In Memory of
Louis Hunt

Ph.D. - Mathematics
Rice University - 1970

B.S. - Mathematics
Baylor University - 1964

Extended active optical lattice filters: Filter Synthesis, The Journal of the Optical society of America: A (2010), with M. Dabkowski, A. El Nagdi, K. Liu, D. L. MacFarlane, and V. Ramakrishna. 2010 - Publication

Extended active tunable optical lattice filters enabled by four-dimensional couplers: System Modeling, The Journal of the Optical Society of America: A, 26, No. 8 (2009), with A. El Nagdy, D. L. MacFarlane, and V. Ramakrishna. 2009 - Publication

Chip-scale analog optical signal processing, IEEE LEOS 2008 Annual Meeting, November 10-14, Newport Beach, CA (invited), with D. l. MacFarlane, L. R. Hunt, V. Ramakrishna, W. Zhou, N. Sultana, A. Stark, M. P. Christensen, and G. A. Evans. 2008 - Publication

Direct form I realization of active photonic filters, Journal of Fiber and Integrated Optics, 26 (2007), 201-215, with J. Tong, D. L. MacFarlane, I. Panahi, G. Kannan, G. A. Evans, M. P. Christensen. 2007 - Publication

Composition methods for four-port couplers in photonic integrated circuitry, Journal of Optical Society of America A, 23 (2006) 2919-2931, with N. Spears, T. Constantinescu, V. Ramakrishna, J. Tong, I. Panahi, D. L. MacFarlane, G. A. Evans, and M. P. Christensen. 2006 - Publication

Analysis and design of active optical filter structures with two-port couplers, IEEE/OSA Journal of Lightwave Technology, special issue on Optical Signal Processing, 24 (2006), 2637-2647 with G. Kannan, I. M. S. Panahi, D. L. MacFarlane, J. Tong, V. Ramakrishna, T. Constantinescu, and N. Spears.  2006 - Publication

Direct form I active optical filters realized in an integrated circuitry, IEEE International Conference on Electronics, Circuits and Systems, Nice, France (2006), with D. L. MacFarlane, J. Tong, I. Panahi, K. Wade, G. A. Evans, and M. P. Christensen. 2006 - Publication

Active optical lattice filters, IEEE LEOS Summer Topical Meeting, San Diego, CA (2005), 43-44, with D. L. MacFarlane, J. Tong, I. M. S. Panahi, T. Constantinescu, and V. Ramakrishna. 2005 - Publication

Program Head
University of Texas at Dallas [1992–1994]

Director
University of Texas at Dallas [1990–Present]

Professor
University of Texas at Dallas [1988–Present]

Professor
University of Texas at Dallas [1984–1997]

Research Engineer
NASA Ames Research Center [1980–1982]

Professor
Texas Tech University [1977–1984]

Associate Professor
Texas Tech University [1972–1977]

Assistant Professor
Texas Tech University [1969–1972]

Grants and Contracts

• Faculty Research Fellowship, summer 1974, $1,500.
• NSF Grant No. MPS75-5443, with M.J. Strauss, 1975, $12,000
• NSF Grant No. MCS76--05267 (2 years), with M.J. Strauss, 1976, 1977, $26,300.
• NSF Grant No. MCS76--05267 (2 Years), with  M.J. Strauss, 1978, 1979, $35,201.
• Joint Services Electronics Program under ONR Contract 76--'C--'1136, 1978--1984, $18,000, $58,795, $40,000.
• NASAAmes Research Center(23 months), Intergovernmental
• Personnel Agreement, 1980--1982, $111,193.
• NASAAmes Research CenterGrant No. NAG2--189, 1982-1983, $31,325.
• Berkeley--'Ames Conference on Nonlinear Problems in Control and Fluid Dynamics, NASA and AFOSR, with C.F. Martin, $40,000.
• NASAAmes Research CenterGrant No. NAG2--189, Supplement No. 1, 1983--1984, $34,493.
• Office of Naval Research under Contract N00014--8'--C--0104, 1984--1985, $135,000.
• NASAAmes Research CenterGrant No. NAG 2--366, 1985--'1986, $46,422.
• NASA Ames Research Grant No. NAG 2-366, Supplement No. 1, 1987-1988, $10,142.
• TexasAdvanced Research Program, 1990-1991, with R. DeGroat and D. Linebarger, $109,584.
• NASAAmes Research Center, Intergovernmental Personnel Agreement, 1991, $10,000.
• NASAAmes Research Center, Intergovernmental Personnel Agreement, 1992, $10,000.
• NASAAmes Research Center, Intergovernmental Personnel Agreement, 1994, $3,000.
• NSF Grant No. ECS-9300739 (2 years), 1994, 1995, $63,178.
• NASAAmes Research Center, Intergovernmental Personnel Agreement, 1996, $10,861.
• NASAAmes Research Center, Intergovernmental Personnel Agreement, 1998, $6,811.
• NASAAmes Research CenterGrant No. NAG 2--366, 1998, $11,000.
• DARPA Grant, 2007-2009 (18 months), $1.75 million, with D. L. MacFarlane and M. P. Christensen.

Patents

• System, Method, and Apparatus for Controlling Converters Using Input-Output Linearization, patent number 7482794, issued on January 27, 2009.
• UT-Dallas patent application #12/487,242, filed on June 18, 2009.
• International patent application filed on June, 10, 2010.

Addresses Given (* denotes invited address)

 

• "Extension of CR--functions," Several Complex Variables Session, International Congress of Mathematicians, Vancouver, B.C., August, 1974.

• *"Uniqueness of Analytic Continuation," Special Partial Differential Equations Session, International Congress of Mathematicians, Vancouver, B.C., August, 1974.
• *"The H. Lewy Examples and Their Implications," University of Georgia, December, 1974.
• *"Extensions of CR--'functions and Applications to Uniqueness of Analytic Continuation," Several Complex Variables Conference, University of Utah, January, 1975.
• *"Uniqueness of Analytic Continuation of a Real Hypersurface in
• Cn," American Math. Society Meeting, Washington, D.C., January, 1975.
• *"A Uniqueness Theory for the Induced Cauchy--Riemann Operator," A.M.S. Summer Conference in Several Complex Variables, Massachusetts, July--August, 1975.
• "A two--sided H. Lewy Extension Phenomenon," American Math. Society Meeting, Atlanta, January, 1978.
• "Uniqueness of the Cauchy Problem for Partial Differential Equations," Texas Academy of Science Meeting, Lubbock, Texas, 1978.
• "Properties of Solutions of the Tangential CR--equations," University of Texas, 1978.
• *"Controllability of Nonlinear Systems," Twelfth Asilomar Conference, November, 1978.
• "Reachable Sets for Nonlinear Systems,"Mathematical Systems Theory Week, Texas Tech University, May, 1979.
• *"Nonlinear Control," Conference on Applications of Algebra and Algebraic Geometry to Linear Systems Theory, Harvard University, June, 1979. 
• *"Control Theory for Nonlinear Systems," International Symposium on Mathematical Theory of Networks and Systems, Holland, July, 1979.
• "Reachable Sets for Nonlinear Systems in the Phase Plane," Thirteenth Asilomar Conference, November, 1979.
• "Controllability and Stabilizability," International Symposium on Circuits and Systems, Houston, April, 1980.

• *"Nonlinear Control Theory and Differential Geometry," (6 lectures) NASA Ames Research Center, September--October, 1980.
• *"Differential Geometry in Nonlinear Control," Mathematical Systems Theory Days, Texas Tech University, December, 1980.
• "Nonlinear Control," American Math. Society Meeting, San Francisco, January, 1981.
• "Equivalence of Nonlinear and Linear Systems," American Math. Society and SIAM Meeting, Reno, Nevada, April, 1981.
• *"Global Mappings of Nonlinear Systems," Joint Automatic Control Conference, Charlottesville, Virginia, June, 1981.
• *"Transforming Nonlinear Systems," Midwest Symposium on Circuits and Systems," Albuquerque, New Mexico, June, 1981.
• *"Poincare Lemma and Transformations of Nonlinear Systems," Mathematical Theory of Networks and Systems, Santa Monica, California, August, 1981.
• "Control of Nonlinear Time--varying Systems," Conference on Decision and Control, San Diego, December, 1981.
• *"Theory of Design Using Nonlinear Transformations," Automatic Control Conference, Arlington, Virginia, June, 1982.
• *"Robustness in Nonlinear Control," Differential Geometric Control Theory Conference, Michigan Tech University, June, 1982.
• *"Canonical Forms for Nonlinear Systems," SIAM 30th Anniversary Meeting, Stanford University, July, 1982.
• *"Applications to Aeronautics of the Theory of Transformation of Nonlinear Systems," CNRS Conference, Belle Ile, France, September, 1982.
• *"Applications of Differential Geometry to Automatic Flight Control," American Math. Society Meeting, University of Oklahoma, March, 1983.
• *"Nonlinear Transformations and Flight Control," Conference on Information Sciences and systems, Johns Hopkins University, March, 1983.
• *"Nonlinear Control of Aircraft," International Symposium on Mathematical Theory of Networks and Systems, BeerSheva, Israel, June, 1983.
• "Numerical Techniques in Automatic Control of Aircraft," Numerical Analysis Conference, Texas Tech University, September, 1983.

• *"Linear Approximations of Nonlinear Systems," Conference on Decision and Control, San Antonio, Texas, December, 1983.
• "Approximations and Nonlinear Systems," Mini--Conference on Systems Theory, Texas Tech University, December, 1983.
• *"Linearizations of Nonlinear Systems," American Math. Society Meeting, Louisville, Kentucky, January, 1984.
• "Canonical Forms and Nonlinear Observers," NASA Ames Research Center, July, 1984.
• "Nonlinear Observers," Third Regional Conference on Numerical Analysis, North Texas State University, September, 1984.
• *"Recognizing Linear Systems," Conference on Decision and Control, Las Vegas, Nevada, 1984.
• *"Design for Nonlinear Control Systems," University of Texas at Arlington, February, 1985.
• *"Time Responses of Nonlinear Systems," University of Texas at Austin, November, 1985.
• *"Control Design for Nonlinear Systems," University of Colorado November, 1985.
• *"Feedback Equivalence," Tutorial Workshop on Control Design for Nonlinear Systems, Conference on Decision and Control, Ft. Lauderdale, Florida, 1985.
• *"Automatic Control for Nonlinear Systems," Southern Methodist University, February, 1986.
• *"Applications of Nonlinear Systems Theory to Control Design," Engineering Foundation Conference, Qualitative Methods for Analysis of Nonlinear Dynamics, Henniker, New Hampshire, 1986.
• *"Output Time Response Approximation," American Control Conference, Seattle, Washington, 1986.
• *"Nonlinear Input--Output Systems," VII International Conference on Nonlinear Analysis and Applications, University of Texas at Arlington, July, August, l986.
• *"Nonlinear Filter Design," International Symposium on Mathematical Theory of Networks and Systems, Phoenix, Arizona, June, 1987.
• *"Nonlinear System Approximation," IEEE Conference on Decision and Control, Los Angeles, California, December, 1987.
• *"Canonical Coordinates and Feedback for Partial Differential Equations," International Conference on Theory and Applications of Differential Equations, Columbus, Ohio, March, 1988.

• *"Approximations of Nonlinear Control Systems," Southern Methodist University, April, 1988.
• *"Approximations and Identification of Nonlinear Systems", Karcher Lecture in Mathematics, University of Oklahoma, October, 1988.
• *"Approximations of Nonlinear Control Systems", International Conference on Advances in Communications and Control Systems, Baton Rouge, Louisiana, October, 1988.
• *"Nonlinear System Identification, "University of Texas at Arlington, October, 1988.
• "Parallels Between Control PDEs and Systems of ODEs", IEEE Conference Decision and Control, Austin, Texas, December, 1988.
• *"Realizations of Nonlinear Systems", University of Texas at Austin, January, 1989.
• "Identification of Nonlinear Systems, American Control Conference, Pittsburgh, PA, June, 1989.
• *"Control Design for Nonlinear Input-Output Systems", NASA Ames-UC Berkeley Nonlinear Flight Control Workshop, Berkeley, California, August, 1989.
• *"Nonlinear System Theory and Design", Southern Methodist University, April, 1990.
• "Nonlinear System Modeling", 7th International Conference on Systems Engineering, Las Vegas, NV, July, 1990.
• *"An Overview of Nonlinear Control Theory", Baylor University, October, 1990.
• *"Bounded Input-Bounded State Stability", Texas Systems Theory Conference, University of Texas at Austin, November, 1990.
• "Linear Dynamics Hidden by Input-Output Linearization for Square Systems", IEEE Conference on Decision and Control, Honolulu, Hawaii, December, 1990.
• "Identifying Nonlinear Systems from Experimental Data, IEEE International Conference on Acoustics, Speech, and Signal Processing, Toronto, May 1991.
• "Observers and Controllers for Feedback Linearizable Systems", Automatic Control Conference, Boston, MA, June 1991.
• "Observers for Feedback Linearizable Systems", Texas Systems Theory Conference, Texas Tech University, November 1991.
• "Extending Linear Subsystems of Nonlinear Systems", IEEE  Conference on Decision and Control, Brighton, England, December 1991.

• "Approximating Nonlinear Systems with Nonlinear ARMA and AR Models", IEEE International Conference on Acoustics, Speech, and Signal Processing, San Francisco, CA, March, 1992.
• *"Output Tracking of Nonanalytic Trajectories for Nonlinear Systems", World Congress of Nonlinear Analysts, Tampa, FL, August, 1992.
• *"Output Tracking for Nonlinear Systems", Symposium on Implicit and Nonlinear Systems, Arlington, TX, December, 1992.
• *"Parametrization Problem in Nonlinear Feedback Systems", IEEE Conference on Decision and Control, Tucson, AZ, December, 1992.
• "Output Tracking for Nonlinear Systems", Workshop on Systems and Control, University of Texas at Dallas, March, 1993.
• *"Modeling of Discrete-time Nonlinear Systems", Texas Systems Theory Conference, Automation and Robotics Research Institute, Ft. Worth, TX, November, 1993.
• "Identification of Discrete-time Nonlinear Systems", IEEE Conference on Decision and Control, San Antonio, TX, December, 1993.
• *"Output Tracking in Aircraft Control", Plenary talk at Conference on Applied Mathematics, Central Oklahoma University, February, 1994.
• *"Nonlinear System Guidance and Transmission Zero Dynamics", Texas Systems Day, Texas A&M University, November, 1994.
• "Computing Particular Solutions", IEEE Conference on Decision and Control, Lake Buena Vista, FL, December, 1994.
• *"Stable Inversion for Nonlinear Systems", Texas Systems Day, University of Houston, October, 1995.
• "Nonlinear System Guidance", IEEE Conference on Decision and Control, New Orleans, LA, December, 1995.
• "Dimensions of Linear Subsystems of Nonlinear Systems", IEEE Conference on Decision and Control, New Orleans, LA, December, 1995.
• *"Tracking for Nonlinear Systems", Iowa State University, March, 1996.
• *”Flight control Using Nonlinear System Inversion”, Volterra Centennial Symposium, UT Arlington, May, 1996.
• *”Aircraft Guidance Using Stable Inversion for Nonlinear Systems”, IEEE Control Systems Society, Southern Methodist University, September, 1996.

• *”Aircraft Guidance, Feedback Linearization, and Picard Processes”, Texas Systems Day, Southern Methodist University, October, 1996.
• ”Output Tracking and Steady State for Nonlinear Systems”, IEEE Conference on Decision and Control, Kobe, Japan, December, 1996.
• ”Nonlinear Observers for Output Tracking”, IEEE Conference on Decision and Control, Kobe, Japan, December, 1996.
• *”Perturbations of feedback linearizable systems with applications to automatic flight control”, AMS Summer Research Institute on Differential Geometry, University of Colorado at Boulder, June-July, 1997.
• *”Aircraft Guidance, Stable Inversion, and Parameter Variations, Texas Systems Day, Rice University, October, 1997.
• *”FFTs to Compute Nonlinear Steady-state Solutions”, Texas Systems Day, Texas A&M University, September, 1999.
• *”Singularities and Continuous Dependence of the Steady-state Solution”,IEEE Conference on Decision and Control, Phoenix, AZ, December, 1999.

Dr. Louis 'Bob' Hunt Named Teacher of the Year At The University of Texas at Dallas

RICHARDSON, Texas (April 23, 2003) - Dr. Louis R. "Bob" Hunt, a highly regarded, veteran professor in the Erik Jonsson School of Engineering and Computer Science, has been selected teacher of the year at The University of Texas at Dallas (UTD) for the 2002-2003 academic year. 

The award, which is provided each year by The University of Texas System Chancellor's Council to recognize excellence in teaching at each of the system's nine general academic institutions, is accompanied by a $5,000 prize and will be presented to Hunt May 9 at an Honors Convocation in the Conference Center on campus.

Dr. Louis 'Bob' Hunt Named Teacher of the Year At The University of Texas at Dallas

RICHARDSON, Texas (April 23, 2003) - Dr. Louis R. "Bob" Hunt, a highly regarded, veteran professor in the Erik Jonsson School of Engineering and Computer Science, has been selected teacher of the year at The University of Texas at Dallas (UTD) for the 2002-2003 academic year. 

The award, which is provided each year by The University of Texas System Chancellor's Council to recognize excellence in teaching at each of the system's nine general academic institutions, is accompanied by a $5,000 prize and will be presented to Hunt May 9 at an Honors Convocation in the Conference Center on campus.

UT Dallas Spinoff Receives $250,000 From State Tech Fund

Cirasys Inc., a spinoff company based on technology developed by researchers at the University of Texas at Dallas, recently received $250,000 from the Texas Emerging Technology Fund (TETF).

If certain milestones are met, the company could receive up to $750,000 more, said Paul Nichols, vice president of marketing at Cirasys and a UT Dallas alumnus (BA’95, MBA’98).

Located at UT Dallas’ Venture Development Center, a facility that houses several UT Dallas spinoff companies, Cirasys is focused on developing next-generation digital control and conversion technology for power converters. Power converters take power from a source, such as a wall plug or battery, and convert it to a voltage that is needed by a particular electronic device.

UT Dallas Spinoff Receives $250,000 From State Tech Fund

Cirasys Inc., a spinoff company based on technology developed by researchers at the University of Texas at Dallas, recently received $250,000 from the Texas Emerging Technology Fund (TETF).

If certain milestones are met, the company could receive up to $750,000 more, said Paul Nichols, vice president of marketing at Cirasys and a UT Dallas alumnus (BA’95, MBA’98).

Located at UT Dallas’ Venture Development Center, a facility that houses several UT Dallas spinoff companies, Cirasys is focused on developing next-generation digital control and conversion technology for power converters. Power converters take power from a source, such as a wall plug or battery, and convert it to a voltage that is needed by a particular electronic device.

University Remembers Dr. Louis “Bob” Hunt, Jonsson School Founding Professor

Dr. Louis “Bob” Hunt, professor emeritus of electrical and computer engineering who conducted research for NASA and helped launch the Erik Jonsson School of Engineering and Computer Science at The University of Texas at Dallas, passed away Jan. 28. He was 78.

Hunt was known for his pioneering work in the 1980s that paved the way for dynamic control systems that make operations such as automated flight control possible. Hunt, who retired in 2009, was a beloved instructor who received in 2003 a UT System Chancellor’s Council Outstanding Teaching Award. He was also a fellow of the Institute of Electrical and Electronics Engineers (IEEE).

Professional Societies

• Fellow of the Institute of Electrical and Electronics Engineers (IEEE)
• IEEE Control Systems Society (Past Secretary, Past Vice-Chairman, and Past Chairman of Dallas-Ft. Worth Chapter) 
• IEEE Circuits and Systems Society (Past Secretary and Past CoChairman of Dallas Chapter)
• IEEE Acoustics, Speech and Signal Processing Society (Publications CoChairman of l987 ICASSP and Past Secretary of Dallas Chapter)
• IEEE Power Electronics Society
• IEEE Laser and Electro-Optics Society
• Licensed Professional Engineer in the state of Texas

Conferences Attended

 

• Several Complex Variables --Utah (1970)
• American Math. Society -- Nevada (1972)
• Several Complex Variables -- Rice University (1972) (as an invited participant)
• SIAM--' University of Texas (1972)
• CBMS Regional Conference --Texas Tech University (1973)
• Math. Assoc. of America -- Austin (1974)
• Conference on Ill--posed Problems -- University of New Mexico (1974) (as an invited participant)
• International Congress of Mathematicians -- Vancouver (1974)
• Several Complex Variables -- University of Utah (1975) (as an invited speaker)
• American Math. Society -- Washington, D.C. (1975)
• CBMS Regional Conference -- Texas Tech University (1975)
• Several Complex Variables -- Massachusetts (1975) (as an invited speaker)
• Nonlinear Diffusion -- Houston (1976) (as an invited participant)
• History of Applied Mathematics -- Arlington (1976)
• American Math. Society -- San Antonio (1976)
• History of Analysis -- Rice University (1977)
• P.D.E. Conference -- University of Utah (1977) (as an invited participant)
• TAAAMS Meeting -- Tarleton State (1977)

• American Math. Society -- Atlanta (1978)
• TexasAcademy of Science -- Texas Tech University (1978)
• Applied Mathematics Conference -- University of Texas (1978)
• American Math. Society -- Providence (1978) -- attended short course on systems and control theory
• Twelfth Asilomar Conference on Circuits, Systems, and Computers (1978) (as an invited speaker)
• TexasSystems Workshop -- Southern Methodist University (1979)
• Large--'Scale Systems -- The Commonality and Diversity -- Texas Tech University (1979)
• Mathematical Systems Theory Week -- Texas Tech University (1979)
• Linear Systems Theory -- Harvard (1979)
• International Symposium on Mathematical Theory of Networks and Systems -- Delft, Holland (1979) (as an invited speaker)
• Thirteenth Asilomar Conference on Circuits, Systems, and Computers (1979)
• International Symposium on Circuits and Systems-- Houston (1980)
• Workshop on the Mathematical Theory of Networks and Systems  -- Virginia Beach (1980)
• Mathematical Systems Theory Days --Lubbock (1980)
• Conference on Decision and Control -- Albuquerque (1980)
• Joint Services Electronics Program Review -- Berkeley (1980)
• American Math. Society -- San Francisco (1981)
• American Math. Society and SIAM -- Reno (1981)
• Joint Automatic Control Conference -- Charlottesville (1981) (as an invited speaker)
• Midwest Symposium on Circuits and Systems -- Albuquerque (1981) as an invited speaker)
• Mathematical Theory of Networks and Systems -- Santa Monica (1981)(as an invited speaker)
• Wescon Meeting -- San Francisco (1981)
• Conference on Decision and Control -- San Diego (1981)

• Automatic Control Conference -- Arlington, Virginia (1982) (as an invited speaker)
• Differential Geometric Control Theory Conference -- Michigan Tech University (1982) (as an invited speaker)
• SIAM30th Anniversary Meeting -- Stanford University (1982) (as aninvited speaker)
• CNRS Conference -- Belle Isle, France (1982) (as an invited speaker)
• Conference on Decision and Control -- Orlando (1982)
• American Math. Society -- University of Oklahoma (1983) (as an invited speaker)
• Conference on Information Sciences and Systems --Johns Hopkins University (1983) (as an invited speaker)
• SIAMRegional Meeting -- Texas Tech University (1983)
• Berkeley-- Ames Conference on Nonlinear Problems in Control and Fluid Dynamics -- University of California , Berkeley (1983) (as acodirector of the conference)
• International Symposium on Mathematical Theory of Networks and Systems -- BeerSheva, Israel (1983) (as an invited speaker)
• Numerical Analysis Conference -- Texas Tech University (1983)
• Conference on Decision and Control -- San Antonio (1983) (as an invited speaker)
• Mini--'Conference on Systems Theory -- Texas Tech University (1983) American Math. Society -- Louisville (1984) (as an invited speaker)Numerical Analysis Conference -- North Texas State University (1984)
• ONR/Honeywell Workshop on Advances in Multivariable Control -- Minneapolis (1984) (as an invited participant)
• Conference on Decision and Control -- Las  Vegas (1984) (as an invited speaker)
• Automatic Control Conference -- Boston, Massachusetts (1985)
• Federal High Tech Conference -- Dallas, Texas (1985)
• Conference on Decision and Control -- Ft.  Lauderdale (1985) (to present tutorial workshop)
• Research Issues in Robotics -- NASA Ames Research Center (l986) (as an invited participant)

• Engineering Foundation Conference -- Henniker, New Hampshire (l986) (as an invited speaker)
• Automatic Control Conference -- Seattle, Washington (1986) (as an invited speaker)
• VII International Conference on Nonlinear Analysis and Applications -- University of Texas at Arlington (1986) (as an invited speaker)
• MIDCON 86 --  Dallas, Texas (1986) (as member of Inner Circle)
• International Conference on Acoustics, Speech, and Signal Processing - Dallas (1987) (as Publications Cochairman).
• International Symposium on Mathematical Theory of Networks and Systems - Phoenix (l987) (as an invited speaker).
• Conference on Decision and Control - Los Angeles (l987) (as an invited speaker).
• International Conference on Theory and Applications of Differential Equations - Columbus (1988) (as an invited speaker).
• NASA workshop on Modal Logic, Event Driven Control, and Autonomous Systems-NASA Ames Research Center (1988) (as an invited participant).
• International Conference on Advances in Communication and Control Systems - Baton Rouge, Louisiana (1988) (as an invited speaker).
• Conference on Decision and Control - Austin, Texas (1988) (as an invited speaker).
• Automatic Control Conference - Pittsburgh, Pennsylvania (1989)
• NASA Ames - UC Berkeley Nonlinear Flight Control Workshop - Berkeley, California (1989) (as an invited speaker).
• International Conference on Acoustics, Speech, and Signal Processing - Albuquerque (1990).
• Seventh International Conference on Systems Engineering -
• Las Vegas(1990).
• Texas Systems Theory Conference- University of Texas at Austin (1990) (as an invited speaker).
• Conference on Decision and Control - Honolulu, Hawaii (1990).
• International Conference on Acoustics, Speech, and Signal Processing - Toronto (1991).
• Automatic Control Conference - Boston, MA (1991).
• TexasSystems Theory Conference - Texas Tech University (1991) (as an invited speaker).

• Conference on Decision and Control - Brighton, England (1991).
• International Conference on Acoustics, Speech, and Signal Processing - San Francisco, CA (1992).
• World Congress of Nonlinear Analysts - Tampa, FL (1992) (as an invited speaker).
• TexasSystems Day - University of Texas at Dallas (1992) (as a conference organizer).
• Symposium on Implicit and Nonlinear Systems - Arlington, TX (1992) (as an invited speaker).
• Conference on Decision and Control - Tucson, AZ (1992) (as an invited speaker and session organizer).
• National Chairs of Mathematical Sciences Meeting - Washington, D.C. (1992).
• TAAAMS Meeting - Austin, TX (1992).
• Joint Mathematics Meeting - San Antonio, TX (1993).
• National Chairs of Mathematical Sciences Meeting - Washington, D.C. (1993).
• TexasSystems Day - Automation and Robotics Research Institute - Ft. Worth, TX (1993) (as an invited speaker).
• Conference on Decision and Control - San Antonio, TX (1993)
• Joint Mathematics Meeting - Cincinnati, OH (1994)
• Conference on Applied Mathematics - Central Oklahoma University (1994) (as an invited plenary speaker).
• National Chairs of Mathematical Sciences Meeting - Washington, D.C. (1994).
• TexasSystems Day - Texas A&M University (1994) (as an invited speaker)
• Conference on Decision and Control - Lake Buena Vista, FL (1994) (as a member of the program committee).
• TexasSystems Day - University of Houston (1995) (as an invited speaker)
• Conference on Decision and Control - New Orleans, LA (1995)
• Volterra Centennial Symposium - University of Texas at Arlington (1996) (as an invited speaker)
• TexasSystems Day - Southern Methodist University (1996) (as an invited speaker)
• Conference on Decision and Control - Kobe, Japan (1996)
• AMS Summer Research Institute on Differential Geometry and Control - University of Colorado at Boulder (1997) (as an invited speaker)
• TexasSystems Day - Rice University (1997) (as an invited speaker)
• TexasSystems Day – Texas A&M University (1999) (as an invited speaker)
• Conference on Decision and Control – Phoenix, AZ (1999)
• TexasArea Mems Workshop, Southern Methodist University (2000)
• TEXMEMS III – University of Texas at Dallas (2001)
• IEEE LEOS/OSA Summer Topical Meeting – San Diego, CA (2005)

Committees

At Texas Tech University (*) denotes those chaired)

• Preliminary Exam Committee --1970, 1971
• Book Selection Committee -- 1972
• Graduate Programs and Policies Committee -- 1973--1975, 1979--1981
• *Hiring Committee -- 1974--1976
• Organizing Committee for NSF Conference at Tech -- 1975
• Special Hearing Panel for the Tenure and Privilege Committee
• Undergraduate Committee -- 1976--1977
• *Graduate Committee --1977--979
• Organizing Committee for TAS Conference at Tech -- 1978

• Coorganizer for Mathematical Systems Week -- 1979
• Chairperson Selection Committee --1979
• Committee on External Funding --1983
• Executive Committee --1983

At The University of Texas at Dallas (*denotes those chaired)

• Designed Programs and Courses in Systems and Signal Processing with P. Odell -- 1984
• CQ Committee (twice)
• Promotion Committees
• Academic Senate
• *Academic Search Committee - Applied Mathematics
• Academic Search Committee - Electrical Engineering
• Member of Alliance for Minority Participation Calculus/Pre-calculus Revision Task Force
• Program Review Committee
• Committee on Educational Programs of Self Study for SACSCOC: Chair, Subcommittee on Graduate Programs
• * Graduate Committee – Electrical Engineering
• CEP Committee
• University Research Integrity Committee
• ErikJonsson SchoolPeer Review Committee
• Electrical Engineering Personnel Review Committee
• Faculty Hearing Tribunal
• Electrical Engineering Department Chair Search Committee
• ErikJonsson SchoolCourse Evaluation Committee
• ErikJonsson SchoolResearch Advisory Committee
• Chancellor’s Outstanding Teaching Award Committee
• ErikJonsson SchoolIndustrial Advisory Board Executive Committee
• ErikJonsson SchoolAcademic Affairs Committee
• ErikJonsson SchoolTeaching Effectiveness Committee
• Dean’s Advisory Committee on Continuation
• Electrical Engineering Open Search Committee
• Digital Signal Processing Search Committee                  

Professional Activities

Reviewer:

• Zentralblatt fur Mathematik
• Mathematical Reviews
• National Science Foundation (Mathematics, Engineering, SBIR, and International Programs)
• National Research Council (Mathematics and Engineering)
• National Science Foundation Review Panel for Engineering Systems
• Army Research Office
• Fellows Evaluation Committee for IEEE Control Systems Society (3 years)

Editor:

• Associate Editor - Systems and Control Letters (through July, 2007)

Referee: 

• Transactions American Mathematical Society
• Indiana Journal of Mathematics
• IEEE Transactions on Automatic Control
• IEEE Transactions on Circuits and Systems
• IEEE Transactions on Aerospace and Electronic Systems
• IEEE Transactions on Signal Processing
• IEEE Transactions on Control Systems Technology
• IEEE Transactions on Energy Conversion
• Mathematical Systems Theory
• Automatica
• Mathematical Sciences Press
• AIAA Journal of Guidance, Control and Dynamics
• SIAM Journal on Control and Optimization
• Applied Mathematics and Optimization
• Optimal Control, Applications and Methods
• Acta Applicandae Mathematics
• Systems and Control Letters
• Mathematics of Control, Signals, and Systems
• Differential and Integral Equations, An International Journal
• Computers and Mathematics with Applications
• ASME Journal of Dynamic Systems, Measurements, and Control
• Mathematical Systems, Estimation, and Control
• Computational Optimization and Application
• Journal of Optimization Theory and Applications
• Journal of Dynamics, Measurements, and Control
• Journal of Mathematical Systems, Estimation, and Control
• Computational Optimization and Applications
• Mathematical and Computer Modeling
• Robust and Nonlinear Control
• International Journal on Control Circuits, Systems, and Signal Processing
• Encyclopedia of Electrical and Electronics Engineering
• Applied Mathematical Letters
• IEEE/OSA Journal on Lightwave Technology

Meetings Organization:

• Have chaired or co-'chaired many sessions at various meetings
• Director of 1983 Berkeley-'Ames Conference on Nonlinear Problems in Control and Fluid Dynamics, University of California, Berkeley, with C. Martin
• Presented Tutorial Workshop on Control Design for Nonlinear Systems, 24th  IEEE Conference on   Decision and Control, with J. Baillieul, G. Meyer, and R. Su
• Publications Chairman of 1987 IEEE International Conference on Acoustics, Speech, and Signal Processing, with P. Odell
• Member of Inner Circle, MIDCON 86
• Director of Texas Systems Day, University of Texas at Dallas, 1992
• Program Committee of IEEE Conference on Decision and Control, Lake Buena Vista, FL, 1994

Seminar Organizations

• Differential Geometry and Topology, Texas Tech University
• Several Complex Variables, Texas Tech University
• Partial Differential Equations, Texas Tech University
• Algebraic Geometry, Texas Tech University
• Applicable Mathematics, Texas Tech University
• Applied Mathematics and Statistics, University of Texas at Dallas, with P. Moschopoulos
• Math - EE Seminar, University of Texas at Dallas
• Electrical Engineering Speaker Series – University of Texas at Dallas

Advisor

• Kappa Mu Epsilon Faculty Sponsor, Texas Tech University, 1976 -1978
• Director of Graduate Studies for the Texas Tech University
• Mathematics Department, 1977-1979
• Graduate Advisor in Applied Mathematics, University of Texas at Dallas, 1984-1990.
• Texas Society of Professional Engineers (TSPE) Faculty Advisor, University Of Texas at Dallas, 2007-present.
• Planned, organized and staged with TSPE “Wright Stuff” for UTD Science Olympiad.