Επιλεγμένες δημοσιεύσεις

1. 1. Pitts, S. M. and Politis, K. (2007) Approximations for the Gerber-Shiu expected discounted penalty function in the compound Poisson model. Advances in Applied Probability, 39 (2), 385-406.
   2. Pitts, S. M. and Politis, K. (2007) The joint density of the surplus before and after ruin in the Sparre Andersen model. Journal of Applied Probability, 44 (3), 695-712.
   3. Psarrakos, G. and Politis, K. (2008) Tail bounds for the joint distribution of the surplus prior to and at ruin. Insurance Mathematics and Economics, 42 (1), 163-176.
   4. Pitts, S. M. and Politis, K. (2008) Approximations for the moments of ruin time in the compound Poisson model. Insurance Mathematics and Economics, 42 (2), 668-679.
   5. Psarrakos, G. and Politis, K. (2009) A generalization of the Lundberg condition in the Sparre Andersen model and some applications. Stochastic Models, 25(1), 90-109.
   6. Psarrakos, G. and Politis, K. (2009) Monotonicity properties and the deficit at ruin in the Sparre Andersen model. Scandinavian Act. J., 104-118.
   7. Dermitzakis, V., Pitts, S.M., and Politis, K. (2010) Lundberg—type bounds and asymptotics for the moments of the time to ruin. Methodology and Computing in Applied Probability, 12(1), 155-175.
   8. Dermitzakis, V. and Politis, K. (2011) Asymptotics for the moments of the time to ruin for the compound Poisson model perturbed by diffusion. Methodology and Computing in Applied Probability, 13(4), 749-761.
   9. Frostig, E., Pitts, S. M. and Politis, K. (2012) The time to ruin and the number of claims until ruin for phase-type claims. Insurance Mathematics and Economics, 51(1), 19-25.
   10. Psarrakos, G. and Politis, K. (2012) The covariance between the surplus prior to and at ruin in the classical risk model. ASTIN Bulletin, 42(2), 631-653.
   11. Boutsikas, M.V. and Politis, K. (2017) Exit Times, Overshoot and Undershoot for a Surplus Process in the Presence of an Upper Barrier. Methodology and Computing in Applied Probability, 19(1), 75-95.
   12. Losidis, S. and Politis, K. (2017) A two-sided bound for the renewal function when the interarrival distribution is IMRL. Prob. Letters, 125, 164-170.
   13. Losidis, S. and Politis, K. (2019) The covariance of the backward and forward recurrence times in a renewal process: the stationary case and asymptotics for the ordinary case. Stochastic Models, 35(1), 51-62.
   14. Losidis, S. and Politis, K. (2020) Moments of the Forward Recurrence Time in a Renewal Process. Methodology and Computing in Applied Probability, 22(4), 1591-1600.
   15. Losidis, S. Politis, K. and Psarrakos, G. (2021) Exact results and bounds for the joint tail and moments of the recurrence times in a renewal process. Methodology and Computing in Applied Probability, 23(4), 1489-1505.
   16. Tzavelas, G., Koutropoulou, C. and Politis, K. (2022) Some properties of the failure rate function for mixtures of Erlang distributions. in Statistics: Theory and Methods, 51, 5850-5872.
   17. Dermitzakis, V. and Politis, K. (2022) Monotonicity properties for solutions of renewal equations. Prob. Letters, 109226.
   18. Losidis, S. and Politis, K. (2022) Bounds for the renewal function and related quantities. Methodology and Computing in Applied Probability, 2022, 24(4), 2647-2660.
   19. Tzavelas, G. and Politis, K. (2023) The failure rate for the convolution of two distributions, one of which has bounded support. Communications in Statistics: Theory and Methods, 53(13), 4717-4729.