Edit Profile (opens in new tab) Viaro, Umberto Compute Distance To: Compute Author ID: viaro.umberto Published as: Viaro, Umberto; Viaro, U. Documents Indexed: 75 Publications since 1980 Co-Authors: 19 Co-Authors with 75 Joint Publications 187 Co-Co-Authors all top 5 Co-Authors 0 single-authored 56 Lepschy, Antonio 27 Krajewski, Wiesław 22 Mian, Gian Antonio 8 Blanchini, Franco 8 Casagrande, Daniele 6 Ferrante, Augusto 6 Miani, Stefano 3 Beghi, Alessandro 3 Giordano, Giulia 2 Cobelli, Claudio 2 Monti, Carlo M. 2 Romanin-Jacur, Giorgio 1 De Poli, G. 1 Jacur, G. Romanin 1 Pierobon, Gianfranco L. 1 Redivo-Zaglia, Michela 1 Tomasini, Matteo 1 Tubiana, Luca 1 Zigliotto, Mauro all top 5 Serials 12 Journal of the Franklin Institute 10 IEEE Transactions on Automatic Control 6 International Journal of Systems Science 5 Atti dell’Istituto Veneto di Scienze, Lettere ed Arti. Classe di Scienze Fisiche, Matematiche e Naturali 4 Control and Cybernetics 3 International Journal of Control 3 Circuits, Systems, and Signal Processing 3 Archives of Control Sciences 2 Automatica 2 Systems & Control Letters 2 Numerical Algorithms 2 Italian Journal of Pure and Applied Mathematics 1 Applied Mathematics and Computation 1 IEEE Transactions on Circuits and Systems 1 Kybernetika 1 Ricerche di Automatica 1 IEEE Transactions on Signal Processing 1 Systems Science 1 International Journal of Robust and Nonlinear Control 1 Journal of Mathematical Systems, Estimation, and Control 1 Nonlinear Analysis. Hybrid Systems 1 Asian Journal of Control 1 International Journal of Systems Science. Principles and Applications of Systems and Integration 1 IEEE Control Systems all top 5 Fields 64 Systems theory; control (93-XX) 10 Approximations and expansions (41-XX) 9 Computer science (68-XX) 5 Functions of a complex variable (30-XX) 5 Numerical analysis (65-XX) 3 Combinatorics (05-XX) 2 Real functions (26-XX) 2 Ordinary differential equations (34-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Operations research, mathematical programming (90-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 2 Information and communication theory, circuits (94-XX) 1 General and overarching topics; collections (00-XX) 1 Special functions (33-XX) 1 Difference and functional equations (39-XX) 1 Optics, electromagnetic theory (78-XX) 1 Geophysics (86-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 39 Publications have been cited 139 times in 104 Documents Cited by ▼ Year ▼ Stable LPV realization of parametric transfer functions and its application to gain-scheduling control design. Zbl 1368.93528Blanchini, Franco; Casagrande, Daniele; Miani, Stefano; Viaro, Umberto 13 2010 A method for the integer-order approximation of fractional-order systems. Zbl 1293.93293Krajewski, W.; Viaro, U. 9 2014 Characterization of PID and lead/lag compensators satisfying given \(\mathcal H_{\infty}\) specifications. Zbl 1365.93169Blanchini, Franco; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto 9 2004 An improvement in the Routh-Padé approximation techniques. Zbl 0511.93044Lepschy, Antonio; Viaro, Umberto 8 1982 A stability test for continuous systems. Zbl 0633.93059Lepschy, A.; Mian, G. A.; Viaro, U. 7 1988 Symbolic expression of transfer functions in compartmental systems with control. Zbl 0591.93024Cobelli, C.; Lepschy, A.; Romanin Jacur, G.; Viaro, U. 6 1986 Convergent algorithm for \(L_2\) model reduction. Zbl 0930.93013Ferrante, Augusto; Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto 6 1999 Locating the equilibrium points of a predator-prey model by means of affine state feedback. Zbl 1167.49035Krajewski, Wieslaw; Viaro, Umberto 6 2008 On model reduction by \(L_ 2\)-optimal pole retention. Zbl 0695.93036Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 5 1990 A unifying frame for stability-test algorithms for continuous-time systems. Zbl 0708.93060Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 5 1990 Robust constrained model predictive control of fast electromechanical systems. Zbl 1347.93100Blanchini, Franco; Casagrande, Daniele; Giordano, Giulia; Viaro, Umberto 5 2016 System approximation by matching the impulse response energies. Zbl 0628.93039Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 4 1988 Some considerations on non-minimality, ill-conditioning, and instability of Padé approximants. Zbl 0508.93010Lepschy, Antonio; Viaro, Umberto 4 1983 A simple proof of the Routh test. Zbl 0955.93048Ferrante, A.; Lepschy, A.; Viaro, U. 4 1999 A program for solving the \(L_ 2\) reduced-order model problem with fixed denominator degree. Zbl 0830.65066Krajewski, W.; Lepschy, A.; Redivo-Zaglia, M.; Viaro, U. 4 1995 Reduction of linear continuous-time multivariable systems by matching first- and second-order information. Zbl 0925.93314Krajewski, Wieslaw; Lepschy, Antonio; Viaro, Umberto 3 1994 Optimality conditions in multivariable \(L_ 2\) model reduction. Zbl 0812.93019Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 3 1993 Fractional order PI controllers for TCP packet flow ensuring given modulus margins. Zbl 1331.93047Krajewski, Wiesław; Viaro, Umberto 3 2014 A geometrical interpretation of the Routh test. Zbl 0671.93049Lepschy, A.; Mian, G. A.; Viaro, U. 3 1988 Splitting of some s-domain stability-test algorithms. Zbl 0694.93087Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 3 1989 Model reduction by matching Markov parameters, time moments, and impulse- response energies. Zbl 0825.93092Krajewski, W.; Lepschy, A.; Viaro, U. 3 1995 Root-locus invariance: exploiting alternative arrival and departure points. Zbl 1395.93464Krajewski, Wieslaw; Viaro, Umberto 2 2007 Model reduction using the output equation error. Zbl 0546.93044Lepschy, Antonio; Viaro, Umberto 2 1984 Derivation of recursive stability-test procedures. Zbl 0825.93261Lepschy, A.; Viaro, U. 2 1994 A note on the model reduction problem. Zbl 0509.93028Lepschy, Antonio; Viaro, Umberto 2 1983 Common setting for some classical z-domain algorithms in linear system theory. Zbl 0698.93068Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 2 1990 Frequency-domain approach to robust PI control. Zbl 1124.93024Krajewski, Wieslaw; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto 2 2005 Iterative-interpolation algorithms for \(L_2\) model reduction. Zbl 1301.93039Krajewski, Wiesław; Viaro, Umberto 2 2009 Stable LPV realisation of the Smith predictor. Zbl 1345.93054Blanchini, Franco; Casagrande, Daniele; Miani, Stefano; Viaro, Umberto 2 2016 Efficient split algorithms for continuous-time and discrete-time systems. Zbl 0725.93058Lepschy, A.; Mian, G. A.; Viaro, U. 1 1991 Global asymptotic stability of digital filters with roundoff nonlinearities. Zbl 0598.93048Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 1 1986 Stability preservation and computational aspects of a newly proposed reduction method. Zbl 0643.93058Lepschy, Antonio; Mian, Gian A; Viaro, Umberto 1 1988 Some problems in model order reduction using frequency-domain methods. Zbl 0534.93009Lepschy, Antonio; Viaro, Umberto 1 1984 Model reduction for control systems with restricted complexity controllers. Zbl 0572.93029Lepschy, A.; Viaro, U. 1 1985 Synthesis of spectral densities using finite automata. Zbl 0775.68016Monti, Carlo M.; Pierobon, Gianfranco L.; Viaro, Umberto 1 1993 On the mechanism of recursive stability-test algorithms. Zbl 0781.93067Lepschy, Antonio; Viaro, Umberto 1 1993 A minimum-time control strategy for torque tracking in permanent magnet AC motor drives. Zbl 1110.93022Blanchini, Franco; Miani, Stefano; Tomasini, Matteo; Tubiana, Luca; Viaro, Umberto; Zigliotto, Mauro 1 2007 Euclid-type algorithm and its applications. Zbl 0669.65036Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 1 1989 The Lepschy stability test and its application to fractional-order systems. Zbl 1467.93236Casagrande, Daniele; Krajewski, Wiesław; Viaro, Umberto 1 2021 The Lepschy stability test and its application to fractional-order systems. Zbl 1467.93236Casagrande, Daniele; Krajewski, Wiesław; Viaro, Umberto 1 2021 Robust constrained model predictive control of fast electromechanical systems. Zbl 1347.93100Blanchini, Franco; Casagrande, Daniele; Giordano, Giulia; Viaro, Umberto 5 2016 Stable LPV realisation of the Smith predictor. Zbl 1345.93054Blanchini, Franco; Casagrande, Daniele; Miani, Stefano; Viaro, Umberto 2 2016 A method for the integer-order approximation of fractional-order systems. Zbl 1293.93293Krajewski, W.; Viaro, U. 9 2014 Fractional order PI controllers for TCP packet flow ensuring given modulus margins. Zbl 1331.93047Krajewski, Wiesław; Viaro, Umberto 3 2014 Stable LPV realization of parametric transfer functions and its application to gain-scheduling control design. Zbl 1368.93528Blanchini, Franco; Casagrande, Daniele; Miani, Stefano; Viaro, Umberto 13 2010 Iterative-interpolation algorithms for \(L_2\) model reduction. Zbl 1301.93039Krajewski, Wiesław; Viaro, Umberto 2 2009 Locating the equilibrium points of a predator-prey model by means of affine state feedback. Zbl 1167.49035Krajewski, Wieslaw; Viaro, Umberto 6 2008 Root-locus invariance: exploiting alternative arrival and departure points. Zbl 1395.93464Krajewski, Wieslaw; Viaro, Umberto 2 2007 A minimum-time control strategy for torque tracking in permanent magnet AC motor drives. Zbl 1110.93022Blanchini, Franco; Miani, Stefano; Tomasini, Matteo; Tubiana, Luca; Viaro, Umberto; Zigliotto, Mauro 1 2007 Frequency-domain approach to robust PI control. Zbl 1124.93024Krajewski, Wieslaw; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto 2 2005 Characterization of PID and lead/lag compensators satisfying given \(\mathcal H_{\infty}\) specifications. Zbl 1365.93169Blanchini, Franco; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto 9 2004 Convergent algorithm for \(L_2\) model reduction. Zbl 0930.93013Ferrante, Augusto; Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto 6 1999 A simple proof of the Routh test. Zbl 0955.93048Ferrante, A.; Lepschy, A.; Viaro, U. 4 1999 A program for solving the \(L_ 2\) reduced-order model problem with fixed denominator degree. Zbl 0830.65066Krajewski, W.; Lepschy, A.; Redivo-Zaglia, M.; Viaro, U. 4 1995 Model reduction by matching Markov parameters, time moments, and impulse- response energies. Zbl 0825.93092Krajewski, W.; Lepschy, A.; Viaro, U. 3 1995 Reduction of linear continuous-time multivariable systems by matching first- and second-order information. Zbl 0925.93314Krajewski, Wieslaw; Lepschy, Antonio; Viaro, Umberto 3 1994 Derivation of recursive stability-test procedures. Zbl 0825.93261Lepschy, A.; Viaro, U. 2 1994 Optimality conditions in multivariable \(L_ 2\) model reduction. Zbl 0812.93019Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 3 1993 Synthesis of spectral densities using finite automata. Zbl 0775.68016Monti, Carlo M.; Pierobon, Gianfranco L.; Viaro, Umberto 1 1993 On the mechanism of recursive stability-test algorithms. Zbl 0781.93067Lepschy, Antonio; Viaro, Umberto 1 1993 Efficient split algorithms for continuous-time and discrete-time systems. Zbl 0725.93058Lepschy, A.; Mian, G. A.; Viaro, U. 1 1991 On model reduction by \(L_ 2\)-optimal pole retention. Zbl 0695.93036Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 5 1990 A unifying frame for stability-test algorithms for continuous-time systems. Zbl 0708.93060Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. 5 1990 Common setting for some classical z-domain algorithms in linear system theory. Zbl 0698.93068Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 2 1990 Splitting of some s-domain stability-test algorithms. Zbl 0694.93087Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 3 1989 Euclid-type algorithm and its applications. Zbl 0669.65036Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 1 1989 A stability test for continuous systems. Zbl 0633.93059Lepschy, A.; Mian, G. A.; Viaro, U. 7 1988 System approximation by matching the impulse response energies. Zbl 0628.93039Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 4 1988 A geometrical interpretation of the Routh test. Zbl 0671.93049Lepschy, A.; Mian, G. A.; Viaro, U. 3 1988 Stability preservation and computational aspects of a newly proposed reduction method. Zbl 0643.93058Lepschy, Antonio; Mian, Gian A; Viaro, Umberto 1 1988 Symbolic expression of transfer functions in compartmental systems with control. Zbl 0591.93024Cobelli, C.; Lepschy, A.; Romanin Jacur, G.; Viaro, U. 6 1986 Global asymptotic stability of digital filters with roundoff nonlinearities. Zbl 0598.93048Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto 1 1986 Model reduction for control systems with restricted complexity controllers. Zbl 0572.93029Lepschy, A.; Viaro, U. 1 1985 Model reduction using the output equation error. Zbl 0546.93044Lepschy, Antonio; Viaro, Umberto 2 1984 Some problems in model order reduction using frequency-domain methods. Zbl 0534.93009Lepschy, Antonio; Viaro, Umberto 1 1984 Some considerations on non-minimality, ill-conditioning, and instability of Padé approximants. Zbl 0508.93010Lepschy, Antonio; Viaro, Umberto 4 1983 A note on the model reduction problem. Zbl 0509.93028Lepschy, Antonio; Viaro, Umberto 2 1983 An improvement in the Routh-Padé approximation techniques. Zbl 0511.93044Lepschy, Antonio; Viaro, Umberto 8 1982 all cited Publications top 5 cited Publications all top 5 Cited by 161 Authors 20 Viaro, Umberto 14 Lepschy, Antonio 8 Mian, Gian Antonio 6 Casagrande, Daniele 6 Krajewski, Wiesław 5 Aguirre, Luis Antonio 4 Blanchini, Franco 3 Czachórski, Tadeusz 3 Domanśka, Joanna 3 Domański, Adam 3 Klamka, Jerzy 3 Latawiec, Krzysztof J. 3 Miani, Stefano 3 Rydel, Marek 3 Stanisławski, Rafał 3 Wang, Dejin 2 Bayhan, Nevra 2 Beattie, Christopher A. 2 Cai, Guangbin 2 Cobelli, Claudio 2 Gao, Xueli 2 Giordano, Giulia 2 Gryazina, Elena N. 2 Gugercin, Serkan 2 Lucas, T. N. 2 Michiels, Wim 2 Miller, Daniel E. 2 Mittal, Ramesh Chand 2 Pal, Jayanta Kumar 2 Papadopoulos, Demetrios P. 2 Polyak, Boris Teodorovich 2 Satakshi 2 Söylemez, Mehmet Turan 2 Szyguła, Jakub 2 Tremba, Andrey Aleksandrovich 2 Xie, Wei 1 Agarwal, Ravi P. 1 Aliaga, Walter 1 An, Yi 1 Atoui, Hussam 1 Bandekas, D. V. 1 Bernstein, Dennis S. 1 Bhaya, Amit 1 Bingi, Kishore 1 Boglou, A. K. 1 Bossi, Annalisa 1 Boutat, Driss 1 Brown, Reginald Frederick 1 Busenberg, Stavros N. 1 Chen, Boshan 1 Colussi, Livio 1 Cui, Jingan 1 Dang, Chaoliang 1 Desai, S. R. 1 Dhankhar, Ritu 1 Drmač, Zlatko 1 Du, Wei 1 Farrokhi, Mohammad 1 Flagg, Garret M. 1 Fu, Chaojin 1 Gajic, Zoran 1 Gemignani, Luca 1 Godfrey, Keith R. 1 Gumussoy, Suat 1 Han, Pu 1 Han, Xiaojun 1 Harindran, Vivekananda Rajah 1 Hassam, Sabo Miya 1 He, Huafeng 1 Ho, Ming-Tzu 1 Hu, Changhua 1 Huang, Jingjing 1 Hwang, Chyi 1 Ibrahim, Rosdiazli 1 Ishii, Shota 1 Jacquez, John A. 1 Jacur, G. Romanin 1 Jiang, Wei 1 Kandanvli, V. Krishna Rao 1 Kar, Haranath 1 Karsiti, Mohd Noh 1 Kaszkurewicz, Eugenius 1 Kim, Tae-Hyoung 1 Kumar, Prasanna V. K. 1 Lee, Ying-Chin 1 Lelic, Muhidin 1 Lenhart, Suzanne M. 1 Liang, Shu 1 Liu, Huan 1 Liu, Miao 1 Liu, Wei 1 Lu, Jinghui 1 Lü, Junming 1 Lu, Kangdi 1 Malti, Rachid 1 Marek, Dariusz 1 Martinez, John-Jairo 1 Maruta, Ichiro 1 Masubuchi, Izumi 1 Matušů, Radek ...and 61 more Authors all top 5 Cited in 34 Serials 24 Journal of the Franklin Institute 11 International Journal of Systems Science 7 International Journal of Control 7 Automatica 5 Systems & Control Letters 5 Asian Journal of Control 4 Mathematical Biosciences 3 Circuits, Systems, and Signal Processing 3 MCSS. Mathematics of Control, Signals, and Systems 3 Mathematical Problems in Engineering 3 International Journal of Applied Mathematics and Computer Science 2 Numerical Algorithms 2 Automation and Remote Control 2 International Journal of Systems Science. Principles and Applications of Systems and Integration 1 International Journal of General Systems 1 Applied Mathematics and Computation 1 Journal of Computational and Applied Mathematics 1 Mathematics and Computers in Simulation 1 International Journal of Production Research 1 Signal Processing 1 Applied Mathematical Modelling 1 International Journal of Robust and Nonlinear Control 1 Archives of Control Sciences 1 International Applied Mechanics 1 Advances in Computational Mathematics 1 Complexity 1 Nonlinear Dynamics 1 Vietnam Journal of Mathematics 1 Discrete Dynamics in Nature and Society 1 Discrete and Continuous Dynamical Systems. Series B 1 Journal of Control Theory and Applications 1 Complex Analysis and Operator Theory 1 Symmetry 1 SIAM/ASA Journal on Uncertainty Quantification all top 5 Cited in 20 Fields 88 Systems theory; control (93-XX) 13 Ordinary differential equations (34-XX) 10 Approximations and expansions (41-XX) 9 Biology and other natural sciences (92-XX) 8 Real functions (26-XX) 7 Numerical analysis (65-XX) 6 Functions of a complex variable (30-XX) 6 Computer science (68-XX) 4 Operations research, mathematical programming (90-XX) 3 Optics, electromagnetic theory (78-XX) 3 Information and communication theory, circuits (94-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Field theory and polynomials (12-XX) 1 Special functions (33-XX) 1 Partial differential equations (35-XX) 1 Integral transforms, operational calculus (44-XX) 1 Operator theory (47-XX) 1 Statistics (62-XX) Citations by Year