Undergraduate and graduate studies at the University of Thessaloniki (B. Sc., 1985 in Mathematics, Ph.D., 1991 in Mathematics). Postgraduate Erasmus scholar, University of Rome " La Sapienza " (1989-1990). He has worked at the University of New South Wales, Australia (Postdoctoral Research Fellow, 1991-1992), University of Adelaide, Australia (Postdoctoral Research Fellow, 1992-1995) and Cooperative Research Center for Sensor Signal and Information Processing, Australia (Researcher 1993-1995). University of Cyprus: Assistant Professor, 8/12/1995-31/8/1999. Associate Professor, 1/9/ 1999-30/6/2008. Professor since 1/7/2008.

Harmonic analysis
Orthogonal polynomials
Special functions
Approximation theory
Fourier analysis
Geometric function theory
Analytic number theory

[1] Horst Alzer, Christian Berg and Stamatis Koumandos. On a
conjecture of Clark and Ismail.
Journal of Approximation Theory 134, (2005), no. 1, 102-113.

[2] Stamatis Koumandos and Stephan Ruscheweyh. Positive Gegenbauer
polynomial sums and applications to starlike functions.
Constructive Approximation 23 (2006), no. 2, 197-210.

[3] Horst Alzer and Stamatis Koumandos. Sub- and Superadditive
properties of the Fej\'{e}r's sine polynomial.
Bulletin of the London Mathematical Society 38 (2006), no.2, 261-268.

[4] Stamatis Koumandos. Remarks on some completely monotonic
functions.
Journal of Mathematical Analysis and Applications 324 (2006), no. 2, 1458-1461.

[5] Horst Alzer and Stamatis Koumandos. Some monotonic trigonometric
sums. Analysis (Munich).
International Mathematical Journal of Analysis and its Applications 26 (2006), no. 4, 429-449.

[6] Stamatis Koumandos. Remarks on a paper by Chao-Ping Chen and
Feng Qi.
Proceedings of the American Mathematical Society 134 (2006), no. 5, 1365-1367.

[7] Stamatis Koumandos. An extension of Vietoris's inequalities.
The Ramanujan Journal 14 (2007), no. 1, 1-38.

[8] Horst Alzer and Stamatis Koumandos. A new refinement of Young's
inequality.
Proceedings of the Edinburgh Mathematical Society 50 (2007), no. 2, 255-262.

[9] Stamatis Koumandos and Stephan Ruscheweyh. On a conjecture for
trigonometric sums and starlike functions. Journal of Approximation
Theory 149 (2007), no. 1, 42-58.

[10] Horst Alzer and Stamatis Koumandos. On the partial sums of a
Fourier series.
Constructive Approximation 27 (2008), no. 3, 253-268.

[11] Stamatis Koumandos. Monotonicity of the mean value function of
normalized Bessel functions of first kind. Advances in Inequalities
for Special Functions.
Edited by P.Cerone and S.S. Dragomir, Chapter 3, 79--85. Nova Science Publishers, 2008.
ISBN: 1-60021-919-5.

[12] Stamatis Koumandos. On Ruijsenaars' asymptotic expansion of
the logarithm of the double gamma function. Journal of Mathematical
Analysis and Applications 341 (2008), no. 2, 1125-1132.

[13] Stamatis Koumandos. Monotonicity of some functions involving
the gamma and psi functions.
Mathematics of Computation 77 (2008), no. 264, 2261-2275.

[14] Horst Alzer, Stamatis Koumandos and Martin Lamprecht. A
refinement of Vietoris' inequality for sine polynomials.
Mathematische Nachrichten, to appear.

Personal Website: http://www.mas.ucy.ac.cy

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