Refereed journal publications

  1. M. Adam, I. Oikonomou and Aik. Aretaki, Sequences of lower and upper bounds for the spectral radius of a nonnegative matrix, Linear Algebra and Applics, v. 667, (2023), 165-191, https://doi.org/10.1016/j.laa.2023.03.006. [full text]

  2. N. Assimakis and M. Adam, Fast iterative solutions of Riccati and Lyapunov equations, Open Mathematics, v. 20, (2022), 1845-1857, https://doi.org/10.1515/math-2022-0546 [full text]

  3. Ι. Rizos and Μ. Adam, Mathematics students’ conceptions and reactions to questions concerning the nature of rational and irrational numbers, International Electronic Journal of Mathematics Education, 17(3), em0686, (2022), https://doi.org/10.29333/iejme/11977. [full text]

  4. M. Adam and Aik. Aretaki, Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices, Special Matrices, v. 10, iss. 1, (2022), 308-326, https://doi.org/10.1515/spma-2022-0165.[full text]

  5. N. Assimakis, M. Adam and Ch. Massouros, Distributed Periodic Steady State Kalman Filter, International Journal of Circuits, Systems and Signal Processing, v. 16(art. 38), (2022), 668-674, DOI: 10.46300/9106.2022.16.83.[full text]

  6. N. Assimakis, M. Adam, A. Ktena and Ch. Manasis, Steady state Kalman filter design for cases and deaths prediction of Covid-19 in Greece, Results in Physics, v. 21, (2021), 1-9, https://doi.org/10.1016/j.rinp.2021.104391.[full text]

  7. N. Assimakis and M. Adam, Closed form solutions of Lyapunov equations using the vech and veck operators s, ένα μέρος υποβλήθηκε στο συνέδριο AMACS’21 και πλήρης η εργασία στο περιοδικό WSEAS Transactions on Mathematics, v. 20, is. 28, (2021), 276-282, DOI: 10.37394/23206.2021.20.28.[full text]

  8. M. Adam, N. Assimakis and F. Babouklis, Sharp bounds on the spectral radius of nonnegative matrices and comparison to the Frobenius’ bounds, International Journal of Circuits, Systems and Signal Processing, v. 14, (2020), 423-434, DOI: 10.46300/9106.2020.14.57.[full text]

  9. M. Adam, D. Aggeli and Aik. Aretaki, Some new bounds on the spectral radius of nonnegative matrices,, AIMS Mathematics, v. 5(1), (2019), 701-716, https://www.aimspress.com/article/10.3934/math.2020047.[full text]

  10. M. Adam, Aik. Aretaki and Ilya M. Spitkovsky, Elliptical higher rank numerical range of some Toeplitz matrices,, Linear Algebra and Applics, v. 549, (2018), 256-275, https://doi.org/10.1016/j.laa.2018.03.024.[full text]

  11. M. Adam and N. Assimakis, k-step Fibonacci sequence and Fibonacci matrices, Journal of Discrete Mathematical Sciences & Cryptography, v. 20, iss. 5, (2017), 1183-1206.[full text]

  12. N. Assimakis, G. Tziallas, M. Adam, A. Polyzos and C. Papanastasiou, Mobile position estimation and prediction using steady state Kalman filter, , International Journal of Advanced Computer Research, v. 4, iss. 3, (2016), 261-272. [full text]

  13. M. Koziri, Th. Loukopoulos, M. Adam, N. Assimakis, Speedup of Kalman and Lainiotis filters for partitionable models, International Journal of Advanced Computer Research, v. 6, iss. 26, (2016), 160-166. [full text]

  14.  M. Adam, N. Assimakis E. Fazaeli and G. Tziallas, On  the solution of the quasi Riccati and Lyapunov equations, Asian Journal of Mathematics and Computer Research, v. 13, iss. 1, (2016), 22-33. [full text]

  15. N.L. Dimou, M. Adam and P.G. Bagos, A multivariate method for meta-analysis and comparison of diagnostic tests, Statistics in Medicine, v. 35, iss. 20, (2016), 3509-3523. [full text]

  16. P. Bagos and M. Adam, On the covariance of regression coefficients, Open Journal of Statistics (OJS), v. 5, iss. 7, (2015), 680-701.[full text]

  17. N. Assimakis and M. Adam, Mobile position tracking in three dimensions using Kalman and Lainiotis filters, The Open Mathematics Journal, v. 8, (2015), 1-6. [full text]

  18. M. Adam, N. Assimakis and A. Farina, Golden section, Fibonacci sequence and the time invariant Kalman and Lainiotis filters, Applied Mathematics and Computation, v. 250, iss. 3, (2015), 817-831. [full text]

  19. M. Adam and N. Assimakis, Nonrecursive solution for the discrete algebraic Riccati equation and , Open Mathematics, v. 13, iss. 1, (2015), 51-63. [full text]

  20. N. Assimakis and M. Adam, Inversion Free Algorithms for Computing  the Principal Square Root of a Matrix, International Journal of Mathematics and Mathematical Sciences v. 2014, Article ID 613840, (2014), 8 pages. [full text]

  21. N. Assimakis and M. Adam, Iterative and algebraic algorithms for the computation of the steady state Kalman filter gain, ISRN Applied Mathematics, International Scholarly Research Notices, v. 2014, Article ID 417623, (2014), 10 pages. [full text]

  22. N. Assimakis and M. Adam, Global Systems for Mobile Position Tracking Using Kalman and Lainiotis Filters, The Scientific World Journal, v. 2014, Article ID 130512, (2014), 8 pages. [full text]

  23. M. Adam and N. Assimakis, k-step sum and m-step gap Fibonacci sequence, ISRN Discrete Mathematics, International Scholarly Research Notices, v. 2014, Article ID 374902, (2014), 7 pages. [full text]

  24. N. Assimakis and M. Adam, Kalman Filter Riccati Equation for the Prediction, Estimation and Smoothing Error Covariance Matrices, ISRN Computational Mathematics, International Scholarly Research Notices, v. 2013, Article ID 249594, (2013), 7 pages. [full text]

  25. N. Assimakis and M. Adam, Modified Riccati Equation emanating from Lainiotis Filter, International Journal of Information Engineering (IJIE), v. 3, iss. 1, (2013), 25-29. [full text]

  26. N. Assimakis, M. Adam and C. Triantafillou, Lainiotis filter, golden section and Fibonacci sequence, Signal Processing, v. 93, iss. 4, (2013), 721-730. [full text]

  27. N. Assimakis, M. Adam, M. Koziri, S. Voliotis and K. Asimakis, Optimal decentralized Kalman filter and Lainiotis filter, Digital Signal Processing, v.23, iss. 1, (2013), 442-452, doi: 10.1016/j.dsp.2012.08.005  . [full text]

  28. N. Assimakis and M. Adam, On the Convergence of the Modified Riccati Equation, ISRN Signal Processing, v. 2012, Article ID 625897, (2012), 5 pages, doi:10.5402/2012/625897  . [full text]

  29. N. Assimakis, M. Adam and A. Douladiris, Information Filter and Kalman Filter Comparison: Selection of the Faster Filter, International Journal of Information Engineering (IJIE), v. 2, iss. 1, (2012), 1-5  . [full text]

  30. M. Adam, On the positive definite solutions of the matrix equation The Open Applied Mathematics Journal,v. 5, (2011), 19-25, in press  . [full text]

  31. M. Adam, N. Assimakis and G. Fotopoulou, On the Hermitian solutions of the matrix equation Journal of Applied Mathematics Journal and Bioinformatics,v. 1, iss. 2, (2011), 109-129  . [full text]

  32. N. Assimakis and M. Adam, , Lainiotis filter implementation via Chandrasekhar type algorithm, Journal of Computations and Modelling,v. 1, iss.1, (2011), 115-130, DOI: 10.1016/j.amc.2010.11.023  . [full text]

  33. M. Adam, On numerical ranges of the compressions of normal matrices, Applied Mathematics and Computation,v. 217, iss.9, (2011), 4699-4709, DOI: 10.1016/j.amc.2010.11.023  . [full text]

  34.  A. Koulis, C. Beneki, M. Adam and C. Botsaris, An Assessment of the Performance of Greek Mutual Equity Funds: Selectivity and Market Timing, Applied Mathematical Sciences, v. 5, iss. 4, (2011), 159-171. [full text]

  35.   N. Assimakis and M. Adam, A new author’s productivity index: p-index, Scientometrics,   v. 85, iss. 2, (2010), 415-427, DOI: 10.1007/s11192-010-0255-z,   online June 17. [full text]

  36. M. Adam and J. Maroulas, Τhe generalized Levinger transformation, Journal of Computational and Applied Mathematics, v. 233, iss. 11, (2010), 3018-3029. [full text]

  37.  M. Adam and J. Maroulas, Limited approximation of numerical range of normal matrix, Operators and Matrices, v. 4, iss. 1, (2010), 139-149. [full text]

  38.  M. Adam, N. Assimakis, G. Tziallas and F. Sanida, Riccati Equation Solution Method for the Computation of the solutions of s  and , The Open Applied Informatics Journal v. 3, (2009), 22-33. [full text]

  39. M. Chalikias, G. Kaimakamis, M. Adam and N. Karadimas, Discriminant analysis: A case study of a war data set, International Mathematical Forum, v. 4, iss. 8, (2009), 351-357. [full text]

  40. N. Αssimakis and M. Adam, Steady State Kalman filter for periodic models: A new approach, Int. Journal of Contemporary Mathematical Sciences, v. 4, iss. 5, (2009), 201-218. [full text]

  41.  N. Αssimakis and M. Adam, FIR implementation of the steady state Kalman Filter, Int. Journal of Signal and Imaging Systems Engineering, v.1, iss. 3-4, (2008), 279-286. [full text]

  42. M. Adam and N. Αssimakis, Periodic Kalman filter: Steady state from the beginning, Journal of Mathematical Sciences: Advances and Applications, v. 1, iss. 3, (2008), 505-520. [full text]

  43.  N. Assimakis, F. Sanida and M. Adam, Recursive solutions of the matrix equations  and , Applied Mathematical Sciences, v. 2, iss. 38, (2008),  1855-1872. [full text]

  44. M. Adam, N. Assimakis and F. Sanida, Αlgebraic solutions of the matrix equations  and , Int. Journal of Algebra, v. 2, iss. 11, (2008), 501 – 518. [full text]

  45. N. Assimakis and M. Adam, Discrete time Kalman and Lainiotis Filters Comparison,  Ιnt. Journal of Mathematical Analysis, v. 1, iss. 13, (2007), 635-659. [full text]

  46. M. Adam and Μ. Tsatsomeros, An eigenvalue inequality and spectrum localization for complex matrices, Electronic Journal of Linear Algebra, v. 15,  (2006), 239-250. [full text]

  47. M. Adam and J. Maroulas, Geometry in Canonical Correlations, Communications in Statistics-Theory and Methods, v. 35, iss. 12, (2006), 2263-2273. [full text]

  48. M. Adam and J. Maroulas, Canonical correlations in multi-way layout, Annals of the Institute of Statistical Mathematics, v. 56, iss. 4, (2004),  655-666.  [full text]

  49.  M. Adam and P. Psarrakos, On a compression of normal matrix polynomials, Linear and Multilinear Algebra, v. 52, iss. 3-4, (2004),  251-263. [full text]

  50. M. Adam and J. Maroulas, On Compressions of Normal Matrices, Linear Algebra and Applics, v. 341, (2002),  403-418. [full text]

  51. M. Adam, J. Maroulas and P. Psarrakos, On the Numerical Range of Rational Matrix Functions, Linear and Multilinear Algebra,  v. 50, iss. 1, (2002), 75-89. [full text]

  52. M. Adam and J. Maroulas, The Joint Numerical Range of Bordered and Tridiagonal Matrices, Operator Theory: Advances and Applics, v. 130, (2001), 29-41. [full text]

  53. J. Maroulas and M. Adam, Compressions and Dilations of  Numerical Ranges, SIAM  J. on Matrix Analysis and Applics, v. 21, iss. 1, (1999),  230-244. [full text]

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