last3=Setty|first3=Harsha|last4=Narayanswamy|first4=Ramkumar|last5=Plemmons|first5=Robert|last6=Prasad|first6=Sudhakar|last7=Torgersen|first7=Todd|date=2004-07-15|title=Iris recognition with enhanced depth-of-field image acquistion|url=https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5438/0000/Iris-recognition-with-enhanced-depth-of-field-image-acquistion/10.1117/12.542151.short?SSO=1|volume=5438|doi=10.1117/12.542151.short|doi-broken-date=2018-08-29}}</ref><ref>{{Cite journal|last=Hu|first=X.|last2=Pauca|first2=P.|last3=Plemmons|first3=R.J.|date=2011|title=Iterative Directional Ray-based Iris Segmentation for Challenging Periocular Images|url=|journal=Biometric Recognition|volume=LNCS7098|pages=|via=}}</ref> His current research is in space situational awareness, tracking [[space debris]] using optical methods to prevent damage to space assets.<ref name=":9" /> |
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Over the years, he has received funding from the [[National Science Foundation]], the [[National Security Agency]], the [[Central Intelligence Agency]], the [[NATO|North Atlantic Treaty Organization]], the [[Air Force Office of Scientific Research]], the [[Army Research Office]], the [[United States Department of Energy|Department of Energy]], the [[Intelligence Advanced Research Projects Activity]], and the [[National Geospatial-Intelligence Agency]].<ref name=":7" /> His research has been continuously funded by the [[United States Department of Defense|Department of Defense]] since 1973.<ref name=":10">{{Cite news|url=|title=What Does the Government Get For Its Investment in Basic Research?|last=|first=|date=1996|work=SIAM News|access-date=}}</ref> |
Over the years, he has received funding from the [[National Science Foundation]], the [[National Security Agency]], the [[Central Intelligence Agency]], the [[NATO|North Atlantic Treaty Organization]], the [[Air Force Office of Scientific Research]], the [[Army Research Office]], the [[United States Department of Energy|Department of Energy]], the [[Intelligence Advanced Research Projects Activity]], and the [[National Geospatial-Intelligence Agency]].<ref name=":7" /> His research has been continuously funded by the [[United States Department of Defense|Department of Defense]] since 1973.<ref name=":10">{{Cite news|url=|title=What Does the Government Get For Its Investment in Basic Research?|last=|first=|date=1996|work=SIAM News|access-date=}}</ref> |
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== Books == |
== Books == |
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* ''Nonnegative Matrices in the Mathematical Sciences'' (1979), Academic Press, {{ISBN|1483260860}}<ref name=":1" /> |
* ''Nonnegative Matrices in the Mathematical Sciences'' (1979), Academic Press, {{ISBN|1483260860}}<ref name=":1" /> |
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* ''Large scale matrix problems'' (1981), together with Åke Björck and Hans Schneider, North Holland, {{ISBN|0444005633}}<ref>{{Cite book|url=https://books.google.com/ |
* ''Large scale matrix problems'' (1981), together with Åke Björck and Hans Schneider, North Holland, {{ISBN|0444005633}}<ref>{{Cite book|url=https://books.google.com/?id=TOFQAAAAMAAJ&q=robert+j+plemmons&dq=robert+j+plemmons|title=Large scale matrix problems|last=Björck|first=Åke|last2=Plemmons|first2=Robert J.|last3=Schneider|first3=Hans|date=1981|publisher=North Holland|isbn=9780444005632}}</ref> |
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* ''Scientific Computing: Proceedings of the Workshop, 10–12 March 1997, Hong Kong'' (1997), edited with Gene H. Golub, Lui Shui-Hong, and T. Luk Franklin, Springer Science and Business Media, {{ISBN|9813083603}}<ref>{{Cite book|url=https://books.google.com/ |
* ''Scientific Computing: Proceedings of the Workshop, 10–12 March 1997, Hong Kong'' (1997), edited with Gene H. Golub, Lui Shui-Hong, and T. Luk Franklin, Springer Science and Business Media, {{ISBN|9813083603}}<ref>{{Cite book|url=https://books.google.com/?id=hzPtYrguXOsC&dq=robert+j+plemmons|title=Scientific Computing: Proceedings of the Workshop, 10 - 12 March 1997, Hong Kong|last=Golub|first=Gene H.|last2=Shui-Hong|first2=Lui|last3=Franklin|first3=T. Luk|last4=Plemmons|first4=Robert J.|date=1998-06-01|publisher=Springer Science & Business Media|isbn=9789813083608}}</ref> |
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* ''Linear Algebra, Markov Chains, and Queueing Models'' (2012), edited with Carl D. Meyer, Springer Science and Business Media, {{ISBN|146138351X}}<ref>{{Cite book|url=https://books.google.com/ |
* ''Linear Algebra, Markov Chains, and Queueing Models'' (2012), edited with Carl D. Meyer, Springer Science and Business Media, {{ISBN|146138351X}}<ref>{{Cite book|url=https://books.google.com/?id=hP3SBwAAQBAJ&pg=PR4&dq=robert+j+plemmons#v=onepage&q=robert%20j%20plemmons&f=false|title=Linear Algebra, Markov Chains, and Queueing Models|last=Meyer|first=Carl D.|last2=Plemmons|first2=Robert J.|date=2012-12-06|publisher=Springer Science & Business Media|isbn=9781461383512}}</ref> |
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== References == |
== References == |
Revision as of 23:07, 29 August 2018
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Robert_Plemmons.jpg/220px-Robert_Plemmons.jpg)
Robert James Plemmons (born December 18, 1938) is an American mathematician specializing in computational mathematics.[1] He is the Emeritus Z. Smith Reynolds Professor of Mathematics and Computer Science at Wake Forest University.[2] In 1979, Plemmons co-authored the book Nonnegative Matrices in the Mathematical Sciences.[3]
Education and life
Plemmons was born in 1938 in the small town of Old Fort, North Carolina, and grew up in rural Appalachia.[1] He attended Old Fort High School and graduated in 1957, having been the star athlete in both baseball and football.[4]
He attended Wake Forest University (WFU) on a full baseball scholarship.[5] Former athletic director Gene Hooks was his baseball coach.[6] In 1959, he held the record for earned run average.[7] During the years 1959-61, he held the record for victories, innings pitched, strikeouts, and complete games, and made All-Conference Pitcher all three years.[7] In the academic year 1960-61, he was awarded the WFU ACC Scholar-Athlete of the Year.[8][9] Plemmons graduated from Wake Forest in 1961 with a Bachelor of Science Degree in Mathematics.[1]
During the early 1960s, Plemmons played professional baseball for four years with the Baltimore Orioles' minor league clubs.[10][11] He played with the Tri-City Atoms, Aberdeen Pheasants, and Elmira Pioneers.[12]
In December 1963, he married Mary Jo Harris, also from Old Fort and a graduate of Old Fort High School.[3][4]
Plemmons attended graduate school at Auburn University from 1961–65, receiving his PhD in Applied Mathematics in 1965.[1] He then held research positions with Martin-Marietta in Orlando, Florida, and the National Security Agency in Ft. Meade.[1] He served as a faculty member at the University of Mississippi from 1966–67,[11] before moving to the University of Tennessee Knoxville in 1967.[1][11] In 1981, Plemmons moved to Raleigh, North Carolina, where he taught at North Carolina State University until 1990.[1][11] While there, he founded the University of North Carolina System’s Center for Research in Scientific Computation.[13] Plemmons joined the faculty of Wake Forest University in 1990.[1] In 2013, he retired from teaching,[14] but still conducts research at WFU.[15][16] He was also the professor and mentor of former NBA and WFU basketball player Rusty LaRue.[11][17]
Academic work
Plemmons has focused his work on applied computational mathematics.[1] At Auburn in the early 1960s, Plemmons’ work with Ph.D. advisors Richard Ball and Emily Haynesworth[1] was focused on finite semigroups theory.[18][19] He continued this research until the early 1980s at the University of Tennessee Knoxville.[20][21] In 1979, he co-authored the book Nonnegative Matrices in the Mathematical Sciences along with Abraham Berman.[3] The book has been cited over 7,500 times.[22] In 1994, it was revised and republished by the Society for Industrial and Applied Mathematics (SIAM).[23]
In the mid-to-late 1980s until mid 1990s, his research focused on numerical linear algebra,[24][25][26] specifically in Matrix Theory with applications in Markov chains and nonnegative matrices.[27][28] Plemmons has been recognized internationally for his significant contributions to the field, celebrated at the Linear Algebra: Theory, Applications, and Computations Conference held at Wake Forest University in 1999 in honor of Plemmons’ 60th birthday,[1] and the International Workshop on Numerical Linear Algebra with Applications held in Hong Kong in 2013 in honor of his 75th birthday.[29]
Plemmons has been conducting research in imaging physics and applied optics at Wake Forest since the late 1990s.[1][30] He focused initially in biometrics, including iris recognition.[31][32][33] His current research is in space situational awareness, tracking space debris using optical methods to prevent damage to space assets.[30]
Over the years, he has received funding from the National Science Foundation, the National Security Agency, the Central Intelligence Agency, the North Atlantic Treaty Organization, the Air Force Office of Scientific Research, the Army Research Office, the Department of Energy, the Intelligence Advanced Research Projects Activity, and the National Geospatial-Intelligence Agency.[14] His research has been continuously funded by the Department of Defense since 1973.[34]
In 1996, Plemmons delivered a congressional testimony to the U.S. House of Representatives Committee on National Security,[34][35] in support of appropriations to the Department of Defense on behalf of the Joint Policy Board for Mathematics, including the American Mathematical Society and SIAM.[35]
The mathematics lineage of Plemmons can be traced back to the German mathematicians in the 17th century.[36] Among his current peers, he is a Fellow of the Society for Industrial and Applied Mathematics.[37]
He is the author of more than 250 publications on computational mathematics,[22] and has served on the editorial board of six journals.[5]
Books
- Nonnegative Matrices in the Mathematical Sciences (1979), Academic Press, ISBN 1483260860[3]
- Large scale matrix problems (1981), together with Åke Björck and Hans Schneider, North Holland, ISBN 0444005633[38]
- Scientific Computing: Proceedings of the Workshop, 10–12 March 1997, Hong Kong (1997), edited with Gene H. Golub, Lui Shui-Hong, and T. Luk Franklin, Springer Science and Business Media, ISBN 9813083603[39]
- Linear Algebra, Markov Chains, and Queueing Models (2012), edited with Carl D. Meyer, Springer Science and Business Media, ISBN 146138351X[40]
References
- ^ a b c d e f g h i j k l Nagy, James; Ng, Michael (2015-07-02). "Dedication to Robert J. Plemmons". Numerical Linear Algebra with Applications. 22 (5): 793–794. doi:10.1002/nla.2002. ISSN 1070-5325.
- ^ "Faculty – Department of Computer Science". college.wfu.edu. Retrieved 2018-08-09.
- ^ a b c d Berman, Abraham; Plemmons, Robert J. (1979). Nonnegative Matrices in the Mathematical Sciences, 1st Edition. Academic Press. ISBN 9781483260860.
- ^ a b Old Fort High School (Old Fort, N. C. ) (1957). The Arrowhead [1957]. McDowell County Public Library.
- ^ a b "Math Dept History: 1980-1989". www4.ncsu.edu. Retrieved 2018-08-09.
- ^ "Gene Says Deacs Set for Grind". The Gastonia Gazette. April 9, 1959. p. 11.
- ^ a b "Wake Forest Baseball, 2002 Media Guide" (PDF). 2002.
- ^ "Wake Forest SASS - WakeForestSports.com - The Official Site of Demon Deacon Athletics". www.wakeforestsports.com. Retrieved 2018-08-09.
- ^ "The Howler [1961] :: North Carolina College and University Yearbooks". library.digitalnc.org. Retrieved 2018-08-09.
- ^ Terrell, Bob (June 4, 1961). "Orioles Sign Old Fort's Bob Plemmons". Asheville Citizen - Times (Sports).
- ^ a b c d e Collins, Dan (2016-01-19). Tales from the Wake Forest Demon Deacons Locker Room: A Collection of the Greatest Demon Deacon Stories Ever Told. Skyhorse Publishing, Inc. ISBN 9781613218518.
- ^ "Robert Plemmons Minor Leagues Statistics & History | Baseball-Reference.com". Baseball-Reference.com. Retrieved 2018-08-09.
- ^ "Center for Research in Scientific Computation". www4.ncsu.edu. Retrieved 2018-08-09.
- ^ a b "2013 Annual Report" (PDF). Office of Research and Sponsored Programs, Wake Forest University. 2013.
- ^ Chan, Raymond H.; Kan, Kelvin K.; Nikolova, Mila; Plemmons, Robert J. (2018-06-03). "A two-stage method for spectral-spatial classification of hyperspectral images". arXiv:1806.00836 [eess.IV].
- ^ "Reasons To Join Us – Department of Computer Science". college.wfu.edu. Retrieved 2018-08-09.
- ^ "Triple Threat". Wake Forest University Magazine: 32. December 1995 – via Wake Forest University.
- ^ Plemmons, R.J.; Tamura, T. (1965). "Semigroups with a maximal homomorphic image having zero". Proc. Japan Acad. 41: 681–685.
- ^ Plemmons, R. J. (1967). "On computing non-equivalent finite algebraic systems". Math. Algebra. 2: 80–84.
- ^ Harrod, W.; Plemmons, R. J. (1984). "Comparison of some direct methods for computing stationary distributions of Markov chains". SIAM J. Sci. Statist. Comput. 5: 453–469.
- ^ Plemmons, R. J. (1973). "Regular nonnegative matrices". Proc. Amer. Math. Soc. 39: 26–32.
- ^ a b "Google Scholar". scholar.google.com. Retrieved 2018-08-09.
- ^ Berman, Abraham; Plemmons, Robert J. (1994). Nonnegative Matrices in the Mathematical Sciences. Society for Industrial and Applied Mathematics. doi:10.1137/1.9781611971262. ISBN 9780898713213.
- ^ Bultheel, A.; Cools, R.; Chen, D.; Plemmons, P. (2010). "Nonnegativity constraints in numerical analysis". The Birth of Numerical Analysis, Volume 10. World Scientific. pp. 109–140. ISBN 978-9812836250.
- ^ Henkel, C.S.; Plemmons, R.J. (1991). "Parallel recursive least squares on a hypercube multiprocessor, in: Numerical Linear Algebra, Digital Signal Processing and Parallel Algorithms". NATO ASI Series. Ser. F 70: 571–577.
- ^ Berry, M.W.; Plemmons, R.J. (1985). "Computing a banded basis of the null space on the Denelcor HEP multiprocessor, in: Proceedings of the AMS/SIAM Conference on the Role of Linear Algebra in Systems Theory, Bowdoin, ME, USA". Contemporary Mathematics. 47: 7–23.
- ^ Kontovasilis, K.; Plemmons, R.J.; Stewart, W.J. (1991). "Block cyclic SOR for Markov chains with p-cyclic infinitesimal generator". Linear Algebra Appl. 154–156: 145–223.
- ^ Barker, G.; Plemmons, R.J. (1986). "Convergent iterations for computing stationary distributions of Markov chains". SIAM J. Algebraic Discrete Methods. 7: 390–398.
- ^ "CUHK :: Math :: International Workshop on Numerical Linear Algebra with Applications (November 17-18, 2013)". www.math.cuhk.edu.hk. Retrieved 2018-08-18.
- ^ a b Stock-Windsor, Christina. "A Clear View of Forever". Wake Forest Magazine. March 1997: 19–23.
- ^ Jillela, R.; Ross, A.; Boddeti, N.; Vijaya Kumar, B.; Hu, X.; Plemmons, R.J.; Pauca, P. (2016). "Chapter 13: Iris Segmentation for Challenging Periocular Images". In Bowyer, K; Burge, M. (eds.). Handbook of Iris Recognition. Springer. pp. 281–308. ISBN 978-1447167846.
- ^ Gracht, Joseph van der; Pauca, V. Paul; Setty, Harsha; Narayanswamy, Ramkumar; Plemmons, Robert; Prasad, Sudhakar; Torgersen, Todd (2004-07-15). "Iris recognition with enhanced depth-of-field image acquistion". 5438. doi:10.1117/12.542151.short (inactive 2018-08-29).
{{cite journal}}
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(help)CS1 maint: DOI inactive as of August 2018 (link) - ^ Hu, X.; Pauca, P.; Plemmons, R.J. (2011). "Iterative Directional Ray-based Iris Segmentation for Challenging Periocular Images". Biometric Recognition. LNCS7098.
- ^ a b "What Does the Government Get For Its Investment in Basic Research?". SIAM News. 1996.
- ^ a b United States. Cong. House. Subcommittee on National Security. Committee on Appropriations. Testimony on FY 1997 Appropriations for the Department of Defense. May 1, 1996. Chaired by the Hon. C.W. Bill Young. 104th Cong. 2nd sess. Washington: GPO, 1996 (statement of Robert J. Plemmons, Wake Forest University Professor, Representative of the Joint Policy Board for Mathematics).
- ^ "Robert Plemmons - The Mathematics Genealogy Project". genealogy.math.ndsu.nodak.edu. Retrieved 2018-08-19.
- ^ "SIAM Fellows: Class of 2013". siam.org.
{{cite web}}
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(help) - ^ Björck, Åke; Plemmons, Robert J.; Schneider, Hans (1981). Large scale matrix problems. North Holland. ISBN 9780444005632.
- ^ Golub, Gene H.; Shui-Hong, Lui; Franklin, T. Luk; Plemmons, Robert J. (1998-06-01). Scientific Computing: Proceedings of the Workshop, 10 - 12 March 1997, Hong Kong. Springer Science & Business Media. ISBN 9789813083608.
- ^ Meyer, Carl D.; Plemmons, Robert J. (2012-12-06). Linear Algebra, Markov Chains, and Queueing Models. Springer Science & Business Media. ISBN 9781461383512.
External links
- CS1 maint: DOI inactive as of August 2018
- 1938 births
- Living people
- 20th-century American mathematicians
- 21st-century American mathematicians
- Wake Forest Demon Deacons baseball players
- Wake Forest University faculty
- People from McDowell County, North Carolina
- Auburn University alumni
- Tri-City Atoms players
- Elmira Pioneers players
- Aberdeen Pheasants players
- University of Mississippi faculty
- University of Tennessee faculty
- North Carolina State University faculty