Edit Profile (opens in new tab) Karampetakis, Nicholas P. Co-Author Distance Author ID: karampetakis.nicholas-p Published as: Karampetakis, N. P.; Karampetakis, Nicholas P.; Karampetakis, Nicholas; Karampetakis, N.; Karampetakis, Nikolas P. more...less Homepage: http://anadrasis.web.auth.gr/new/karampetakhs%20page.htm External Links: MGP · ORCID Documents Indexed: 60 Publications since 1992 Reviewing Activity: 144 Reviews Co-Authors: 24 Co-Authors with 52 Joint Publications 327 Co-Co-Authors all top 5 Co-Authors 8 single-authored 17 Vardulakis, Antonis-Ioanis G. 13 Pugh, A. Clive 8 Antoniou, Efstathios N. 7 Hayton, Gaynor E. 6 Vologiannidis, Stavros 5 Moysis, Lazaros 4 Tzekis, Panagiotis 3 Jones, Jon 3 Kafetzis, Ioannis S. 3 Stanimirović, Predrag S. 3 Tasić, Milan B. 2 Pechlivanidou, Georgia G. 1 Evripidou, Alexandros 1 Gałkowski, Krzysztof 1 Gregoriadou, Anastasia 1 Hadjifotinou, Katerina G. 1 Karamichalis, Rallis 1 Karetsou, Aikaterini S. 1 Krtolica, Predrag V. 1 Mertzios, Basil G. 1 Pantelous, Athanasios A. 1 Terzidis, Haralambos K. 1 Tictopoulou, Evangelia 1 Varsamis, Dimitris N. all top 5 Serials 14 IMA Journal of Mathematical Control and Information 12 International Journal of Control 6 International Journal of Applied Mathematics and Computer Science 5 Multidimensional Systems and Signal Processing 4 Kybernetika 3 Circuits, Systems, and Signal Processing 3 Linear Algebra and its Applications 2 Applied Mathematics and Computation 2 IEEE Transactions on Automatic Control 1 Journal of the Franklin Institute 1 SIAM Journal on Control and Optimization 1 Journal of Symbolic Computation 1 International Journal of Robust and Nonlinear Control 1 Numerical Linear Algebra with Applications 1 Filomat 1 ELA. The Electronic Journal of Linear Algebra 1 Far East Journal of Mathematical Sciences 1 Journal of Applied Mathematics and Computing all top 5 Fields 46 Systems theory; control (93-XX) 17 Linear and multilinear algebra; matrix theory (15-XX) 14 Numerical analysis (65-XX) 6 Computer science (68-XX) 2 Ordinary differential equations (34-XX) 1 General and overarching topics; collections (00-XX) 1 Number theory (11-XX) 1 Difference and functional equations (39-XX) 1 Probability theory and stochastic processes (60-XX) 1 Mechanics of particles and systems (70-XX) 1 Information and communication theory, circuits (94-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 47 Publications have been cited 238 times in 105 Documents Cited by ▼ Year ▼ Computation of the generalized inverse of a polynomial matrix and applications. Zbl 0869.65028 Karampetakis, N. P. 29 1997 The computation and application of the generalized inverse via Maple. Zbl 0894.68088 Jones, Jon; Karampetakis, N. P.; Pugh, A. C. 26 1998 Generalized inverses of two-variable polynomial matrices and applications. Zbl 0882.93039 Karampetakis, N. P. 21 1997 On the computation of the generalized inverse of a polynomial matrix. Zbl 0987.93023 Karampetakis, N. P.; Tzekis, P. 20 2001 DFT calculation of the generalized and Drazin inverse of a polynomial matrix. Zbl 1025.65025 Karampetakis, N. P.; Vologiannidis, S. 13 2003 Inverses of multivariable polynomial matrices by discrete Fourier transforms. Zbl 1061.93039 Vologiannidis, S.; Karampetakis, N. 11 2004 On the solution and impulsive behaviour of polynomial matrix descriptions of free linear multivariable systems. Zbl 1001.93039 Vardulakis, A. I. G.; Antoniou, E. N.; Karampetakis, N. 7 1999 Infinite elementary divisor structure-preserving transformations for polynomial matrices. Zbl 1115.93019 Karampetakis, Nicholas P.; Vologiannidis, Stavros 7 2003 A fundamental notion of equivalence for linear multivariable systems. Zbl 0814.93024 Pugh, A. C.; Karampetakis, N. P.; Vardulakis, A. I. G.; Hayton, G. E. 6 1994 Closed form solution for the equations of motion for constrained linear mechanical systems and generalizations: an algebraic approach. Zbl 1355.93086 Moysis, Lazaros; Pantelous, Athanasios A.; Antoniou, Efstathios; Karampetakis, Nicholas P. 6 2017 On the solution space of discrete time AR-representations over a finite time horizon. Zbl 1175.15017 Karampetakis, N. P. 5 2004 On the discretization of singular systems. Zbl 1059.93082 Karampetakis, N. P. 5 2004 A new notion of equivalence for discrete time AR representations. Zbl 1059.93027 Karampetakis, N. P.; Vologiannidis, S.; Vardulakis, A. I. G. 5 2004 A spectral characterization of the behavior of discrete time AR-representations over a finite time interval. Zbl 1274.93174 Antoniou, E. N.; Vardulakis, A. I. G.; Karampetakis, N. P. 5 1998 On the Newton bivariate polynomial interpolation with applications. Zbl 1292.65008 Varsamis, Dimitris N.; Karampetakis, Nicholas P. 5 2014 Forward, backward, and symmetric solutions of discrete ARMA representations. Zbl 0997.93089 Karampetakis, N. P.; Jones, J.; Antoniou, E. N. 4 2001 Equivalence transformations of rational matrices and applications. Zbl 0813.93021 Karampetakis, N. P.; Pugh, A. C.; Vardulakis, A. I. 4 1994 Generalized state-space system matrix equivalents of a Rosenbrock system matrix. Zbl 0807.93009 Karampetakis, N. P.; Vardulakis, A. I. 4 1993 Equivalence of AR-representations in the light of the impulsive-smooth behaviour. Zbl 1266.93027 Pugh, A. C.; Antoniou, E. N.; Karampetakis, N. P. 4 2007 On the computation of the minimal polynomial of a polynomial matrix. Zbl 1169.15300 Karampetakis, N.; Tzekis, P. 3 2005 Matrix fractions and full system equivalence. Zbl 0777.93052 Karampetakis, N. P.; Vardulakis, A. I. 3 1992 A classification of generalised state space reduction methods for linear multivariable systems. Zbl 0859.93024 Karampetakis, N. P.; Vardulakis, A. I.; Pugh, A. C. 3 1995 Computation of the transfer function matrix and its Laurent expansion of generalized two-dimensional systems. Zbl 0810.93029 Karampetakis, N. P.; Mertzios, B. G.; Vardulakis, A. I. G. 3 1994 Discretization of singular systems and error estimation. Zbl 1292.93068 Karampetakis, Nicholas P.; Karamichalis, Rallis 3 2014 Solution of discrete ARMA-representations via MAPLE. Zbl 1028.65151 Jones, J.; Karampetakis, N. P.; Pugh, A. C. 3 2003 Polynomial matrix equivalences: system transformations and structural invariants. Zbl 1475.93032 Vologiannidis, S.; Antoniou, E. N.; Karampetakis, N. P.; Vardulakis, A. I. G. 3 2021 On the computation of the GCD of 2-D polynomials. Zbl 1229.68086 Tzekis, Panagiotis; Karampetakis, Nicholas P.; Terzidis, Haralambos K. 2 2007 The output zeroing problem for general polynomial matrix descriptions. Zbl 0952.93017 Karampetakis, N. P.; Pugh, A. C.; Hayton, G. E. 2 1998 An extension of Wolovich’s definition of equivalence of linear systems. Zbl 0853.93050 Karampetakis, N. P.; Pugh, A. C.; Vardulakis, A. I.; Hayton, G. E. 2 1996 Special issue on the use of computer algebra systems for computer aided control system design. Zbl 1133.93301 Karampetakis, N. P.; Vardulakis, A. I. G. 2 2006 Solvability, reachability, controllability and observability of regular PMDs. Zbl 0930.93046 Mahmood, S.; Karampetakis, N. P.; Pugh, A. C. 2 1998 On the fundamental matrix of the inverse of a polynomial matrix and applications to ARMA representations. Zbl 1183.65043 Karampetakis, N. P.; Vologiannidis, S. 2 2009 Construction of algebraic-differential equations with given smooth and impulsive behaviour. Zbl 1308.93064 Karampetakis, Nicholas P. 2 2015 Reachability and controllability of discrete-time descriptor systems. Zbl 1317.93042 Karampetakis, Nicholas P.; Gregoriadou, Anastasia 2 2014 Observability of linear discrete-time systems of algebraic and difference equations. Zbl 1414.93043 Moysis, Lazaros; Karampetakis, Nicholas; Antoniou, Efstathios 2 2019 On the computation of the Drazin inverse of a polynomial matrix. Zbl 1136.68627 Karampetakis, N. P.; Stanimirović, Predag S.; Tasić, Milan B. 1 2007 Generalized inversion by interpolation. Zbl 1142.65040 Stanimirović, Predrag S.; Tasić, Milan B.; Krtolica, Predrag V.; Karampetakis, Nikolas P. 1 2007 On the division of polynomial matrices. Zbl 0947.93024 Tzekis, P.; Karampetakis, N. P.; Vardulakis, A. I. 1 1999 Computing generalized inverses of a rational matrix and applications. Zbl 1129.65026 Stanimirović, Predrag S.; Karampetakis, N. P.; Tasić, Milan B. 1 2007 On the realization theory of polynomial matrices and the algebraic structure of pure generalized state space systems. Zbl 1169.93009 Vardulakis, Antonis-Ioanis G.; Karampetakis, Nicholas P.; Antoniou, Efstathios N.; Tictopoulou, Evangelia 1 2009 Descriptor realizations of autoregressive representations. Zbl 1060.93027 Karampetakis, N. P. 1 2004 On a certain McMillan-degree condition appearing in control. Zbl 0807.93010 Pugh, A. C.; Karampetakis, N. P.; Hayton, G. E.; Vardulakis, A. I. 1 1993 Construction of algebraic and difference equations with a prescribed solution space. Zbl 1367.93341 Moysis, Lazaros; Karampetakis, Nicholas P. 1 2017 Reachability of discrete time ARMA representations. Zbl 1475.93007 Moysis, Lazaros; Karampetakis, Nicholas P. 1 2021 On conditions guaranteeing two rational matrices possess identical pole/zero structure. Zbl 1480.93169 Kafetzis, I. S.; Karampetakis, N. P. 1 2021 An algorithm for two-variable rational interpolation suitable for matrix manipulations with the evaluation-interpolation method. Zbl 07478610 Hadjifotinou, Katerina G.; Karampetakis, Nicholas P. 1 2021 On the computation of the inverse of a two-variable polynomial matrix by interpolation. Zbl 1255.93052 Karampetakis, Nicholas P.; Evripidou, Alexandros 1 2012 Polynomial matrix equivalences: system transformations and structural invariants. Zbl 1475.93032 Vologiannidis, S.; Antoniou, E. N.; Karampetakis, N. P.; Vardulakis, A. I. G. 3 2021 Reachability of discrete time ARMA representations. Zbl 1475.93007 Moysis, Lazaros; Karampetakis, Nicholas P. 1 2021 On conditions guaranteeing two rational matrices possess identical pole/zero structure. Zbl 1480.93169 Kafetzis, I. S.; Karampetakis, N. P. 1 2021 An algorithm for two-variable rational interpolation suitable for matrix manipulations with the evaluation-interpolation method. Zbl 07478610 Hadjifotinou, Katerina G.; Karampetakis, Nicholas P. 1 2021 Observability of linear discrete-time systems of algebraic and difference equations. Zbl 1414.93043 Moysis, Lazaros; Karampetakis, Nicholas; Antoniou, Efstathios 2 2019 Closed form solution for the equations of motion for constrained linear mechanical systems and generalizations: an algebraic approach. Zbl 1355.93086 Moysis, Lazaros; Pantelous, Athanasios A.; Antoniou, Efstathios; Karampetakis, Nicholas P. 6 2017 Construction of algebraic and difference equations with a prescribed solution space. Zbl 1367.93341 Moysis, Lazaros; Karampetakis, Nicholas P. 1 2017 Construction of algebraic-differential equations with given smooth and impulsive behaviour. Zbl 1308.93064 Karampetakis, Nicholas P. 2 2015 On the Newton bivariate polynomial interpolation with applications. Zbl 1292.65008 Varsamis, Dimitris N.; Karampetakis, Nicholas P. 5 2014 Discretization of singular systems and error estimation. Zbl 1292.93068 Karampetakis, Nicholas P.; Karamichalis, Rallis 3 2014 Reachability and controllability of discrete-time descriptor systems. Zbl 1317.93042 Karampetakis, Nicholas P.; Gregoriadou, Anastasia 2 2014 On the computation of the inverse of a two-variable polynomial matrix by interpolation. Zbl 1255.93052 Karampetakis, Nicholas P.; Evripidou, Alexandros 1 2012 On the fundamental matrix of the inverse of a polynomial matrix and applications to ARMA representations. Zbl 1183.65043 Karampetakis, N. P.; Vologiannidis, S. 2 2009 On the realization theory of polynomial matrices and the algebraic structure of pure generalized state space systems. Zbl 1169.93009 Vardulakis, Antonis-Ioanis G.; Karampetakis, Nicholas P.; Antoniou, Efstathios N.; Tictopoulou, Evangelia 1 2009 Equivalence of AR-representations in the light of the impulsive-smooth behaviour. Zbl 1266.93027 Pugh, A. C.; Antoniou, E. N.; Karampetakis, N. P. 4 2007 On the computation of the GCD of 2-D polynomials. Zbl 1229.68086 Tzekis, Panagiotis; Karampetakis, Nicholas P.; Terzidis, Haralambos K. 2 2007 On the computation of the Drazin inverse of a polynomial matrix. Zbl 1136.68627 Karampetakis, N. P.; Stanimirović, Predag S.; Tasić, Milan B. 1 2007 Generalized inversion by interpolation. Zbl 1142.65040 Stanimirović, Predrag S.; Tasić, Milan B.; Krtolica, Predrag V.; Karampetakis, Nikolas P. 1 2007 Computing generalized inverses of a rational matrix and applications. Zbl 1129.65026 Stanimirović, Predrag S.; Karampetakis, N. P.; Tasić, Milan B. 1 2007 Special issue on the use of computer algebra systems for computer aided control system design. Zbl 1133.93301 Karampetakis, N. P.; Vardulakis, A. I. G. 2 2006 On the computation of the minimal polynomial of a polynomial matrix. Zbl 1169.15300 Karampetakis, N.; Tzekis, P. 3 2005 Inverses of multivariable polynomial matrices by discrete Fourier transforms. Zbl 1061.93039 Vologiannidis, S.; Karampetakis, N. 11 2004 On the solution space of discrete time AR-representations over a finite time horizon. Zbl 1175.15017 Karampetakis, N. P. 5 2004 On the discretization of singular systems. Zbl 1059.93082 Karampetakis, N. P. 5 2004 A new notion of equivalence for discrete time AR representations. Zbl 1059.93027 Karampetakis, N. P.; Vologiannidis, S.; Vardulakis, A. I. G. 5 2004 Descriptor realizations of autoregressive representations. Zbl 1060.93027 Karampetakis, N. P. 1 2004 DFT calculation of the generalized and Drazin inverse of a polynomial matrix. Zbl 1025.65025 Karampetakis, N. P.; Vologiannidis, S. 13 2003 Infinite elementary divisor structure-preserving transformations for polynomial matrices. Zbl 1115.93019 Karampetakis, Nicholas P.; Vologiannidis, Stavros 7 2003 Solution of discrete ARMA-representations via MAPLE. Zbl 1028.65151 Jones, J.; Karampetakis, N. P.; Pugh, A. C. 3 2003 On the computation of the generalized inverse of a polynomial matrix. Zbl 0987.93023 Karampetakis, N. P.; Tzekis, P. 20 2001 Forward, backward, and symmetric solutions of discrete ARMA representations. Zbl 0997.93089 Karampetakis, N. P.; Jones, J.; Antoniou, E. N. 4 2001 On the solution and impulsive behaviour of polynomial matrix descriptions of free linear multivariable systems. Zbl 1001.93039 Vardulakis, A. I. G.; Antoniou, E. N.; Karampetakis, N. 7 1999 On the division of polynomial matrices. Zbl 0947.93024 Tzekis, P.; Karampetakis, N. P.; Vardulakis, A. I. 1 1999 The computation and application of the generalized inverse via Maple. Zbl 0894.68088 Jones, Jon; Karampetakis, N. P.; Pugh, A. C. 26 1998 A spectral characterization of the behavior of discrete time AR-representations over a finite time interval. Zbl 1274.93174 Antoniou, E. N.; Vardulakis, A. I. G.; Karampetakis, N. P. 5 1998 The output zeroing problem for general polynomial matrix descriptions. Zbl 0952.93017 Karampetakis, N. P.; Pugh, A. C.; Hayton, G. E. 2 1998 Solvability, reachability, controllability and observability of regular PMDs. Zbl 0930.93046 Mahmood, S.; Karampetakis, N. P.; Pugh, A. C. 2 1998 Computation of the generalized inverse of a polynomial matrix and applications. Zbl 0869.65028 Karampetakis, N. P. 29 1997 Generalized inverses of two-variable polynomial matrices and applications. Zbl 0882.93039 Karampetakis, N. P. 21 1997 An extension of Wolovich’s definition of equivalence of linear systems. Zbl 0853.93050 Karampetakis, N. P.; Pugh, A. C.; Vardulakis, A. I.; Hayton, G. E. 2 1996 A classification of generalised state space reduction methods for linear multivariable systems. Zbl 0859.93024 Karampetakis, N. P.; Vardulakis, A. I.; Pugh, A. C. 3 1995 A fundamental notion of equivalence for linear multivariable systems. Zbl 0814.93024 Pugh, A. C.; Karampetakis, N. P.; Vardulakis, A. I. G.; Hayton, G. E. 6 1994 Equivalence transformations of rational matrices and applications. Zbl 0813.93021 Karampetakis, N. P.; Pugh, A. C.; Vardulakis, A. I. 4 1994 Computation of the transfer function matrix and its Laurent expansion of generalized two-dimensional systems. Zbl 0810.93029 Karampetakis, N. P.; Mertzios, B. G.; Vardulakis, A. I. G. 3 1994 Generalized state-space system matrix equivalents of a Rosenbrock system matrix. Zbl 0807.93009 Karampetakis, N. P.; Vardulakis, A. I. 4 1993 On a certain McMillan-degree condition appearing in control. Zbl 0807.93010 Pugh, A. C.; Karampetakis, N. P.; Hayton, G. E.; Vardulakis, A. I. 1 1993 Matrix fractions and full system equivalence. Zbl 0777.93052 Karampetakis, N. P.; Vardulakis, A. I. 3 1992 all cited Publications top 5 cited Publications all top 5 Cited by 161 Authors 25 Karampetakis, Nicholas P. 18 Stanimirović, Predrag S. 11 Tasić, Milan B. 6 Petković, Marko D. 5 Antoniou, Efstathios N. 5 Moysis, Lazaros 4 Lomadze, Vakhtang 4 Marcaida, Silvia 4 Pantelous, Athanasios A. 4 Pugh, A. Clive 4 Stanimirović, Ivan P. 4 Vardulakis, Antonis-Ioanis G. 4 Vologiannidis, Stavros 3 Amparan, Agurtzane 3 Dopico, Froilán M. 3 Pappas, Dimitrios 3 Sendra, Juan Rafael 3 Sendra, Juana 3 Zaballa, Ion 2 Ćirić, Miroslav D. 2 Duan, Guangren 2 Gupta, Mahendra Kumar 2 Hayton, Gaynor E. 2 Hunek, Wojciech Przemysław 2 Jones, Jon 2 Katsikis, Vasilios N. 2 Kougioumtzoglou, Ioannis A. 2 Lastra, Alberto 2 Mackey, D. Steven 2 Mahmood, Hasan 2 Mishra, Vikas Kumar 2 Pirrotta, Antonina 2 Wei, Yimin 2 Zhou, Bin 1 Abdel-Ghaffar, Khaled A. S. 1 Abid, Muhammad 1 Aizawa, Akiko N. 1 Akram, Muhammad Saeed 1 Aldhafeeri, Nahier 1 Andrianova, Olga G. 1 Anguas, Luis Miguel 1 Antoniou, George E. 1 Aston, Elizabeth 1 Aston, John A. D. 1 Belavkin, Roman V. 1 Belov, Alexey A. 1 Belur, Madhu N. 1 Bernstein, Dennis S. 1 Bilgici, Göksal 1 Bu, Fanbin 1 Channon, Alastair 1 Chen, Yunkun 1 Darouach, Mohamed 1 Dassios, Ioannis K. 1 de Terán, Fernando 1 Dong, Tian 1 Evripidou, Alexandros 1 Fuhrmann, Paul A. 1 Gałkowski, Krzysztof 1 Gao, Feng 1 Gipp, Bela 1 Gregoriadou, Anastasia 1 Greiner-Petter, André 1 Güyer, Tolga 1 Hamidoglu, Ali 1 Helmke, Uwe R. 1 Hollister, Richard 1 Hori, Noriyuki 1 Huang, Liji 1 Huang, Rong 1 Huang, Wenqian 1 Islam, Syed Aseem Ul 1 Ji, Jun 1 Ji, Youzhou 1 Jiang, Bin 1 Kafetzis, Ioannis S. 1 Kalogeropoulos, Grigoris I. 1 Karageorgos, Athanasios D. 1 Karamichalis, Rallis 1 Karetsou, Aikaterini S. 1 Kawai, Shin 1 Khan, Abdul Qayyum 1 Kıymaz, Onur 1 Knight, Christopher G. 1 Kolundžija, Dejan 1 Krašovec, Rok 1 Latawiec, Krzysztof J. 1 Lei, Na 1 Li, Dongmei 1 Li, Yongshu 1 Liang, Shan 1 Liu, Dandan 1 Liu, Gongtian 1 Liu, Jianzhou 1 Liu, Jinwang 1 Liu, Longwen 1 Lu, Dong 1 Ma, Jichao 1 Ma, Jie 1 Mahmudov, Elimhan Nadir ...and 61 more Authors all top 5 Cited in 33 Serials 23 Applied Mathematics and Computation 14 Linear Algebra and its Applications 10 International Journal of Control 5 International Journal of Applied Mathematics and Computer Science 4 Circuits, Systems, and Signal Processing 4 Multidimensional Systems and Signal Processing 4 Journal of Systems Science and Complexity 3 Journal of the Franklin Institute 3 Kybernetika 3 MCSS. Mathematics of Control, Signals, and Systems 3 Numerical Algorithms 3 Journal of Applied Mathematics and Computing 2 Linear and Multilinear Algebra 2 Automatica 2 International Journal of Computer Mathematics 1 Computers & Mathematics with Applications 1 Journal of Mathematical Biology 1 Czechoslovak Mathematical Journal 1 Meccanica 1 Journal of Symbolic Computation 1 Applied Mathematics Letters 1 SIAM Journal on Matrix Analysis and Applications 1 Applied Mathematical Modelling 1 SIAM Review 1 International Journal of Robust and Nonlinear Control 1 Computational and Applied Mathematics 1 ELA. The Electronic Journal of Linear Algebra 1 Mathematical Problems in Engineering 1 European Journal of Control 1 Fractional Calculus & Applied Analysis 1 Advances in Decision Sciences 1 International Journal of Systems Science. Principles and Applications of Systems and Integration 1 Russian Journal of Nonlinear Dynamics all top 5 Cited in 28 Fields 48 Systems theory; control (93-XX) 44 Numerical analysis (65-XX) 43 Linear and multilinear algebra; matrix theory (15-XX) 19 Computer science (68-XX) 4 Ordinary differential equations (34-XX) 3 Number theory (11-XX) 3 Approximations and expansions (41-XX) 2 Real functions (26-XX) 2 Functions of a complex variable (30-XX) 2 Mechanics of particles and systems (70-XX) 2 Mechanics of deformable solids (74-XX) 2 Information and communication theory, circuits (94-XX) 1 General and overarching topics; collections (00-XX) 1 Field theory and polynomials (12-XX) 1 Commutative algebra (13-XX) 1 Algebraic geometry (14-XX) 1 Associative rings and algebras (16-XX) 1 Partial differential equations (35-XX) 1 Dynamical systems and ergodic theory (37-XX) 1 Difference and functional equations (39-XX) 1 Integral transforms, operational calculus (44-XX) 1 Functional analysis (46-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 Probability theory and stochastic processes (60-XX) 1 Statistics (62-XX) 1 Optics, electromagnetic theory (78-XX) 1 Operations research, mathematical programming (90-XX) 1 Biology and other natural sciences (92-XX) Citations by Year