Fradkov, Alexander Lvovich

He graduated from the Faculty of Mathematics and Mechanics of the Leningrad State University in the Department of Theoretical Cybernetics (1971).

In 1975, at the Leningrad Mechanical Institute, he defended his thesis on the topic “Adaptive management of linear systems”, in which the author initiated the “passification method”, which has found wide application in many problems of building nonlinear, adaptive and network control systems ^{[1] [2] [3] [4] [5]} . An important result of the thesis was the introduction of a new class of search-free self-adjusting systems ( BSNS ) - adaptive systems with an “ implicit model” that have several advantages compared to traditional BSNS with reference models ^{[6] [2] [3] [7] [8]} . In the same years, together with D. P. Derevitsky, he developed the “ continuous model method ” —a very effective approach to analyzing the dynamics of discrete time systems through their approximate description in continuous time (that is, in the form of differential equations) and shows its use for studies of digital adaptive systems and recurrent optimization algorithms ^{[9] [10] [11] [12] [13]} .

In 1986, A.L. Fradkov defended his doctoral thesis on the topic “Adaptive control of nonlinear systems” in St. Petersburg Electrotechnical University , in which he proposed and substantiated the “velocity gradient method” ^{[14] [3] [15]} - universal method of synthesis and research of various classes of nonlinear systems. Initially, this method was used by the author and his colleagues to develop algorithms for adaptive control, identification, and estimation. To date, the fundamental nature of the method in the form of the “speed gradient principle” has been demonstrated by a variety of effective applications, including for controlling oscillatory processes, network and distributed systems, communication systems, and also for physical and biological systems ^{[16] [17] [18 ] [19] [20] [21] [22] [23] [24] [25] [26] [27]} .

In the years 1972-1989. A. L. Fradkov’s scientific and pedagogical career developed at the Leningrad Mechanical Institute (now the Baltic State Technical University Voenmekh , where he has gone from a graduate student to a professor in the department of computer engineering. Since 1990, the main place of work of Alexander L. - Institute of problems of engineering science of the Russian Academy of Sciences, where he headed the laboratory “Management of complex systems" organized by him. AL Fradkov continued to combine his scientific work in the Academy of Sciences with teaching activities. In 2014, Aleksandr Lvovich headed the basic master's department at ITMO University , where he also runs the International Science Laboratory. Since 1997, he has been working at the Department of Theoretical Cybernetics at St. Petersburg State University , and since 2015 she has headed it. During his teaching career, AL Fradkov prepared three Doctors and over twenty PhDs, they have developed and delivered courses of lectures related to such relevant areas as the control of oscillations and chaos, the control of molecular and quantum systems, mathematical modeling of cybers pnetic systems

Alexander Lvovich Fradkov is one of the most prominent and internationally recognized representatives of the Russian theory of management. In recognition of his scientific achievements, Alexander Lvovich was awarded the title of Honored Worker ( Fellow ) of the International Institute of Electrical and Electronics Engineers IEEE (2014) and the International Federation of Automatic Control IFAC (2017) ^[28] . For a number of years A.L. Fradkov was a member of a number of IFAC technical committees and also the chairman of one of them ^[29] . He is the author and co-author of more than 700 scientific papers ^{[30] [31]} , including 12 monographs, eight textbooks, 10 copyright certificates and patents. He edited 19 monographs and collections, five special issues of international journals. A. L. Fradkov made many scientific reports at conferences; in 1991–2008, he lectured more than 70 research centers, including Massachusetts, Tokyo, and the Royal Swedish Institute of Technology, Australian National University, National University of Korea, Illinois Universities , Michigan, Bell Lab Research Centers, Fermilab, Institute of Computer Science and Automation (INRIA). A.L. Fradkov is the founding president of the International Society of Physics and Control ( IPACS ), a member of the European Management Association (EUCA), a member of the European Society of Mechanics (EUROMECH), a member of the IEEE editorial board on control systems. He is a member of a number of IFAC and IEEE technical committees, heads the editorial board of the international scientific journal Cybernetics and Physics, and is a member of the editorial boards of several other domestic and international journals.

The scientific work of A. L. Fradkov draws attention to himself by the variety of methods used and the organic combination of mathematical rigor with insight into practical problems. His scientific journey begins in the field of the theory of absolute stability, which is one of the most significant and well-known achievements of the Russian school of control theory. During 1975–1989, A.L. Fradkov was formed as one of the leading Russian experts in the field of adaptive management. The bright events that largely determined the face of Russian science in the field of adaptive management were a series of Leningrad symposia on the theory and use of adaptive systems in 1972–1999, thanks to the organizing energy of Alexander Lvovich. ^[32] , and on the other hand, the publication of the monographs “Adaptive management of dynamic objects” ^[2] (together with V. N. Fomin and V. A. Yakubovich ), “Applied theory of discrete adaptive control systems” ^[13] (together with D.P. Derevitsky), systematizing the original author's concepts and results into a holistic theory with an emphasis on practical applications. The books by A. L. Fradkov “Introduction to control of oscillations and chaos” ^[33] (jointly with A. Yu. Pogromsky), “Nonlinear and adaptive control of complex systems” ^[34] (together with And V. Miroshnik and V. O. Nikiforov) relate to the first in world practice experiments of monographic systematization of the achievement of the period of the 1990s in the mathematical theory of controlling oscillatory and chaotic systems. Review “Chaos Control: Methods and Applications” ^{[35] [36] was} awarded the prize of the International publishing company “Science / Interperiodica” for the best publication of 2004.

A. L. Fradkov was one of the first to grasp the need for thinking about new facts and tendencies in favor of the emergence of a new scientific field at the intersection of physics and control theory and which he called Cybernetic Physics . They have done impressive work on the conceptual design, development and advancement of cybernetic physics: a series of publications in prestigious journals, two monographs Cybernetic Physics ^[37] , Cybernetical Physics ^[38] were made, many reports were made, thanks to his energy several international thematic conferences organized by the international society of physics and control ( IPACS ), president-founder of which he is, as well as the international journal «Cybernetics and physics» , in which he is the main Edit th. Since 2003, IPACS has been holding regular Physics and Control conferences .

In the field of managing complex systems and networks, the spectrum of research of A. L. Fradkov extends from fundamental theoretical problems associated with networks of physical and biological oscillators and with issues important for theoretical physics and neurobiology to the practical aspects of functioning large-scale power grids. A. L. Fradkov wrote analytical reviews in the journal Automation and Remote Control, devoted to the development of a unified theory of information, control, and computation ^[39] and the control of network systems ^[40] . In 2015, under his editorship, one of the first in Russia collective monographs on network management was published ^[41] .

Under the leadership of A. L. Fradkov, such major international events as the Conference on the Control of Oscillations and Chaos , the IFAC Symposium on Nonlinear Control Systems , two conferences on physics and control , the European Conference on Nonlinear Dynamics , the IFAC Adaptation and Training conferences were organized and held. systems control and processing signals " and " Periodic control systems " , multiconference IEEE systems and control , IFAC conference on modeling, identification and control of nonlinear systems . In 1992 he initiated a series of Russian-Swedish management conferences; The result of his initiative and leadership (together with Professor Lennart Ljung) was a series of international Baltic Olympiads for automatic control students ( BOAC ), launched in 1991, which, in addition to the competitive program, provided the participants with the opportunity to contact leading scientists. In 1986, he initiated the tradition of city Olympiads in computer science for schoolchildren and attracted leading city scientists to their conduct; the winners of the Olympiads organized in this way repeatedly demonstrated outstanding success at the All-Russian and International Olympiads. Since 1989, work with schoolchildren has been carried out within the framework of the Informatics and Management complex, which was one of the first in the country and became the prototype of St. Petersburg’s educational and research complex created on the basis of the City Palace of Youth Creativity, St. Petersburg State University and other leading universities of the city. St. Petersburg Training and Research Center on the problems of mechanical engineering, mechanics and control processes . Alexander Lvovich repeatedly attracted world leading scientists to read current lectures to Russian students at various events. Since 1988, a permanent urban seminar on management theory has been held at IPMash RAS on the basis of the laboratory headed by him, which brings together leading specialists from St. Petersburg. A. L. Fradkov actively participated in the preparation and conduct of the Traditional All-Russian Youth Scientific Summer Schools “Management, Information and Optimization” as a member of the program committee of these schools, and in 2016 - as the chairman of the organizing committee.

For many years, Alexander Lvovich has been actively engaged in research and social work, since 1991 he has been the Vice-President of the St. Petersburg Society of Informatics, Computer Engineering, Communication and Control Systems , since 1999 he has been a member of the Russian National Automatic Control Committee , since 2005 President of the International Scientific Society "Physics and Management" ( IPACS ). He is one of the founders of the Society of Scientific Workers , an interregional public organization, of which he is a co-chairman of the Council. Alexander Lvovich - a member of the Presidium of the Higher Attestation Commission at the Ministry of Education and Science of the Russian Federation and the Council for Grants under the Government of the Russian Federation .

• V.N. Fomin, A.L. Fradkov, V.A. Yakubovich. Adaptive management of dynamic objects. Moscow: Science, 1981 ^[2]
• D.P. Derevitsky, A.L. Fradkov. Applied theory of discrete adaptive control systems. Moscow: Science, 1981 ^[13]
• A.L. Fradkov. Basics of mathematical modeling. Leningrad: LMI, 1989
• A.L. Fradkov. Adaptive management of complex systems. Moscow: Science, 1990 ^[3]
• AL Fradkov, A. Yu. Pogromsky. Control of oscillations and chaos. Singapore: World Scientific, 1998 ^[33]
• AL Fradkov, IV Miroshnik, VO Nikiforov. Nonlinear and adaptive control of complex systems. Dordrecht: Kluwer, 1999 ^[34]
• B. R. Andrievsky, A. L. Fradkov. Selected chapters of the theory of automatic control with examples in the MATLAB language. SPb .: Science, 1999 ^[7]
• I. V. Miroshnik, V. O. Nikiforov, A. L. Fradkov. Nonlinear and adaptive control of complex dynamic systems SPb .: Nauka, 2000 ^[4]
• B. R. Andrievsky, A. L. Fradkov. Elements of mathematical modeling in software environments MATLAB 5 and Scilab (tutorial). SPb .: Science, 2001
• B. R. Andrievsky, I. I. Blekhman, Yu. A. Bortsov, S. V. Gavrilov, V. A. Konoplev, B. P. Lavrov, N. D. Polyakhov, O. P. Tomchin, A. L. Fradkov, V. M. Shestakov. Control of mechatronic vibration systems. / ed. I. I. Blekhman and A. L. Fradkov St. Petersburg: Science, 2001
• A.L. Fradkov. Cybernetic physics: principles and examples. SPb .: Science, 2003 ^[37]
• AL Fradkov. Cybernetical Physics: From Control of Quantum Control. Springer-Verlag, Heidelberg-New York, 2007 ^[38]

• Fradkov Alexander Lvovich ( ITMO University site)
• Fradkov Alexander Lvovich ( St. Petersburg State University website)
• Publications in the newspaper " Troitsky Variant - Science "
• A. Kh. Gelig, D. A. Indeitsev and others. ALEXANDER LVOVICH FRADKOV (60th Anniversary) // Bulletin of the St. Petersburg University . Series 1. Mathematics. Mechanics. Astronomy. - 2008. - Vol. 3 - p . 148-149 . - ISSN 1025-3106 .