Công bố khoa học

• Công bố khoa học

  1.  Nguyễn Khoa Sơn, Nguyễn Thị Hồng, Stability analysis of a class of coupled time-varying differential-difference systems with time-delay and sector-type nonlinearities, European Journal of Control Volume 88, March 2026, 101472

  2.  Nguyễn Khoa Sơn, Nguyễn Thị Hồng, Absolute Exponential Stability Criteria for Some Classes of Nonlinear Time-Varying Systems with Delays and Sector Nonlinearities, Vietnam Journal of Mathematics, 53(1) (2025), 183-201

  3.  Nguyễn Khoa Sơn, Nguyễn Thị Hồng, Lê Văn Ngọc, Stability conditions for a class of nonlinear timevarying switched systems with delays and sectortype nonlinearities, International Journal of Systems Science, Volume 57(2), (2025), 441-461

  4.  Nguyễn Khoa Sơn, Lê Văn Ngọc, Robustness of exponential stability of a class of switched positive linear systems with time delays, International Journal of Robust and Nonlinear Control, 34 (2024), no. 4, 2906–2926

  5.  Nguyễn Khoa Sơn, Lê Trung Hiếu, Cao Thanh Tình, Đỗ Đức Thuận, New criteria for exponential stability of a class of nonlinear continuous-time difference systems with delays, International Journal of Control, 96 (2023), 1650-1660

  6.  Nguyễn Khoa Sơn, Lê Văn Ngọc, Exponential stability analysis for a class of switched nonlinear time-varying functional differential systems, Nonlinear Analysis: Hybrid Systems, 44 (2022), 17 pages, ((SCI-E, Scopus).

  7.  Nguyễn Khoa Sơn, Nguyễn Năng Thiều, Nguyễn Đông Yên, On the solution existence for prox-regular perturbed sweeping processes, Journal of Nonlinear and Variational Analysis 5 (2021), no. 6, 851-863. (SCI-E, Scopus).

  8.  Nguyễn Khoa Sơn, Nguyễn Thị Hồng, On Structured Distance to Uncontrollability of General Linear Retarded Systems, Acta Mathematica Vietnamica volume 45, (2020), pages411–433 (Scopus).

  9.  Nguyễn Khoa Sơn, Lê Văn Ngọc, On robust stability of switched linear systems, IET Control Theory and Appl., 2020, Vol. 14, pp 19-29

  10.  Đỗ Đức Thuận, Nguyễn Khoa Sơn, Structured distance to non-surjectivity of convex processes and its applications to robust controllability under structured perturbations, IET Control Theory and Appl., 12(2018), 263-272

  11.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, Controllability radii of linear systems with constrained controls under structured perturbations, SIAM Journal on Control and Optimization, 54 (2016), 2820–2843 (SCI(-E); Scopus.).

  12.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, Nguyễn Thị Hồng, Radius of approximate controllability of linear retarded systems under structured perturbations, Systems & Control Letters, 84 (2015), 13–20 (SCI(-E), Scopus).

  13.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, The structured controllability radii of higher order systems, Linear Algebra and its Applications, 438 (2013), 2701 - 2716 (SCI(-E); Scopus).

  14.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, The structured distance to non-surjectivity and its application to calculating the controllability radius of descriptor systems, Journal of Mathematical Analysis and Applications, 388 (2012), 272–281

  15.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, On the radius of surjectivity for rectangular matrices and its application to measuring stabilizability of linear systems under structured perturbations, Journal of Nonlinear and Convex Analy, 12 (2011), 441-453

  16.  Bui The Anh, Nguyễn Khoa Sơn, Bui The Quan, Robust stability of positive linear systems under fractional perturbations in infinite dimensional spaces, Dynamics of Continuous, Discrete and Impulsive Systems, Ser. A: Mathematical Analysis 18 (2011), 420 - 441

  17.  Bui The Anh, Nguyễn Khoa Sơn, Robust stability of a class of positive quasi-polynomials in Banach spaces, Mathematical Notes, Volume 88, pages 626–636 (2010)

  18.  Bui The Anh, Nguyễn Khoa Sơn, Robust stability of delay difference systems under fractional perturbations in infinite-dimensional spaces, International Journal of Control, 83 (2010), 498 -- 505

  19.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, The structured distance to uncontrollability under multi-perturbations: an approach using multi-valued linear operators, Systems and Control Letters, 59 (2010), 476 -- 483

  20.  Bui The Anh, Nguyễn Khoa Sơn, The robustness of strong stability of posititive homogeneous difference systems under parameter perturbations, Numerical Functional Analysis and Optimization, 31 (2010), 97 -- 111

  21.  Bui The Anh, Nguyễn Khoa Sơn, Robust stability of positive linear systems in Banach spaces, Journal of Difference Equations and Applications, 16 (2010), 1447 -- 1461

  22.  Bui The Anh, Nguyễn Khoa Sơn, Robust stability of a class of positive Quasi-polynomials in banach spaces, Mathematical Notes 88 (2010), 651 - 661

  23.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, The structured controllability radii of higher order descriptor systems, Vietnam Journal of Mathematics 38 (2010), 373 - 380

  24.  Bui The Anh, Nguyễn Khoa Sơn, Stability radii of positive linear systems under fractional perturbations, International Journal of Robust and Nonlinear Control, 19 (2009), 1267 - 1277

  25.  Bui The Anh, Nguyễn Khoa Sơn, Robust stability of Metzler operators under parameter perturbations, International Journal of Robust and Nonlinear control, 19 (2009), 1931 -- 1939

  26.  Bui The Anh, Nguyễn Khoa Sơn, Duong Dang Xuan Thanh, Stability radii of positive linear time-delay systems under fractional perturbations, Systems & control letters, 58 (2009), 155-159

  27.  Bui The Anh, Nguyễn Khoa Sơn, Duong Dang Xuan Thanh, Perron-Frobenius theorem for positive polynomial operators in Banach lattices, Positivity, 13 (2009), 709-716.

  28.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, Controllability radius of linear systems under structured perturbations, Vietnam J. Math., 36 (2008), 473-479

  29.  Bui The Anh, Nguyễn Khoa Sơn, Stability radii of positive linear systems under affine parameter perturbations in infinite dimensional spaces, Positivity 12 (2008), 677 - 690

  30.  Bui The Anh, Nguyễn Khoa Sơn, Stability radii of positive higher order difference system in infinite dimensional spaces, Systems & Control Letters, 57 (2008), 822 - 827

  31.  Bui The Anh, Nguyễn Khoa Sơn, Duong Dang Xuan Thanh, Stability radii of delay difference systems under affine parameter perturbations in infinite dimensional spaces, Applied Mathematics and Computation, 202 (2008), 562 - 570.

  32.  Nguyễn Khoa Sơn, Đỗ Đức Thuận, Controllability radius of linear systems with perturbed control sets, Vietnam J. Math. 36 (2008), 239–251.

  33.  Bui The Anh, Nguyễn Khoa Sơn, Duong Dang Xuan Thanh, Robust stability of Metzler operator and delay equation in $L^p([-h,0];X)$, Vietnam Journal of Mathematics, 34 (2006), 357 - 368.

  34.  Pham Huu Anh Ngoc, Nguyễn Khoa Sơn, Stability radii of positive linear functional differential equations under multi-perturbations, SIAM Journal on Control and Optimization, 43 (2005), 2278 - 2295.

  35.  Nguyễn Khoa Sơn, N. D. Huy, Maximizing the stability radius of discrete-time linear positive systems by linear feedbacks, Vietnam Journal of Mathematics, 33 (2005), 161 - 171.

  36.  Pham Huu Anh Ngoc, Nguyễn Khoa Sơn, Stability radii of linear systems under multi-perturbations, Numerical Functional Analysis and Optimization, 25 (2005), 221 - 238.

  37.  Nguyen Dinh Huy, Nguyễn Khoa Sơn, Existence of solution for multi-valued integral equations, Vietnam Journal of Mathematics, 32 (2004), 323 - 329.

  38.  Pham Huu Anh Ngoc, Nguyễn Khoa Sơn, Stability radii of positive linear difference equations under affine parameter perturbations, Applied Mathematics and Computation, 34 (2003), 577 - 594.

  39.  D. Hinrichsen, Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Stability radii of higher order positive difference systems, Systems & Control Letters, 49 (2003), 377 - 388.

  40.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Robust stability of linear functional differential equations, Adv. Stud. Contemp. Math. (Pusan) 3 (2001), 43 - 59.

  41.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Stability radii of linear functional differential equations, Vietnam Journal of Mathematics, 29 (2001), 85 - 89.

  42.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Stability radii of linear discrete-time systems with delays, Vietnam Journal of Mathematics, 29 (2001), N0 4, 379 - 384.

  43.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Stability radius of linear delay systems, In: Proc. American Control Conference, San Diego, California, USA, June 1999, 815 - 817.

  44.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Stability of linear infinite-dimensional systems under affine and fractional perturbations, Vietnam J. Math. 27 (1999), 153 - 167.

  45.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Robust stability of positive linear time-delay systems under affine parameter perturbations, Acta Mathematica Vietnamica, 24 (1999), 353 - 371.

  46.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Robust stability of infinite-dimensional systems under affine and fractional perubations,, Vietnam J. of Mathematics, 27(1999), 132-146

  47.  A. Fischer, D. Hinrichsen, Nguyễn Khoa Sơn, Stability radii of Metzler operators, Vietnam J. Math. 26 (1998) 147 - 162.

  48.  D. Hinrichsen, Nguyễn Khoa Sơn, Stability radii of positive discrete-time systems under affine parameter perturbations, International Journal of Robust and Nonlinear Control, 8 (1998), 1169 - 1188.

  49.  Nguyễn Khoa Sơn, Pham Huu Anh Ngoc, Complex stability radius of linear retarded systems, Vietnam J. Math. 26 (1998), 379 - 384.

  50.  Nguyễn Khoa Sơn, D. Hinrichsen, $\mu$ analysis and robust stability of positive linear systems, Appl. Math. Comput. Sci. 8 (1998), N0 2, 253 - 268.

  51.  D. Hinrichsen, Nguyễn Khoa Sơn, Stability radii of positive discrete-time systems, 3rd International Conference on Approximation and Optimization in the Caribbean (Puebla, 1995), 113–124, Aportaciones Mat. Comun., 24, Soc. Mat. Mexicana, México, 1998.

  52.  Fischer. D, D. Hinrichsen, Nguyễn Khoa Sơn, Robust stability of Metzler operators, Vietnam J. of Mathematics, 26(1998) 147-162.

  53.  Nguyễn Khoa Sơn, Nguyen Dinh Huy, On the existence of solutions to functional differential inclusions with boundary values, Vietnam J. Math., 25(1997), 331-340

  54.  Nguyễn Khoa Sơn, Approximate controllability with positive controls, Acta Math. Vietnamica, 22(1997), 589-620

  55.  Nguyễn Khoa Sơn, D. Hinrichsen, Robust stability positive continuous time systems, Numerical Functional Analysis and Optimization, 17(1996), 649-659

  56.  D. Hinrichsen, Nguyễn Khoa Sơn, On structured singular values and stability radii of systems under affine perturbations, Vietnam J. Math., 1(1996), 112-117

  57.  Nguyễn Khoa Sơn, On the real stability radius of positive linear discrete-time systems, Numerical Functional Analysis and Optimization, 16(1995), 1067-1085

  58.  Nguyễn Khoa Sơn, On the real stability radius of linear systems invariant with respect to a convex cone, Vietnam J. Math., 23(1995), 116-121

  59.  Nguyễn Khoa Sơn, Nguyen Dinh Huy, Existence and relaxation of solutions of functional differential inclusions, Vietnam J. of Mathematics, 2(1995), 279-291

  60.  Nguyễn Khoa Sơn, Stability radii of positive dynamical systems, In: Proceedings of Inter. Congress of Industrial and Applied Mathematics, ICIAM'95, Hamburg, FRG, July 3-9, 1995, In Zeitschrift fuer Angewandte Mathematik und Mechanik, ZAMM, Vol.2 : Applied Analysis, 756-758

  61.  Nguyễn Khoa Sơn, On the existence of positive eigenvalues of convex set-valued maps, Vietnam J. of Mathematics, 22(1994), 109-113

  62.  Nguyễn Khoa Sơn, Dynamical systems with state and control constraints: controllability and related topics, Vietnam J. Math., 21(1993), 1-35.

  63.  Nguyen Dinh Huy, Nguyễn Khoa Sơn, On the existence of solutions of functional differential inclusions in Banach spaces, Acta Mathematica Vietnamica, 16(1991), 49-60

  64.  D. Hinrichsen, Nguyễn Khoa Sơn, Stability radii of discrete-time systems and simpletic pencils, International Journal of Robust and Nonlinear Control, 1(1991), 79-91

  65.  Nguyễn Khoa Sơn, Nguyen Dinh Huy, On the qualitative properties of the solution set to functional differential inclusions in Banach spaces, Vietnam J. Math., 19(1991), 45-58

  66.  Nguyễn Khoa Sơn, A unified approach to constrained approximate controllability for the heat equations and the retarded equations, Journal of Mathematical Analysis and Applications, 159(1990), 1-19

  67.  Vũ Ngọc Phát, Nguyễn Khoa Sơn, Linear nonstationary control systems : null controllability with restrained controls in Banach spaces, Optimization, 21(1990), 271-280

  68.  Nguyễn Khoa Sơn, Approximate controllability of linear retarded systems in $R^n \times L^p$: a discrete time approach, Lecture Notes in Control and Information Sciences, Springer-Verlag, 143(1990), 404-412

  69.  Nguyễn Khoa Sơn, On the null-controllability of linear discrete-time systems with restrained controls, Journal of Optimization Theory and Applications, 50(1986), 313-329

  70.  Nguyễn Khoa Sơn, Nguyen Van Su, Linear periodic systems: Controllability with restrained controls, Applied Mathematics and Optimization, 14(1986), 173-195

  71.  Nguyễn Khoa Sơn, Some remarks on the global controllability of linear discrete-time systems with bounded controls, Bollet. Uni. Mat. Italiana, Anal. Funz. Appl., Serie VI, V(1986), 245-254.

  72.  Nguyễn Khoa Sơn, Global controllability of linear autonomous systems : a geometric consideration, Systems and Control Letters, 6(1985), 207-212

  73.  Nguyễn Khoa Sơn, Controllability of linear discrete-time systems with constrained controls in Banach spaces, Control and Cybern. 10 (1981), 5 - 16

  74.  Nguyễn Khoa Sơn, Local controllability of linear systems with restrained controls in Banach space, Acta Math. Vietnam. 5 (1980), 78 - 87

  75.  Nguyễn Khoa Sơn, $\sigma$ controllability of linear autonomous systems with constraints on controls, Differ. Uravnenia 16 (1980), 394 - 404 (in Russian).

  76.  Korobov. V. I, Nguyễn Khoa Sơn, Controllability of linear systems in a Banach space in the presence of constraints on controls, II, Differ. Uravnenia 16 (1980), 1010 - 1022 (in Russian).

  77.  Korobov. V. I, Nguyễn Khoa Sơn, Controllability of linear systems in a Banach space in the presence of constraints on controls, I, Differ. Uravnenia 16 (1980), 806 - 817 (in Russian).

  78.  Nguyễn Khoa Sơn, Controllability of dynamical systems in the presence of constraints on controls, Ph. D. Thesis, Kharkov University, 1978, Kharkov (in Russian).

  79.  Nguyễn Khoa Sơn, Controllability of nonlinear systems with damped perturbations, Vestnik Kharkov Univ. 43 (1978), 21 - 34 (in Russian).