Anders Lindquist

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Anders Lindquist
Anders Lindquist.jpg
Born (1942-11-21) November 21, 1942 (age 78)
Lund, Sweden
Alma materKTH Royal Institute of Technology
AwardsW. T. and Idalia Reid Prize in Mathematics (2009)[1]
Honorary Doctorate from The Technion (2010)[2]
IEEE Control Systems Award (2020)
Scientific career
FieldsMathematics and Systems Theory

Anders Gunnar Lindquist (born November 21, 1942) is a Swedish applied mathematician and control theorist. He has made contributions to the theory of partial realization, stochastic modeling, estimation and control, and moment problems in systems and control. In particular, he is known for the discovery of the fast filtering algorithms for (discrete-time) Kalman filtering in the early 1970s, and his seminal work on the Separation Principle of Stochastic Optimal Control and, in collaborations with Giorgio Picci,[3] the Geometric Theory for Stochastic Realization.[4][5] Together with late Christopher I. Byrnes (dean of the School of Engineering & Applied Science at Washington University in St. Louis from 1991 to 2006) and Tryphon T. Georgiou (Vincentine Hermes-Luh Chair in Electrical Engineering at the University of Minnesota), he is one of the founder of the so-called Byrnes-Georgiou-Lindquist school. They pioneered a new moment-based approach for the solution of control and estimation problems with complexity constraints.

He has been Professor in three continents: America (University of Kentucky, USA), Europe (Royal Institute of Technology, Sweden) and Asia (Shanghai Jiao Tong University, China).


Lindquist was born in Lund, Sweden. He received his PhD degree from KTH Royal Institute of Technology in Stockholm under the supervision of Lars Erik Zachrisson,[6] and was appointed a Docent of Optimization and Systems Theory in 1972. Subsequently, he held visiting positions at the University of Florida, Brown University, and the State University of New York at Albany, until 1974, when he joined the faculty of Mathematics at the University of Kentucky. He remained at Kentucky until 1983 at which time he returned to the Royal Institute of Technology as a Professor and the Chair of Optimization and Systems Theory.

Over the years, Lindquist has held visiting and affiliate positions at the Washington University in St. Louis, the University of Padova, Consiglio Nazionale delle Ricerche, Arizona State University, the International Institute of Applied Systems Analysis in Vienna, the Russian Academy of Sciences in Moscow, East China Normal University in Shanghai, the Technion in Haifa, the University of California at Berkeley, and the University of Kyoto. He was the Head of the Mathematics Department at the Royal Institute of Technology from 2000 until 2009. Between 2006 and 2014 he was the Director of the Strategic Research Center for Industrial and Applied Mathematics (CIAM)[7] at KTH. In 2011 he was appointed Zhiyuan Chair Professor and Qian Ren Scholar at Shanghai Jiao Tong University.[8][9]

Lindquist is a member of the Royal Swedish Academy of Engineering Sciences (IVA), a Foreign Member of the Chinese Academy of Sciences (2015),[10][11] a Member[12][circular reference] of the Academia Europaea (Academy of Europe), an Honorary Member of Hungarian Operations Research Society,[13] and a Foreign Member of Russian Academy of Natural Sciences. He is a Life Fellow of the IEEE,[14] a Fellow of the Society for Industrial and Applied Mathematics[15] and a Fellow of the International Federation of Automatic Control.[16] He was awarded the SIGEST of the SIAM Review (2001) and the George S. Axelby Award of the IEEE Control Systems Society (2003).[17][18] He was the Zaborszky Distinguished Lecturer[19] in 2000 and the Distinguished Israel Pollak Lecturer in 2005 and 2006. He received the W. T. and Idalia Reid Prize in Mathematics in 2009 for his "fundamental contributions to the theory of stochastic systems, signals, and control"[20][21] and an Honorary Doctorate (Doctor Scientiarum Honoris Causa) from The Technion in 2010.[22] He is the recipient of the 2020 IEEE Field Medal in Systems and Control, the IEEE Control Systems Award. Anders Lindquist is a Knight Commander with Star of the Order of the Holy Sepulchre.

Selection of publications[edit]

  • A. Lindquist, On feedback control of linear stochastic systems, SIAM J.Control, 11 (May 1973), 323–343.
  • A. Lindquist, "A new algorithm for optimal filtering of discrete-time stationary processes," SIAM J. Control 12 (November 1974) 736–746.
  • A. Lindquist with G. Picci, On the stochastic realization problem, SIAM J. Control and Optimization, 17 (1979), 365–389.
  • W.B. Gragg and A. Lindquist, On the partial realization problem, Linear Algebra and Appl.50 (1983), 277–319.
  • A. Lindquist and G. Picci, Realization theory for multivariate stationary Gaussian processes, SIAM J. Control and Optimization 23 (1985), 809–857.
  • C. I. Byrnes, A. Lindquist, S. V. Gusev and A. S. Matveev, A complete parameterization of all positive rational extensions of a covariance sequence, IEEE Transactions on Automatic Control AC-40 (1995), 1841–1857.
  • A. Lindquist and V.A. Yakubovich, Optimal damping of forced oscillations in discrete-time systems, IEEE Transactions on Automatic Control AC-42 (1997), 786–802.
  • C. I. Byrnes, T. T. Georgiou and A. Lindquist, A new approach to spectral estimation: A tunable high-resolution spectral estimator, IEEE Trans. Signal Process. SP-49 (2000), 3189–3205.
  • C. I. Byrnes, T. T. Georgiou and A. Lindquist, A generalized entropy criterion for Nevanlinna-Pick interpolation with degree constraint, IEEE Transactions on Automatic Control AC-46 (2001), 822–839.
  • C. I. Byrnes, S. V. Gusev and Lindquist, From finite covariance windows to modeling filters: A convex optimization approach, SIAM Review 43 (December 2001), 645–675.
  • C. I. Byrnes, T. T. Georgiou, A. Lindquist and A. Megretski, Generalized interpolation in H-infinity with a complexity constraint, Trans. American Mathematical Society 358 (2006), no. 3, pp. 965–987.
  • T.T. Georgiou and A. Lindquist, The separation principle in stochastic control, redux, IEEE Transactions on Automatic Control 58 (October 2013), 2481–2494.
  • A. Lindquist and G. Picci, The circulant rational covariance extension problem: the complete solution, IEEE Transactions on Automatic Control 58 (November 2013), 2848–2861.
  • J. Karlsson, A. Lindquist and A. Ringh, The multidimensional moment problem with complexity constraint, Integral Equations and Operator Theory, 2015.
  • A. Lindquist and G. Picci, Linear Stochastic Systems: A Geometric Approach to Modeling, Estimation and Identification, Series in Contemporary Mathematics, Vol.1, Springer Berlin Heidelberg, 2015.[23]


  1. ^ "W.T. and Idalia Reid Prize in Mathematics". Society for Industrial and Applied Mathematics. Retrieved January 30, 2012.
  2. ^ Video on YouTube
  3. ^
  4. ^ Rantzer, A.; Byrnes, C.I. (2003). Directions in Mathematical Systems Theory. Springer. ISBN 978-3-540-00065-5.
  5. ^ Xiaoming Hu; Ulf Jonsson; Bo Wahlberg; Bijoy Ghosh (2010). Three Decades of Progress in Control Sciences. Springer. pp. XIII. doi:10.1007/978-3-642-11278-2. ISBN 978-3-642-11278-2.
  6. ^ "Anders Lindquist - the Mathematics Genealogy Project".
  7. ^ "CIAM - Center for Industrial and Applied Mathematics".
  8. ^
  9. ^ [1]
  10. ^ "外籍院士名单与简介----中国科学院学部与院士". Archived from the original on 2017-04-13. Retrieved 2016-01-09.
  11. ^ "安德森·林奎斯特(Anders Lindquist)----中国科学院学部".
  12. ^ "Member of the Academia Europaea". Retrieved August 4, 2020.
  13. ^ "Archived copy". Archived from the original on 2010-06-03. Retrieved 2012-01-26.CS1 maint: archived copy as title (link)
  14. ^ "Fellow Class of 1989". Retrieved January 30, 2012.
  15. ^ "Fellows Program | SIAM".
  16. ^ "IFAC Fellows — IFAC · International Federation of Automatic Control".
  17. ^ "George S. Axelby Outstanding Paper Award | IEEE Control Systems Society".
  18. ^ "IEEE CSS | IEEE Control Systems Society".
  19. ^ "Archived copy". Archived from the original on 2010-05-30. Retrieved 2012-01-26.CS1 maint: archived copy as title (link)
  20. ^ "W. T. and Idalia Reid Prize".
  21. ^ "SIAM News". 2009. Archived from the original on 2014-07-07. Retrieved 2012-01-29.
  22. ^ Video on YouTube
  23. ^ Linear Stochastic Systems: A Geometric Approach to Modeling, Estimation and Identification. Series in Contemporary Mathematics. Springer. 2015. ISBN 9783662457498.

External links[edit]