Dr. Efstathios Antoniou
Personal record 
§ First Name: Efstathios § Last Name: Antoniou § Date of Birth: 24 November 1972 § Place of Birth: Larisa, Greece § Telephone: +30 2310 997909 § Email: antoniou@math.auth.gr

Educational record 
1995–2000 Aristotle University of Thessaloniki Thessaloniki, GR 1997 Technical University of Denmark 1990–1994 Aristotle University of Thessaloniki Thessaloniki, GR

Professional and teaching experience 
11/20049/2005, Visiting Assistant Professor,
AUTH, Dept. of Mathematics. 10/20048/2005, Associate Student Advisor, Hellenic
Open University, Department of Computer Science 10/20027/2005, Visiting Assistant Professor,
Tech. Educational Inst. of Thessaloniki,
Department of Sciences 10/20022/2003,
Laboratory Associate, Tech. Educational Inst. of Thessaloniki, Dept. of Electronic Engineering 10/20022/2003, Computer Seminars Instructor, ICBS, Thessaloniki Business School Thessaloniki,
GR 4/200110/2002,
Software Developer, Cybernetics
SA Thessaloniki, GR 9/19996/2000, Software Developer 1/19996/2000, Computer Seminars Instructor
Computer Seminars Instructor, KEK
Delta Ltd, Thessaloniki, GR 9/199811/1999, Computer
Seminars Instructor, AUTH
(EPEAEK) Thessaloniki, GR 10/19955/1999, Assistant Lecturer,AUTH,
Dept. of Mathematics Thessaloniki, GR

Research Projects 
12/2004–9/2005,
Bilateral cooperation between Greece and Czech Republic, Researcher
– Software Developer 10/2003–10/2004,
Postdoctoral research fellowship, Postdoctoral
Researcher 1/1998 – 4/1998,
EPRSC Fellowship, Research
Assistant 2/1996–2/1998,
PENED Project, Researcher – Software Developer 1994–1998,
EURACO Network Project, Young Researcher

Participation in Workshops and Conferences 
§ September 1994, Young Researchers Week, "Robust and adaptive control tutorial workshop", EURACO Network Dublin, Ireland. § September 1995 , "Recent results in robust and adaptive control", EURACO Network, Florence, Italy. § May 1996 , "Control of nonlinear systems theory and applications", EURACO Network, Algarve, Portugal. § June 1996, 4^{th} IEEE Control Mediterranean Symposium, Chania, Crete, Greece. § October 1996, "Robust and Adaptive Control of Integrated Systems", EURACO Network, Herrsching, Munich, Germany. § July 1997, European Control Conference 1997 (ECC 97), 14 July, Brussels, Belgium.

PhD Thesis 
Title:
“Analysis of Linear, Discretetime, Singular systems” Abstract The subject of the PhD thesis is the study of singular linear discrete time systems. The regular firstorder case has been studied by several authors in the past, mainly from an algebraic and geometric point of view. The main objective of the present study is to extend these results towards three directions. In particular, the analysis of nonregular firstorder singular systems, the study of the structure of the solution space (behaviour) of autoregressive (AR) representations and a solution method for autoregressive moving average (ARMA) representation using the fundamental matrix sequence. The structure of the solution spaces has been directly connected to the algebraic structure of the polynomial matrices describing the corresponding systems while special attention has been given on the infinite algebraic structure of the matrices involved.

Publications in international Conferences 
[C1] E. Antoniou, A.I.G. Vardulakis, N. Karampetakis, “A spectral characterization of the behavior of discrete time ARrepresentations over a finite time interval”, Proceedings of the European Control Conference 1997 (ECC 97), July 1997, Brussels, Belgium. [C2] Ő. Vlioras, E. Antoniou, A.I.G. Vardulakis, “Implementation of some Linear Multivariable System’s Algorithms via Maple”, Proceedings of the European Control Conference 1997 (ECC 97), July 1997, Brussels, Belgium. [C3] N. Karampetakis, J. Jones, E. Antoniou, “Forward, Backward and Symmetric solutions of discrete time ARMA representations”, Proceedings of the European Control Conference 1997 (ECC 97), July 1997, Brussels, Belgium. [C4] E. Antoniou, N. Karampetakis, A.I. Vardulakis, “A classification of the solutions of nonregular discretetime descriptor systems”, proceedings of the IEEE  Conference on Decision and Control (CDC 97), December 1997, San Diego, USA. [C5] A.I.G. Vardulakis, E.N. Antoniou, “Fundamental equivalence of discrete time ARrepresentations”, proceedings of the 1^{st} IFAC Symposium on System Structure and Control, August 2931, 2001, Prague, Czech Republic. [C6] E.N. Antoniou, A.I.G. Vardulakis, “A numerical method for the computation of proper denominator assigning compensators for strictly proper plants”, Proc. of the 11^{th} IEEE Med. Conference on Control and Automation, June 2003, Rhodes, Greece. [C7] A.I.G. Vardulakis, N. P. Karampetakis, E.N. Antoniou, P. Tzekis and S. Vologiannidis, “A Descriptor Systems Package for Mathematica”, Proc. of the 11^{th} IEEE Med. Conference on Control and Automation, June 2003, Rhodes, Greece. [C8] E.N. Antoniou, A.I.G. Vardulakis, and S. Vologiannidis, “On the Computation of Minimal Polynomial Bases”, Proc. of the 12^{th} IEEE Med. Conference on Control and Automation, June 2004, Kusadasi, Turkey. [C9] P. Kujan, M. Hromcik, M. Sebek, N. Karampetakis, E.N. Antoniou and S. Vologiannidis, “Effective computations with 2variable polynomial matrices in MATHEMATICA”, Proc. of the 12^{th} IEEE Med. Conference on Control and Automation, June 2004, Kusadasi, Turkey.

Publications in international research journals 
[J1] E. Antoniou, A.I.G. Vardulakis, N. Karampetakis, “A spectral characterization of the behavior of discrete time ARrepresentations over a finite time interval”, Kybernetika, vol. 34, 1998, No 5, pp. 555564. [J2] A.I. Vardulakis, E. Antoniou, N. Karampetakis, “On the solution and impulsive behavior of free linear multivariable systems”, International Journal of Control, Vol 72, No 3, 215228, 1999. [J3] E. Antoniou, A.I. Vardulakis, “A note on the action of pseudostate feedback on the internal properness of an ARMA model”, Automatica, Vol. 35, pp 14531456, 1999. [J4] N. Karampetakis, J. Jones, E.N. Antoniou, “Forward, Backward and Symmetric solutions of discrete time ARMA representations”, Circuits Systems and Signal Processing, Vol 20, No1, 2001, pp. 121. [J5] A.I.G. Vardulakis, E.N. Antoniou, “Fundamental equivalence of discrete time ARrepresentations”, Int. Journal of Control, Vol 76, No 11, July 2003, pp. 10781088. [J6] E.N. Antoniou, S. Vologianidis, “A new family of companion forms of polynomial matrices”, Electronic Journal of Linear Algebra, Vol. 11, April 2004, pp, 7887. [J7] E.N. Antoniou, A.I.G. Vardulakis, “On the computation and parameterization of proper denominator assigning compensators for strictly proper plants”, IMA Journal of Math. Control and Information, Vol. 22, No 1, March 2005, pp. 1225. [J8] E.N. Antoniou, A.I.G. Vardulakis, S. Vologianidis, “Numerical computation of minimal polynomial bases: A generalized resultant approach”, Linear Algebra and its Applications, Volume 405, 1 August 2005, Pages 264278.

Citations to journal articles by other authors 
[A1] Bourles H., "Impulsive Behaviors of discrete and continuous time varying systems: A unified approach", Eur. Control Conference (ECC) 03, Univ. of Cambridge, 14 Sept, 2003. Cites article [J1] [A2] Bourles H.,"Impulsive Systems and Behaviors in the Theory of Linear Dynamical Systems", to appear in Forum Math., 2004. Cites article [J1] [A3] Bourles H., "A new look on poles and zeros at infinity in the light of systems interconnection", of the 41st IEEE Conference on Decision and Control, Volume 2, 1013 Dec. 2002 Page(s):2125  2130 vol.2. Cites article [J1] [A4] B.P. Lampe, E.N. Rosenwasser, “Strukturierte Polvorgabe fur PMD Prozesse”, (Structural Pole Assignment for PMD Processes), Theoretische Arbeit – Automatisierungstechnik, Vol. 51, No 3, pp. 119127, 2003. Cites article [J2] [A5] D. S. Mackey, N. Mackey, C. Mehl, V. Mehrmann, “Vector Spaces of Linearizations for Matrix Polynomials“, Numerical Analysis Report, No. 464, Manchester Centre for Computational Mathematics, April 2005. Cites article [J6] 