Chen Guanrong

{{Infobox scientist

| name = Guanrong Chen

| image =

| image_size =

| caption =

| birth_date = {{birth year and age|1948}}

| birth_place = Guangzhou, China

| death_date =

| death_place =

| citizenship =

| nationality =

| fields = Nonlinear Systems
Complex Networks
Chaos Theory

| known_for = Chen attractor
Lu Chen attractor
Multiscroll attractor

| workplaces = Rice University
University of Houston
City University of Hong Kong

| alma_mater = Sun Yat-sen University
Texas A&M University

| doctoral_advisor = Charles K. Chui

| academic_advisors =

| doctoral_students = Jinhu Lu

| notable_students =

| author_abbrev_bot =

| author_abbrev_zoo =

| influences =

| influenced =

| awards =

| website = {{URL|http://www.ee.cityu.edu.hk/~gchen | City University of Hong Kong — Guanrong Chen}}

| religion =

| signature =

| footnotes =

}}

Guanrong Chen ({{lang|zh|陈关荣}}) or Ron Chen{{Cite web|title=G. Ron Chen|url=http://www.ee.cityu.edu.hk/~gchen/6605_description.htm|access-date=2020-12-27|website=www.ee.cityu.edu.hk}} is a Chinese mathematician who made contributions to Chaos theory. He has been the chair professor and the founding director of the Centre for Chaos and Complex Networks at the City University of Hong Kong since 2000. Prior to that, he was a tenured full professor at the University of Houston, Texas.{{cite web|url=http://www.ee.cityu.edu.hk/~gchen/pdf/ChenGR_E.pdf|title=Guanrong Chen|publisher=City University of Hong Kong|access-date=April 4, 2020}} Chen was elected Member of the Academy of Europe in 2014,{{cite web|title=Member|url=https://www.ae-info.org/ae/Member/Chen_Guanrong|website=Academy of Europe}} elected Fellow of The World Academy of Sciences in 2015,{{cite web | url=http://twas.org/article/twas-elects-44-new-fellows | title=TWAS elects 44 new Fellows | date=19 November 2015 | publisher=World Academy of Sciences | access-date=Nov 19, 2015}} and elected IEEE Fellow in 1997. He is currently the editor-in-chief for the International Journal of Bifurcation and Chaos.{{cite web | url=https://www.worldscientific.com/page/ijbc/editorial-board | title=International Journal of Bifurcation and Chaos | publisher=World Scientific | access-date=April 5, 2020}}

He is known for his contributions to Chaos theory and Bifurcation theory, including the Chen attractor,http://www.ee.cityu.edu.hk/~gchen/pdf/Lorenz-Chen.pdf {{Bare URL PDF|date=March 2022}}{{Cite web |url=http://www.worldscinet.com/ijbc/09/0907/S0218127499001024.html |title=Yet another chaotic attractor |access-date=2020-12-27 |archive-date=2004-12-24 |archive-url=https://web.archive.org/web/20041224221945/http://www.worldscinet.com/ijbc/09/0907/S0218127499001024.html |url-status=dead }} a kind of dynamical system attractor named after him (see Multiscroll attractor).

Early life

In 1948, Chen Guanrong was born in Guangzhou, China. In 1978, he enrolled in the Guangzhou Sun Yat-sen University. In 1981 he graduated with a master's degree in computational mathematics.{{Cite web|url=https://ieeexplore.ieee.org/author/37086255889|access-date=2020-12-27|website=IEEE}}

He then studied in the US and in 1987 earned a PhD in applied math from Texas A&M University.

Academia

From 1987 to 1990 he worked as a professor at Rice University. From 1990 to 1999 he worked at University of Houston and became a full tenured professor.

In 2000, he became a chair professor at the City University of Hong Kong, founding the Centre for Chaos and Complex Networks.

He conducts research on chaos, control theory, bifurcations, nonlinear dynamics, complex systems, etc.

= IEEE =

From 1999 to 2001, he served as the chairman for the IEEE Nonlinear Circuits and Systems Technical Committee. Since 2008, he has served as Editor in Chief of IEEE Circuits and Systems Magazine.

Since 2010, he has served as Editor in Chief of International Journal of Bifurcation and Chaos. Before, from 1991 to 2009, he was editor for the International Journal of Bifurcation and Chaos. From 2004 to 2007, he was Deputy Editor-in-Chief for the IEEE Transactions on Circuits and Systems. From 2004 to 2005, he was an editor for the IEEE Transactions on Automatic Control.

= Journals and conferences =

From 2008 to 2009, he was Deputy Editor-in-Chief and associate editor for the International Journal of Circuit Theory and Applications.

From 2006 to 2008, he was editor for the Journal of Control Science and Engineering.

Since 1995, he has been editor for the Chinese Academy of Sciences Journal on Control Theory and Applications.

From 2001 to 2014, he was editor for the Journal of Systems Science and Complexity.

From 2009 to 2014, he served as the chairman for the Chinese Society's Complex Systems and Networks Committee.

Research

He is known for the Chen attractor, Lu Chen attractor, and other works on Multiscroll attractors. He conducts research on chaos, control theory, bifurcations, nonlinear dynamics, complex systems, etc.

= Chen attractor =

Chen discovered the Chen equations, a system of coupled differential equations that produce the Chen's attractor, a type of Lorenz attractor.

The equations that govern the Chen system are:{{Cite journal|last1=CHEN|first1=GUANRONG|last2=UETA|first2=TETSUSHI|title=Yet Another Chaotic Attractor|date=July 1999|url=http://dx.doi.org/10.1142/s0218127499001024|journal=International Journal of Bifurcation and Chaos|volume=09|issue=7|pages=1465–1466|doi=10.1142/s0218127499001024|bibcode=1999IJBC....9.1465C|issn=0218-1274}}

: $\frac{dx}{dt} = a (y - x)$

: $\frac{dy}{dt} = (c- a)x - xz+cy$

: $\frac{dz}{dt} = xy - bz$

where $a=35, b=3, c=28$ .

Publications

Chen Guanrong has published over 650 papers and over 300 abstracts on chaos theory and related fields. He currently has over 60,000 citations, making him one of the most cited leaders in the field.

Chen G., Ueta T. Yet another chaotic attractor. Journal of Bifurcation and Chaos, 1999 9:1465.
Chen, Guanrong; Jinhu Lu (2006). "GENERATING MULTISCROLL CHAOTIC ATTRACTORS: THEORIES, METHODS AND APPLICATIONS" (PDF). International Journal of Bifurcation and Chaos.{{cite journal|last=Chen|first=Guanrong|author2=Jinhu Lu|title=Generating Multiscroll Chaotic Attractors: Theories, Methods and Applications|year=2006|url=http://www.ee.cityu.edu.hk/~gchen/pdf/LC-IJBC06-survey.pdf|journal=International Journal of Bifurcation and Chaos|volume=16|issue=4|pages=775–858|bibcode=2006IJBC...16..775L|doi=10.1142/s0218127406015179|access-date=2012-02-16}}
Fangyue Chen, Guolong He, Xiubin Xu, and Guanrong Chen, "Implementation of Arbitrary Boolean Functions via CNN" (a paper on Cellular neural networks).{{Cite book|last1=Chen|first1=F.|last2=He|first2=G.|last3=Xu|first3=X.|last4=Chen|first4=G.|title=2006 10th International Workshop on Cellular Neural Networks and Their Applications |chapter=Implementation of Arbitrary Boolean Functions via CNN |date=August 2006|chapter-url=https://ieeexplore.ieee.org/document/4145881|pages=1–6|doi=10.1109/CNNA.2006.341641|isbn=1-4244-0639-0|s2cid=9648461}}

Books

Kalman Filtering with Real-Time Applications{{Cite book|last1=Chui|first1=Charles K.|last2=Chen|first2=Guanrong|date=1987|title=Kalman Filtering with Real-Time Applications|url=https://link.springer.com/book/10.1007/978-3-662-02508-6|series=Springer Series in Information Sciences|volume=17|language=en-gb|doi=10.1007/978-3-662-02508-6|isbn=978-3-662-02510-9|issn=0720-678X}}
Linear Systems and Optimal Control{{Cite book|last1=Chui|first1=Charles K.|url=https://www.springer.com/gp/book/9783642647871|title=Linear Systems and Optimal Control|last2=Chen|first2=Guanrong|date=1989|publisher=Springer-Verlag|isbn=978-3-642-64787-1|series=Springer Series in Information Sciences|location=Berlin Heidelberg|language=en}}
Hopf Bifurcation Analysis: A Frequency Domain Approach{{Cite book|last1=Moiola|first1=Jorge L|url=https://www.worldscientific.com/worldscibooks/10.1142/3070|title=Hopf Bifurcation Analysis|last2=Chen|first2=Guanrong|date=April 1996|publisher=WORLD SCIENTIFIC|isbn=978-981-02-2628-2|series=World Scientific Series on Nonlinear Science Series A|language=en|doi=10.1142/3070}}
From Chaos to Order: Methodologies, Perspectives and Applications{{Cite book|last1=Chen|first1=Guanrong|url=https://www.worldscientific.com/worldscibooks/10.1142/3033|title=From Chaos to Order|last2=Dong|first2=Xiaoning|date=June 1998|publisher=WORLD SCIENTIFIC|isbn=978-981-02-2569-8|series=World Scientific Series on Nonlinear Science Series A|language=en|doi=10.1142/3033}}
Dynamics of the Lorenz System Family: Analysis, Control and Synchronization
Complex Networks: Models, Dynamics and Control{{Cite web|title=Fundamentals of Complex Networks: Models, Structures and Dynamics {{!}} Wiley|url=https://www.wiley.com/en-us/Fundamentals+of+Complex+Networks%3A+Models%2C+Structures+and+Dynamics-p-9781118718117|access-date=2020-12-27|website=Wiley.com|language=en-us}}
Integration of Fuzzy Logic and Chaos Theory
Evolutionary Algorithms and Chaotic Systems

Awards and honors

IEEE Fellow (1997)
Honorary Doctorate of University of Le Havre, Normandy, France (2014)
Honorary Doctorate (Doctoris Honoris Causa) of Saint Petersburg State University, Russia (2011)http://www.ee.cityu.edu.hk/~gchen/images/Honorary_Doctorate_2011s.JPG {{Bare URL image|date=March 2022}}
Euler Gold Medal (2011)
SCI Highly Cited Researcher in Engineering, Thomson Reuters (since November 2009)http://www.ee.cityu.edu.hk/~gchen/pdf/GChen%20ISI%20Highly%20Cited%20Researcher.pdf {{Bare URL PDF|date=March 2022}}
Harden-Simons Annual Prize for Outstanding Journal Paper, American Society of Engineering Education (1998)
Best Paper Award (2002), Institute of Information Theory and Automation, Academy of Sciences of the Czech Republic
IEEE M. Barry Carlton Best Annual Paper Award, IEEE Aerospace and Electronic Systems Society (2001)
IEEE Guillemin-Cauer Best Annual Paper Award, IEEE Circuits and Systems Society (2005)
IET Premium Best Paper Award (2013)
State Natural Science Award, China (2008, 2012, 2016)
President's Award of City University of Hong Kong (2019)
Ho-Leung-Ho-Lee Science and Technology Award (2010)
Junior Faculty Research Excellence Award, University of Houston (1993)

= Honorary professorships =

Chen Guanrong has given lectures in more than 30 countries and holds honorary professor positions in many universities around the world, including but not limited to: