Professor of the National Technical University of Athens

 

 

Research interests

 

 

· Matrix Analysis

· Operator Theory

· Theory of Linear Control Systems

 

 

 

 

 

 

 

Publications

 

 

1. J. MAROULAS and S. BARNETT, Canonical forms for time invariant linear control systems  a survey with extensions. Part. I. Single input case. Intern. J. Systems Science, v. 9 (1978),  97-514.

2. J. MAROULAS and S. BARNETT, Greatest common divisor of generalized polynomials and  polynomial matrices, Linear Algebra and Applics., v. 22 (1978), 195-210.

3. J. MAROULAS and S. BARNETT, Some new results on the qualitative theory of generalized polynomials, J. Inst. of Mathematics and Application,  v. 22 (1978), 53-70.

4. J. MAROULAS and S. BARNETT, Applications of the comrade matrix to linear  multivariable systems theory, Intern. J. Control, v. 28 (1978), 129-145.

5. S. BARNETT and J. MAROULAS, More on Routh's array and Bezoutian  matrices, Inter. J. Control, v. 28 (1978), 657-664.

6. J. MAROULAS and S. BARNETT, Zero location for discrete-time linear system polynomials with respect to an orthogonal basis, Proceedings of the 1978 IEEE Conference on Decision and Control, 534-538 ; and  IEEE Trans. Autom. Control, v. 24 (1979), 785-787.

7. J. MAROULAS and S. BARNETT, Polynomials with respect to a general basis, I. Theory, J. Math. Analysis and Applications, v. 72 (1979),177-194.

8. J. MAROULAS and S. BARNETT, Polynomials with respect to a general basis,II. Applications, J. Math. Analysis and Applications, v. 72(1979), 599-614.

9. J. MAROULAS and S. BARNETT, Properties of Hermite's matrices in stability theory,  Intern. J. of Control, v. 29 (1979), 717-732.

10. J. MAROULAS and S. BARNETT, A new controllability condition, IEEE Trans. Autom. Control, v. 24 (1979), 635-637.

11. J. MAROULAS and S. BARNETT, Further results on the qualitative theory of generalized  polynomials, J. Inst. of Mathematics and Application, v. 23 (1979), 33-42.

12. J. MAROULAS and S. BARNETT, Canonical forms for time-invariant linear control systems : a survey with extensions II. Multivariable case, Inter. J. Systems Sciences, v. 10 (1979), 33-50.

13. J. MAROULAS and S. BARNETT, Continued-fraction expansion for ratios of generalized  polynomials, Applied Mathematics and Computation,  v. 6 (1980), 229-249.

14. J. MAROULAS and D. DASKALOPOULOS, Application of generalized Sylvester matrix,  Applied Mathematics and Computation, v. 8 (1981), 121-135.

15. J. MAROULAS, A triangular factorization of Bezoutian matrices, Inter. J. Control, v. 36 (1982), 1011-1019.

16. J. MAROULAS, Factorization of Matrix Polynomials with multiple roots,       Linear Algebra and its Applications, v. 69 (1985),  9-32.

17. P. LANCASTER and J. MAROULAS, The Kernel of the Bezoutian for operator polynomials, Linear and Multilinear Algebra, v. 17 (1985),  11-31.

18. N. CHONDROS and J. MAROULAS, Decomposition of a rational matrix  into partial  functions, Linear and Multilinear Algebra, v. 18 (1985),  225-248.

19. P. LANCASTER and J. MAROULAS, Inverse eigenvalue problems for damped vibrating  systems, J. Math. Analysis and Applics, v. 123 (1987),  238-261.

20. J. MAROULAS, A theorem on the factorization of matrix polynomials, Linear Algebra and  Applics., v. 84 (1986),  311-322.

21. P. LANCASTER and J. MAROULAS, Selective perturbation of   spectral properties of  vibrating systems using feedback, Linear Algebra and Applics., v. 98 (1988),  309-330.

22. J. MAROULAS, Contractive partial realization, Int. J. Control, v. 49 (1989), 681-689.

23. J. MAROULAS and P. PSARRAKOS, Geometrical properties of numerical range of matrix polynomials, Computers Math. Applics., v. 31 (1996),  41-47.

24. J. MAROULAS and P. PSARRAKOS, The boundary of numerical range of  matrix  polynomials, Linear Algebra and Applics., v. 267 (1997),  101-111.

25. J. MAROULAS and P. PSARRAKOS, On the connectedness of numerical range of matrix  polynomials, Linear Algebra and Applics., v. 280 (1998),  97-108.

26. J. MAROULAS and P. PSARRAKOS, A connection between numerical ranges of selfadjoint matrix polynomials, Linear and Multilinear Algebra, v. 44 (1998), 327-340.

27. P.  LANCASTER, J. MAROULAS and P. ZIZLER, The numerical range of selfadjoint  matrix polynomials, Operator Theory, Advances and Applics., v. 106 (1998),  291-304.

28. A. MARKUS, J. MAROULAS and P. PSARRAKOS, Spectral properties of a  matrix polynomial connected with a component of its numerical range,           Operator Theory, Advances and Applics., v. 106 (1998),  305-308.

29. S. KARANASIOS and J. MAROULAS, On the minimal polynomial of algebraic operator, J. Algebras, Groups and Geometry, v. 16 (1999),  195-202.

30. J. MAROULAS, P. IOANNOU et al., Design of SPR systems using output feedback, IEEE Autom. Control,  v. 44 (1999),  569-573.

31. J. MAROULAS and P. PSARRAKOS, The numerical range of matrix polynomials, The Bulletin of GMS, v. 42 (1999), 59-80.

32. J. MAROULAS and M. ADAM, Compressions and Dilations of numerical ranges, SIAM on Matrix Analysis and Applics., v. 21 (1999), 230-244.

33. J. MAROULAS and P. PSARRAKOS, On factorization of matrix polynomials,          Linear Algebra and Applics., v. 304 (2000),  131-139.

34. J. MAROULAS, P. PSARRAKOS  and M. TSATSOMEROS, Separable characteristic polynomials of pencils and property L^* , Elect. J. of Linear Algebra, v. 7 (2000), 182-190.

35. M. ADAM and J. MAROULAS, The Joint Numerical Range of Bordered and Tridiagonal Matrices, Operator Theory: Advances & Applics, v. 130 (2001), 29-41.

36. M. ADAM, J. MAROULAS and P. PSARRAKOS, On the Numerical Range of Rational  Matrix Functions, Linear and Multilinear Algebra,  v. 50, No 1. (2002), 75-89.

37. M. ADAM and J. MAROULAS, On compressions of normal matrices, Linear Algebra and Applics, v. 341 (2002),  403-418.

38. J. MAROULAS, P. PSARRAKOS and M. TSATSOMEROS, Perron – Frobenius type results on the numerical range, Linear Algebra and Applics,      v. 348 (2002),  49-62.

39. M. ADAM and J. MAROULAS, Canonical correlations in multi-way layout,Annals Institute of Statistical Mathematics, v. 56, (2004), 656-666.

40. R. HARTWIG  and J. MAROULAS, Focal power, Elect. J. of Linear Algebra, v. 13 (2005), 56-71.

41. M. ADAM and J. MAROULAS, Geometry in Canonical Correlations, Communications in Statistics-Theory and Methods, v. 35, No 12, (2006), 2263-2273.

42. J. MAROULAS, Further results on the Graig-Sakamoto Equation, Electr. J.of Linear Algebra, v. 17 (2008), 445-457.

43. M. ADAM and J. MAROULAS, Limited approximation of numerical range of normal matrix, Operators and Matrices, v. 4, No 1, (2010), 139-149.

44. M. ADAM and J. MAROULAS,  Τhe generalized Levinger transformation, Computational and Applied Mathematics, v. 233, (2010), 3018-3029.

 

 

Contact:

 

E-mail: maroulas@math.ntua.gr