Krajewski, Wieslaw; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto Frequency-domain approach to robust PI control. (English) Zbl 1124.93024 J. Franklin Inst. 342, No. 6, 674-687 (2005). Reviewer: Octavian Pastravanu (Iaşi) MSC: 93B51 93B35 93C80 PDFBibTeX XMLCite \textit{W. Krajewski} et al., J. Franklin Inst. 342, No. 6, 674--687 (2005; Zbl 1124.93024) Full Text: DOI
Blanchini, Franco; Lepschy, Antonio; Miani, Stefano; Viaro, Umberto Characterization of PID and lead/lag compensators satisfying given \(\mathcal H_{\infty}\) specifications. (English) Zbl 1365.93169 IEEE Trans. Autom. Control 49, No. 5, 736-740 (2004). MSC: 93B51 93B36 PDFBibTeX XMLCite \textit{F. Blanchini} et al., IEEE Trans. Autom. Control 49, No. 5, 736--740 (2004; Zbl 1365.93169) Full Text: DOI
Lepschy, Antonio; Viaro, Umberto Feedback: a technique to a “tool for thought”. (English) Zbl 1098.00504 Lucertini, Mario (ed.) et al., Technological concepts and mathematical models in the evolution of modern engineering systems. Controlling, managing, organizing. Basel: Birkhäuser (ISBN 3-7643-6940-X/hbk). 129-155 (2004). MSC: 00A69 93B52 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, in: Technological concepts and mathematical models in the evolution of modern engineering systems. Controlling, managing, organizing. Basel: Birkhäuser. 129--155 (2004; Zbl 1098.00504)
Ferrante, A.; Krajewski, W.; Lepschy, A.; Viaro, U. Analytic stability margin design for unstable and nonminimum-phase plants. (English) Zbl 1364.93590 IEEE Trans. Autom. Control 47, No. 12, 2117-2121 (2002). MSC: 93D09 93B50 PDFBibTeX XMLCite \textit{A. Ferrante} et al., IEEE Trans. Autom. Control 47, No. 12, 2117--2121 (2002; Zbl 1364.93590) Full Text: DOI
Ferrante, A.; Lepschy, A.; Viaro, U. A variant of a convergent fixed-point algorithm that avoids computing Jacobians. (English) Zbl 1161.68494 Ital. J. Pure Appl. Math. 10, 47-54 (2001). MSC: 68Q25 65H10 68W40 PDFBibTeX XMLCite \textit{A. Ferrante} et al., Ital. J. Pure Appl. Math. 10, 47--54 (2001; Zbl 1161.68494)
Ferrante, A.; Lepschy, A.; Viaro, U. Convergence analysis of a fixed-point algorithm. (English) Zbl 1008.68056 Ital. J. Pure Appl. Math. 9, 179-186 (2001). Reviewer: Jaak Henno (Tallinn) MSC: 68Q25 65H10 68W40 PDFBibTeX XMLCite \textit{A. Ferrante} et al., Ital. J. Pure Appl. Math. 9, 179--186 (2001; Zbl 1008.68056)
Ferrante, A.; Krajewski, W.; Lepschy, A.; Viaro, U. Remarks on the steady-state accuracy of a feedback control system. (English) Zbl 1021.93010 Control Cybern. 29, No. 1, 51-67 (2000). Reviewer: William J.Satzer jun.(St.Paul) MSC: 93B51 93B52 93B35 PDFBibTeX XMLCite \textit{A. Ferrante} et al., Control Cybern. 29, No. 1, 51--67 (2000; Zbl 1021.93010)
Ferrante, A.; Lepschy, A.; Viaro, U. A simple proof of the Routh test. (English) Zbl 0955.93048 IEEE Trans. Autom. Control 44, No. 6, 1306-1309 (1999). MSC: 93D20 93C80 30C15 PDFBibTeX XMLCite \textit{A. Ferrante} et al., IEEE Trans. Autom. Control 44, No. 6, 1306--1309 (1999; Zbl 0955.93048) Full Text: DOI
Ferrante, Augusto; Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto Convergent algorithm for \(L_2\) model reduction. (English) Zbl 0930.93013 Automatica 35, No. 1, 75-79 (1999). MSC: 93B11 93D15 93E24 PDFBibTeX XMLCite \textit{A. Ferrante} et al., Automatica 35, No. 1, 75--79 (1999; Zbl 0930.93013) Full Text: DOI
Beghi, Alessandro; Lepschy, Antonio; Viaro, Umberto The Hurwitz matrix and the computation of second-order information indices. (English) Zbl 0912.93013 Jeltsch, R. (ed.) et al., Stability theory. Hurwitz centenary conference, Ascona, Switzerland, May 21-26, 1995. Basel: Birkhäuser. ISNM, Int. Ser. Numer. Math. 121, 1-10 (1996). Reviewer: S.Curteanu (Iaşi) MSC: 93B11 93B55 PDFBibTeX XMLCite \textit{A. Beghi} et al., ISNM, Int. Ser. Numer. Math. 121, 1--10 (1996; Zbl 0912.93013)
Krajewski, Wieslaw; Lepschy, Antonio; Viaro, Umberto On the notion of pole dominance. (English) Zbl 0875.93162 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 154, No. 1, 15-32 (1996). MSC: 93B55 93C05 93B11 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 154, No. 1, 15--32 (1996; Zbl 0875.93162)
Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto Model reduction by reproducing the asymptotic response. (English) Zbl 0850.93140 J. Franklin Inst. 332B, No. 4, 393-402 (1995). MSC: 93B11 PDFBibTeX XMLCite \textit{W. Krajewski} et al., J. Franklin Inst. 332B, No. 4, 393--402 (1995; Zbl 0850.93140) Full Text: DOI
Krajewski, W.; Lepschy, A.; Redivo-Zaglia, M.; Viaro, U. A program for solving the \(L_ 2\) reduced-order model problem with fixed denominator degree. (English) Zbl 0830.65066 Numer. Algorithms 9, No. 3-4, 355-377 (1995). Reviewer: G.Jumarie (Montreal) MSC: 65K10 93B11 93A15 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Numer. Algorithms 9, No. 3--4, 355--377 (1995; Zbl 0830.65066) Full Text: DOI
Krajewski, W.; Lepschy, A.; Viaro, U. Model reduction by matching Markov parameters, time moments, and impulse- response energies. (English) Zbl 0825.93092 IEEE Trans. Autom. Control 40, No. 5, 949-953 (1995). MSC: 93B11 93C80 PDFBibTeX XMLCite \textit{W. Krajewski} et al., IEEE Trans. Autom. Control 40, No. 5, 949--953 (1995; Zbl 0825.93092) Full Text: DOI
Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto Remarks on algorithms for \(L_ 2\) model reduction. (English) Zbl 0825.93091 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 152, No. 1, 99-106 (1994). MSC: 93B11 93B40 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 152, No. 1, 99--106 (1994; Zbl 0825.93091)
Krajewski, W.; Lepschy, A.; Viaro, U. Approximation of continuous-time linear systems using Markov parameters and energy indices. (English) Zbl 0817.93008 Arch. Control Sci. 3, No. 1-2, 5-14 (1994). MSC: 93B11 93A30 93C05 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Arch. Control Sci. 3, No. 1--2, 5--14 (1994; Zbl 0817.93008)
Beghi, Alessandro; Lepschy, Antonio; Viaro, Umberto A property of the routh table and its use. (English) Zbl 0825.93277 IEEE Trans. Autom. Control 39, No. 12, 2494-2496 (1994). MSC: 93B99 PDFBibTeX XMLCite \textit{A. Beghi} et al., IEEE Trans. Autom. Control 39, No. 12, 2494--2496 (1994; Zbl 0825.93277) Full Text: DOI
Lepschy, A.; Viaro, U. Derivation of recursive stability-test procedures. (English) Zbl 0825.93261 Circuits Syst. Signal Process. 13, No. 5, 615-623 (1994). MSC: 93B55 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Circuits Syst. Signal Process. 13, No. 5, 615--623 (1994; Zbl 0825.93261) Full Text: DOI
Krajewski, Wieslaw; Lepschy, Antonio; Viaro, Umberto Reduction of linear continuous-time multivariable systems by matching first- and second-order information. (English) Zbl 0925.93314 IEEE Trans. Autom. Control 39, No. 10, 2126-2129 (1994). MSC: 93C05 93C99 PDFBibTeX XMLCite \textit{W. Krajewski} et al., IEEE Trans. Autom. Control 39, No. 10, 2126--2129 (1994; Zbl 0925.93314) Full Text: DOI
Krajewski, W.; Lepschy, A.; Viaro, U. Second-order information in recursive stability-test algorithms. (English) Zbl 0925.93794 Helmke, Uwe (ed.) et al., Systems and networks: mathematical theory and applications. Proceedings of the 10th international symposium on the mathematical theory of networks and systems, MTNS ’93, held in Regensburg, Germany, August 2-6, 1993. Volume II: Invited and contributed papers. Berlin: Akademie Verlag. Math. Res. 79, 297-300 (1994). MSC: 93D05 93C05 PDFBibTeX XMLCite \textit{W. Krajewski} et al., in: Systems and networks: mathematical theory and applications. Proceedings of the 10th international symposium on the mathematical theory of networks and systems, MTNS '93, held in Regensburg, Germany, August 2-6, 1993. Volume II: Invited and contributed papers. Berlin: Akademie Verlag. 297--300 (1994; Zbl 0925.93794)
Beghi, Alessandro; Lepschy, Antonio; Viaro, Umberto Recursive evaluation of the squared \(L_ 2\) norm of a rational function. (English) Zbl 0830.93021 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 151, No. 3, 199-208 (1993). Reviewer: Petko Hr.Petkov (Sofia) MSC: 93B40 93C05 PDFBibTeX XMLCite \textit{A. Beghi} et al., Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 151, No. 3, 199--208 (1993; Zbl 0830.93021)
Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. Optimality conditions in multivariable \(L_ 2\) model reduction. (English) Zbl 0812.93019 J. Franklin Inst. 330, No. 3, 431-439 (1993). MSC: 93B11 93A30 93C80 PDFBibTeX XMLCite \textit{W. Krajewski} et al., J. Franklin Inst. 330, No. 3, 431--439 (1993; Zbl 0812.93019) Full Text: DOI
Krajewski, Wiesław; Lepschy, Antonio; Viaro, Umberto Relations among the autocorrelation coefficients of recursively generated digital filters. (English) Zbl 0825.93803 Arch. Control Sci. 2, No. 1-2, 73-80 (1993). MSC: 93E11 93C62 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Arch. Control Sci. 2, No. 1--2, 73--80 (1993; Zbl 0825.93803)
Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. On flexible model reduction by the modified factor division method. (English) Zbl 0785.93022 Syst. Sci. 19, No. 2, 23-36 (1993). MSC: 93B11 93A30 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Syst. Sci. 19, No. 2, 23--36 (1993; Zbl 0785.93022)
Lepschy, Antonio; Viaro, Umberto On the mechanism of recursive stability-test algorithms. (English) Zbl 0781.93067 Int. J. Control 58, No. 2, 485-493 (1993). MSC: 93D05 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Int. J. Control 58, No. 2, 485--493 (1993; Zbl 0781.93067) Full Text: DOI
Krajewski, Wiesław; Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Compact form of the optimality conditions for multivariable \(L_ 2\) model reduction. (English) Zbl 0843.93014 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 150, 119-128 (1992). Reviewer: M.Tibaldi (Bologna) MSC: 93B11 93C35 PDFBibTeX XMLCite \textit{W. Krajewski} et al., Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 150, 119--128 (1992; Zbl 0843.93014)
Lepschy, A.; Viaro, U. Complexity and feedback. (English) Zbl 0783.93001 Systems, models and feedback: theory and applications, Proc. US-Italy Workshop in Honor of Prof. Antonio Ruberti, Capri/Italy 1992, Prog. Syst. Control Theory 12, 111-126 (1992). MSC: 93A10 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Prog. Syst. Control Theory 12, 111--126 (1992; Zbl 0783.93001)
Lepschy, A.; Mian, G. A.; Viaro, U. Efficient split algorithms for continuous-time and discrete-time systems. (English) Zbl 0725.93058 J. Franklin Inst. 328, No. 1, 103-121 (1991). MSC: 93C55 PDFBibTeX XMLCite \textit{A. Lepschy} et al., J. Franklin Inst. 328, No. 1, 103--121 (1991; Zbl 0725.93058) Full Text: DOI
Lepschy, A.; Mian, G. A.; Viaro, U. On rational interpolation with positivity constraints. (English) Zbl 0759.41004 Circuits Syst. Signal Process. 10, No. 4, 471-483 (1991). Reviewer: J.Karlsson (Göteborg) MSC: 41A10 41A20 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Circuits Syst. Signal Process. 10, No. 4, 471--483 (1991; Zbl 0759.41004) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Split stability-test algorithms: A comparative analysis. (English) Zbl 0736.93054 New trends in systems theory, Proc. Jt. Conf., Genoa/Italy 1990, Prog. Syst. Control Theory 7, 505-512 (1991). MSC: 93C55 93C05 94A12 PDFBibTeX XMLCite \textit{A. Lepschy} et al., in: Parametric stability. . 505--512 (1991; Zbl 0736.93054)
Lepschy, A.; Mian, G. A.; Viaro, U. Hermite-type interpolation of squared-magnitude functions. (English) Zbl 0743.41008 Appl. Math. Comput. 43, No. 3, 265-270 (1991). MSC: 41A05 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Appl. Math. Comput. 43, No. 3, 265--270 (1991; Zbl 0743.41008) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Split forms of z-domain algorithms for linear prediction and stability analysis. (English) Zbl 0711.93092 Analysis and optimization of systems, Proc. 9th Int. Conf., Antibes/Fr. 1990, Lect. Notes Control Inf. Sci. 144, 218-227 (1990). MSC: 93E15 93E11 PDFBibTeX XML
Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. A unifying frame for stability-test algorithms for continuous-time systems. (English) Zbl 0708.93060 IEEE Trans. Circuits Syst. 37, No. 2, 290-296 (1990). MSC: 93D05 30C15 93C05 PDFBibTeX XMLCite \textit{W. Krajewski} et al., IEEE Trans. Circuits Syst. 37, No. 2, 290--296 (1990; Zbl 0708.93060) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Common setting for some classical z-domain algorithms in linear system theory. (English) Zbl 0698.93068 Int. J. Syst. Sci. 21, No. 4, 739-747 (1990). MSC: 93D99 93B40 30C15 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Int. J. Syst. Sci. 21, No. 4, 739--747 (1990; Zbl 0698.93068) Full Text: DOI
Krajewski, W.; Lepschy, A.; Mian, G. A.; Viaro, U. On model reduction by \(L_ 2\)-optimal pole retention. (English) Zbl 0695.93036 J. Franklin Inst. 327, No. 1, 61-70 (1990). MSC: 93B50 PDFBibTeX XMLCite \textit{W. Krajewski} et al., J. Franklin Inst. 327, No. 1, 61--70 (1990; Zbl 0695.93036) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Zero-input limit cycles and stability in second-order fixed-point digital filters with two magnitude truncation quantizers. (English) Zbl 0697.93057 Circuits Syst. Signal Process. 8, No. 4, 427-433 (1989). MSC: 93E11 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Circuits Syst. Signal Process. 8, No. 4, 427--433 (1989; Zbl 0697.93057) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Splitting of some s-domain stability-test algorithms. (English) Zbl 0694.93087 Int. J. Control 50, No. 6, 2237-2247 (1989). MSC: 93D99 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Int. J. Control 50, No. 6, 2237--2247 (1989; Zbl 0694.93087) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Euclid-type algorithm and its applications. (English) Zbl 0669.65036 Int. J. Syst. Sci. 20, No. 6, 945-956 (1989). Reviewer: S.Filippi MSC: 65H05 65L07 34D20 26C10 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Int. J. Syst. Sci. 20, No. 6, 945--956 (1989; Zbl 0669.65036) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Limit cycles due to the signal quantization in digital filters. (English) Zbl 0708.93075 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 146, 1-19 (1988). Reviewer: A.Lepschy MSC: 93D99 93C10 93C55 39A11 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 146, 1--19 (1988; Zbl 0708.93075)
Lepschy, A.; Mian, G. A.; Viaro, U. A geometrical interpretation of the Routh test. (English) Zbl 0671.93049 J. Franklin Inst. 325, No. 6, 695-703 (1988). MSC: 93D25 30C15 93C55 PDFBibTeX XMLCite \textit{A. Lepschy} et al., J. Franklin Inst. 325, No. 6, 695--703 (1988; Zbl 0671.93049) Full Text: DOI
Lepschy, Antonio; Mian, Gian A; Viaro, Umberto Stability preservation and computational aspects of a newly proposed reduction method. (English) Zbl 0643.93058 IEEE Trans. Autom. Control 33, No. 3, 307-310 (1988). MSC: 93D99 93B40 93C05 41A20 PDFBibTeX XMLCite \textit{A. Lepschy} et al., IEEE Trans. Autom. Control 33, No. 3, 307--310 (1988; Zbl 0643.93058) Full Text: DOI
Lepschy, A.; Mian, G. A.; Viaro, U. A stability test for continuous systems. (English) Zbl 0633.93059 Syst. Control Lett. 10, No. 3, 175-179 (1988). MSC: 93D99 30C15 93C05 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Syst. Control Lett. 10, No. 3, 175--179 (1988; Zbl 0633.93059) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto System approximation by matching the impulse response energies. (English) Zbl 0628.93039 J. Franklin Inst. 325, No. 1, 17-26 (1988). MSC: 93C35 41A21 93C05 93D20 PDFBibTeX XMLCite \textit{A. Lepschy} et al., J. Franklin Inst. 325, No. 1, 17--26 (1988; Zbl 0628.93039) Full Text: DOI
Lepschy, Antonio; Jacur, Giorgio Romanin; Viaro, Umberto A procedure to obtain the symbolic expression of input-output representations from a signal flow graph. (English) Zbl 0625.90028 Control Cybern. 15, 425-445 (1987). MSC: 90B10 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Control Cybern. 15, 425--445 (1987; Zbl 0625.90028)
Lepschy, A.; Mian, G. A.; Viaro, U. A method for optimal linear model reduction. (English) Zbl 0613.93030 Syst. Control Lett. 8, 405-410 (1987). MSC: 93C05 41A21 93C35 68U20 93B40 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Syst. Control Lett. 8, 405--410 (1987; Zbl 0613.93030) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Global asymptotic stability of digital filters with roundoff nonlinearities. (English) Zbl 0598.93048 Analysis and optimization of systems, Proc. 7th Int. Conf., Antibes/France 1986, Lect. Notes Control Inf. Sci. 83, 617-629 (1986). Reviewer: D.Stanomir MSC: 93D20 93C10 93C55 93E11 PDFBibTeX XML
Cobelli, C.; Lepschy, A.; Romanin Jacur, G.; Viaro, U. Symbolic expression of transfer functions in compartmental systems with control. (English) Zbl 0591.93024 Int. J. Syst. Sci. 17, 925-935 (1986). Reviewer: N.Vulchanov MSC: 93C05 05C75 93B17 05C20 93C99 94C15 PDFBibTeX XMLCite \textit{C. Cobelli} et al., Int. J. Syst. Sci. 17, 925--935 (1986; Zbl 0591.93024) Full Text: DOI
Cobelli, Claudio; Lepschy, Antonio; Romanin Jacur, Giorgio; Viaro, Umberto Compartmental graphs accounting for smoothing, integration and differentiation. (English) Zbl 0587.90023 J. Franklin Inst. 321, 179-188 (1986). MSC: 91B60 PDFBibTeX XMLCite \textit{C. Cobelli} et al., J. Franklin Inst. 321, 179--188 (1986; Zbl 0587.90023) Full Text: DOI
Lepschy, A.; Jacur, G. Romanin; Viaro, U. An extension to ’an algorithm for finding a circuit of even length in a directed graph’. (English) Zbl 0585.05009 Int. J. Syst. Sci. 17, 829-831 (1986). MSC: 05C20 05C38 68R10 PDFBibTeX XMLCite \textit{A. Lepschy} et al., Int. J. Syst. Sci. 17, 829--831 (1986; Zbl 0585.05009) Full Text: DOI
Lepschy, A.; Viaro, U. Model reduction for control systems with restricted complexity controllers. (English) Zbl 0572.93029 J. Franklin Inst. 319, 559-567 (1985). MSC: 93B50 93C05 93C35 93B35 93C99 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, J. Franklin Inst. 319, 559--567 (1985; Zbl 0572.93029) Full Text: DOI
Lepschy, Antonio; Mian, Gian Antonio; Viaro, Umberto Computational aspects of rational interpolation. (English) Zbl 0646.65007 Atti Ist. Veneto Sci. Lett. Arti, Cl. Sci. Fis. Mat. Nat. 143(1984-85), 67-74 (1985). MSC: 65D05 68Q25 41A05 41A20 PDFBibTeX XML
Lepschy, Antonio; Viaro, Umberto Model reduction using the output equation error. (English) Zbl 0546.93044 Int. J. Syst. Sci. 15, 1011-1021 (1984). Reviewer: D.Franke MSC: 93C35 93C05 93C99 68U20 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Int. J. Syst. Sci. 15, 1011--1021 (1984; Zbl 0546.93044) Full Text: DOI
Lepschy, Antonio; Viaro, Umberto Some problems in model order reduction using frequency-domain methods. (English) Zbl 0534.93009 Mathematical theory of networks and systems, Proc. int. Symp., Beer Sheva/Isr. 1983, Lect. Notes Control Inf. Sci. 58, 639-656 (1984). MSC: 93A15 93C05 93C99 33C45 68U20 93B17 41A21 PDFBibTeX XML
Lepschy, Antonio; Viaro, Umberto A note on the model reduction problem. (English) Zbl 0509.93028 IEEE Trans. Autom. Control 28, 525-527 (1983). MSC: 93B40 41A21 93B17 41A60 93D99 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, IEEE Trans. Autom. Control 28, 525--527 (1983; Zbl 0509.93028) Full Text: DOI
Lepschy, Antonio; Viaro, Umberto Some considerations on non-minimality, ill-conditioning, and instability of Padé approximants. (English) Zbl 0508.93010 Int. J. Syst. Sci. 14, 633-646 (1983). MSC: 93B20 41A21 93C35 93C05 93C99 93B17 93D20 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Int. J. Syst. Sci. 14, 633--646 (1983; Zbl 0508.93010) Full Text: DOI
Lepschy, Antonio; Viaro, Umberto An improvement in the Routh-Padé approximation techniques. (English) Zbl 0511.93044 Int. J. Control 36, 643-661 (1982). MSC: 93C35 41A21 93C05 93B17 93C15 93C99 PDFBibTeX XMLCite \textit{A. Lepschy} and \textit{U. Viaro}, Int. J. Control 36, 643--661 (1982; Zbl 0511.93044) Full Text: DOI