TALKS

  1. Numerical methods of chaos detection 
    Mathematics Seminar, Khalifa University, Abu Dhabi, United Arab Emirates, 4 June 2025. 
    (pdf file, 9.83 Mb)

  2. Lagrangian descriptors: A powerful method for investigating the behavior and chaoticity of dynamical systems 
    6th International Interdisciplinary Symposium on Chaos and Complex Systems (SCCS2025), Istanbul, Turkey, 9 May 2025.
    (pdf file, 5.56 Mb)

  3. Energy transport and chaos in a one-dimensional disordered nonlinear stub lattice model  
    5th International Conference on Integrable Systems and Nonlinear Dynamics (hybrid event – online participation), Yaroslavl, Russia, 9 October 2024.
    (pdf file, 3.75 Mb)

  4. Quantifying chaos using Lagrangian descriptors 
    International Conference on Nonlinear Science and Complexity, Yibin, China, 5 August 2024.
    (pdf file, 6.11 Mb)

  5. Quantifying chaos in conservative dynamical systems by using Lagrangian descriptors 
    Workshop on Nonlinear Science, Chongqing, China, 3 August 2024. 
    (pdf file, 7.18 Mb)

  6. Energy transport and chaos in a one-dimensional disordered nonlinear stub lattice model
    Conference "Ergodicity in physical systems and beyond", Lincoln, UK, 10 July 2024. 
    (pdf file, 4.53 Mb)

  7. Quantifying chaos using Lagrangian descriptors 
    International conference "Applied Nonlinear Dynamical Systems and Chaos" (dedicated to the 65th birthday of Prof. Stephen Wiggins), Madrid, Spain, 2 July 2024.
    (pdf file, 7.35 Mb)

  8. Numerical methods of chaos detection
         International Conference "Days of Applied NOnlinearity and Complexity (DANOC)" (online event), Thessaloniki, Greece, 14 January 2024. 
    (pdf file, 11.49 Mb)

  9. Numerical methods of chaos detection
    20th Christmas Symposium of Physicists of the University of Maribor, Maribor, Slovenia, 14 December 2023.
    (pdf file, 11.51 Mb)

  10. Numerical approaches for investigating the chaotic behavior of multidimensional Hamiltonian systems 
    International Conference: "From the nonlinear dynamical systems theory to observational chaos", Toulouse, France, 9 October 2023.
    (pdf file, 5.13 Mb)

  11. Quantifying chaos using Lagrangian descriptors 
    4th International Conference on Integrable Systems and Nonlinear Dynamics (hybrid event – online participation), Yaroslavl, Russia, 27 September 2023.
    (pdf file, 4.05 Mb)

  12. Spatiotemporal chaos in disordered nonlinear lattices 
    Scientific Workshop: 30 years MPI-PKS, Dresden, Germany, 7 September 2023.
    (pdf file, 5.87 Mb)

  13. Chaos in Hamiltonian nonlinear lattices
    29th Summer School – Conference "Dynamical Systems and Complexity", Athens, Greece, 18 July 2023.
    (pdf file, 5.87 Mb)

  14. Numerical investigation of spatiotemporal chaos in nonlinear lattice models 
    International Conference on Statistical Physics 2023 (SigmaPhi 2023), Chania, Crete, Greece, 11 July 2023.
    (pdf file, 4.87 Mb)

  15. Numerical approaches for investigating the chaotic behavior of multidimensional Hamiltonian systems
    Seminar, Research Center for Astronomy and Applied Mathematics, Academy of Athens, Athens, Greece, 29 June 2023.
    (pdf file, 4.94 Mb)

  16. Numerical approaches for investigating the chaotic behavior of nonlinear disordered lattice models   
    Workshop "Multiple scattering in engineering and applied sciences", Isaac Newton Institute for Mathematical Sciences, Cambridge, UK, 26 May 2023.
    (pdf file, 5.46 Mb)

  17. Numerical investigation of spatiotemporal chaos in multidimensional Hamiltonian systems  
    Online seminar, Complex Systems and Applications Network (COSA-Net), Athens, Greece, 23 March 2023. 
    (pdf file, 4.87 Mb)

  18. Numerical investigation of spatiotemporal chaos in nonlinear lattice models 
    Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 10 November 2022.
    (pdf file, 5.14 Mb)

  19. Spatiotemporal chaos in multidimensional Hamiltonian systems
    Applied Mathematics Seminar, Institute of Mathematical Sciences (ICMAT), Madrid, Spain, 25 October 2022. 
    (pdf file, 5.10 Mb)

  20. Detecting chaos by the Smaller (SALI) and the Generalized (GALI) Alignment Index methods  
    Applied Mathematics Seminar, Institute of Mathematical Sciences (ICMAT), Madrid, Spain, 24 October 2022. 
    (pdf file, 5.74 Mb)

  21. Numerical investigation of spatiotemporal chaos in multidimensional Hamiltonian systems 
    2022 Conference on Nonlinear Science and Complexity (online event), Thessaloniki, Greece, 27 September 2022. 
    (pdf file, 4.67 Mb)

  22. Chaos in Hamiltonian systems  
    28th Summer School "Dynamical Systems and Complexity" (hybrid event – online participation), Chania, Crete, Greece, 19 July 2022. 
    (pdf file, 9.01 Mb)

  23. Numerical investigation of spatiotemporal chaos in multidimensional Hamiltonian systems 
    Satellite International Conference on Nonlinear Dynamics & Integrability, and Scientific School "Nonlinear Days" (hybrid event – online participation), Yaroslavl, Russia, 30 June 2022. 
    (pdf file, 5.16 Mb)

  24. Detecting chaos in Hamiltonian systems by the Smaller (SALI) and the Generalized (GALI) Alignment Index methods 
    Seminar, Department of Mechanics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Athens, Greece, 23 May 2022. 
    (pdf file, 5.74 Mb)

  25. The Smaller (SALI) and the Generalized (GALI) Alignment Index methods of chaos detection  
    Third International Conference on Integrable Systems & Nonlinear Dynamics, and School "Integrable and Nonlinear Days" (hybrid event – online participation), Yaroslavl, Russia, 5 October 2021. 
    (pdf file, 5.74 Mb)

  26. Chaotic dynamics of Hamiltonian systems 
    27th Summer School - Conference "Dynamical Systems and Complexity" (online event), Athens, Greece, 19 July 2021.
    (pdf file, 9.62 Mb)

  27. Chaotic behavior of disordered Hamiltonian systems 
    12th International Conference on Nonlinear Mathematics and Physics (NoLineal 20-21 – online event), Madrid, Spain, 1 July 2021. 
    (pdf file, 4.50 Mb)

  28. Chaotic wave packet propagation in disordered nonlinear lattices with one and two spatial dimensions 
    Second International Conference on Integrable Systems & Nonlinear Dynamics (hybrid event – online participation), Yaroslavl, Russia, 21 October 2020. 
    (pdf file, 5.64 Mb)

  29. Chaotic behavior of multidimensional Hamiltonian systems 
    International Conference "6th Dynamics Days Central Asia 2020" (online event), Nur-Sultan, Kazakhstan, 2 June 2020.  
    (pdf file, 5.87 Mb)

  30. The Smaller (SALI) and the Generalized (GALI) Alignment Index methods of chaos detection  
    International Workshop "Chaos Indicators, Phase Space and Chemical Reaction Dynamics" (online event), Bristol, United Kingdom, 5 May 2020. 
    (pdf file, 5.52 Mb)

  31. Nonlinear physics: Hamiltonian Chaos (Part B) 
    Postgraduate Course Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 13 November 2019. 
    (pdf file, 2.97 Mb)

  32. Chaotic wave packet spreading in one-dimensional disordered nonlinear lattices  
    Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 12 November 2019.
    (pdf file, 4.58 Mb)

  33. Nonlinear physics: Hamiltonian Chaos (Part A) 
    Postgraduate Course Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 6 November 2019. 
    (pdf file, 2.97 Mb)

  34. Chaotic behavior of multidimensional Hamiltonian systems: disordered lattices, granular chains and DNA models 
    6th PhD School/Conference on Mathematical Modeling of Complex Systems, Pescara, Italy, 8 July 2019. 
    (pdf file, 9.73 Mb)

  35. Chaotic wave packet spreading in one-dimensional disordered nonlinear lattices   
    Colloquium, Department of Mathematics, School of Science and Technology, Nazarbayev University, Nur Sultan city, Kazakhstan, 14 May 2019. 
    (pdf file, 6.53 Mb)

  36. Methods of chaos detection 
    Seminar, Quantum Gravity & Strings Laboratory, Department of Mathematics and Applied Mathematics, University of Cape Town, Cape Town, South Africa, 5 April 2019. 
    (pdf file, 6.32 Mb)

  37. Characteristics of chaos evolution in one-dimensional disordered nonlinear lattices 
    Online seminar, DST-NRF Centre of Excellence in Mathematical and Statistical Sciences (CoE-MaSS), University of the Witwatersrand, Johannesburg, South Africa, 1 February 2019.
    (pdf file, 4.09 Mb)

  38. Chaos and chaos detection techniques 
    Seminar, Center for Dynamics, Department of Mathematics, Technical University Dresden, Dresden, Germany, 7 December 2018. 
    (pdf file, 7.56 Mb)

  39. Characteristics of chaos evolution in one-dimensional disordered nonlinear lattices 
    AstroDynamics Group Seminar, Institute for Astronomy, University of Vienna, Vienna, Austria, 22 November 2018. 
    (pdf file, 4.17 Mb)

  40. Methods of chaos detection  
    International Workshop on Chaos-Fractals Theories and Applications, Chongqing, China, 12 October 2018. 
    (pdf file, 6.66 Mb)

  41. Chaos in disordered nonlinear lattices  
    International Conference on "Nonlinear Localization in Lattices", Spetses, Greece, 18 June 2018.
    (pdf file, 3.45 Mb)

  42. Hamiltonian Chaos  
    Colloquium Talk, Department of Mathematics and Applied Mathematics, University of Western Cape, Cape Town, South Africa, 15 May 2018.
    (pdf file, 3.12 Mb)

  43. Nonlinear physics: Hamiltonian Chaos  
    Postgraduate Course Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 30 January 2018.
    (pdf file, 3.19 Mb)

  44. Heterogeneity and Chaos: Granular Chains and DNA models 
    Seminar, Lohrmann Observatory, Technical University Dresden, Dresden, Germany, 18 December 2017.
    (pdf file, 4.13 Mb)

  45. Chaotic behavior of disordered nonlinear systems 
    Seminar, Institute of Theoretical Physics, Faculty of Physics, Technical University Dresden, Dresden, Germany, 15 December 2017.
    (pdf file, 5.42 Mb)

  46. Chaotic behavior of disordered nonlinear systems 
    Seminar on Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 9 November 2017.
    (pdf file, 5.68 Mb)

  47. Heterogeneity and Chaos: Granular Chains and DNA models 
    Seminar, Department of Materials Science, University of Patras, Patras, Greece, 8 November 2017.
    (pdf file, 4.25 Mb)

  48. Heterogeneity and Chaos: Granular Chains and DNA models 
    Seminar, Research Center for Astronomy and Applied Mathematics, Academy of Athens, Athens, Greece, 5 September 2017.
    (pdf file, 4.25 Mb)

  49. Chaotic behavior of disordered nonlinear systems 
    Seminar, Center for Theoretical Physics of Complex Systems, Institute for Basic Science, Daejeon, South Korea, 17 August 2017.
    (pdf file, 5.03 Mb)

  50. The Smaller (SALI) and the Generalized (GALI) Alignment Indices: Efficient methods of chaos detection 
    Seminar, Steklov Mathematical Institute of the Russian Academy of Sciences, Moscow, Russia, 19 June 2017. 
    (pdf file, 7.25 Mb)

  51. Chaos in disordered nonlinear Hamiltonian systems 
    International Scientific Workshop "Recent Advances in Hamiltonian and Nonholonomic Dynamics", Moscow, Russia, 15 June 2017. 
    (pdf file, 5.31 Mb)

  52. Numerical tools for investigating the dynamics of Hamiltonian systems 
    Seminar, Research Center for Astronomy and Applied Mathematics, Academy of Athens, Athens, Greece, 22 November 2016.
    (pdf file, 5.36 Mb)

  53. Efficient integration techniques for the long time simulation of the disordered discrete nonlinear Schrödinger equation
    59th Annual Congress of the South African Mathematical Society, Cape Town, South Africa, 4 November 2016.
    (pdf file, 4.36 Mb)

  54. The Smaller (SALI) and the Generalized (GALI) Alignment Indices: Efficient methods of chaos detection
    59th Annual Congress of the South African Mathematical Society, Cape Town, South Africa, 4 November 2016.
    (pdf file, 6.44 Mb)

  55. Efficient integration techniques for the long time simulation of the disordered discrete nonlinear Schrödinger equation 
    International Conference "Dynamics Days Latin America and the Caribbean 2016", Puebla, Mexico, 31 October 2016. 
    (pdf file, 3.81 Mb)

  56. Chaos in disordered nonlinear lattices 
    International Conference "Dynamics Days Latin America and the Caribbean 2016", Puebla, Mexico, 27 October 2016. 
    (pdf file, 3.62 Mb)

  57. Investigating the dynamics of a time-dependent barred galaxy model by the Smaller (SALI) and the Generalized (GALI) Alignment Index methods of chaos detection 
    International Conference "Dynamics Days Latin America and the Caribbean 2016", Puebla, Mexico, 24 October 2016. 
    (pdf file, 4.14 Mb)

  58. Symplectic longtime integration of the disordered discrete nonlinear Schrödinger equation 
    International Workshop on "Analysis and Applications of Localized Structures in Nonlinear Media", Leiden, The Netherlands, 30 August 2016. 
    (pdf file, 642 Kb)

  59. Numerical tools for investigating the dynamics of Hamiltonian systems  
    Seminar, Lohrmann Observatory, Technical University Dresden, Dresden, Germany, 8 July 2016.
    (pdf file, 5.68 Mb)

  60. Numerical methods of chaos detection 
    Seminar, Center for Dynamics, Department of Mathematics, Technical University Dresden, Dresden, Germany, 25 November 2015.
    (pdf file, 9.61 Mb)

  61. Chaotic behavior of disordered nonlinear lattices 
    Seminar, Lohrmann Observatory, Technical University Dresden, Dresden, Germany, 23 November 2015. 
    (pdf file, 6.75 Mb)

  62. Chaotic behavior of disordered nonlinear lattices 
    Seminar, Centre for Theoretical and Mathematical Physics (CTMP), University of Cape Town, Cape Town, South Africa, 28 August 2015.  
    (pdf file, 5.19 Mb)

  63. Numerical Methods for Hamiltonian Systems: Chaos Detection (Part B) 
    5th European PhD Summer School-Conference on "Mathematical Modeling of Complex Systems", Patras, Greece, 25 July 2015.
    (pdf file, 12.62 Mb)

  64. Numerical Methods for Hamiltonian Systems: Chaos Detection (Part A) 
    5th European PhD Summer School-Conference on "Mathematical Modeling of Complex Systems", Patras, Greece, 23 July 2015.
    (pdf file, 12.62 Mb)

  65. Chaotic behavior of disordered nonlinear lattices 
    Seminar, Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France, 23 June 2015.
    (pdf file, 5.19 Mb)

  66. Chaotic behavior of disordered nonlinear lattices 
    Seminar, Research Center for Astronomy and Applied Mathematics, Academy of Athens, Athens, Greece, 16 June 2015.
    (pdf file, 5.19 Mb)

  67. Numerical methods of chaos detection (Part B) 
    Seminar, Centre for Theoretical and Mathematical Physics (CTMP), University of Cape Town, Cape Town, South Africa, 8 May 2015.
    (pdf file, 11.87 Mb)

  68. Chaotic dynamics of disordered nonlinear lattices 
    International Workshop in Astronomy and Dynamics, Paris, France, 28 April 2015. 
    (pdf file, 1.56 Mb) 
    Video

  69. Numerical methods of chaos detection (Part A)  
    Seminar, Centre for Theoretical and Mathematical Physics (CTMP), University of Cape Town, Cape Town, South Africa, 24 April 2015.
    (pdf file, 11.87 Mb)

  70. High order three part split symplectic integrators. Application to the disordered discrete nonlinear Schrödinger equation  
    Fourth International Workshop on Statistical Mechanics and Dynamical Systems, Athens, Greece, 18 July 2014. 
    (pdf file, 3.86 Mb)

  71. Chaotic behavior of disordered nonlinear lattices  
    9th International Summer School / Conference "Let’s Face Chaos through Nonlinear Dynamics", Maribor, Slovenia, 3 July 2014.  
    (pdf file, 5.43 Mb)

  72. Teaching the new course MAM3085F: ‘Computing for Chemical Engineers’  
    Workshop of UCT's New Academic Practitioners’ Programme (NAPP), University of Cape Town, Cape Town, South Africa, 26 May 2014.  
    (pdf file, 944 Kb)

  73. Chaos in disordered nonlinear lattices  
    International Meeting "Perspectives in Nonlinear Dynamics" (A Satellite meeting of the STATPHYS 25 Conference), Hyderabad, India, 16 July 2013.  
    (pdf file, 2.82 Mb)

  74. The Smaller (SALI) and the Generalized (GALI) Alignment Index methods of chaos detection 
    International Workshop "Methods of Chaos Detection and Predictability: Theory and Applications (MCDPTA13)", Dresden, Germany, 18 June 2013. 
    (pdf file, 2.14 Mb)

  75. High order three part split symplectic integration schemes  
    Mini-Symposium "Complex Problems in Theoretical and Applied Mechanics" of the 10th HSTAM 2013 International Congress on Mechanics, Chania, Greece, 27 May 2013.
    (pdf file, 2.57 Mb)

  76. Symplectic integration methods for multidimensional Hamiltonian systems: Application to the disordered discrete nonlinear Schrödinger (DNLS) equation 
    Seminar, Lohrmann Observatory, Technical University Dresden, Dresden, Germany, 3 May 2013. 
    (pdf file, 3.19 Mb)

  77. Symplectic integration methods for multidimensional disordered nonlinear lattices   
    Seminar, Department of Mathematics and Applied Mathematics, University of Cape Town, Cape Town, South Africa, 4 December 2012.
    (pdf file, 4.98 Mb)

  78. Efficient integration schemes for the discrete nonlinear Schrödinger (DNLS) equation   
    Satellite Meeting "Critical Phenomena and Collective Behavior of Multi-Particle Systems" of the European Conference on Complex Systems (ECCS 12), Brussels, Belgium, 5 September 2012.
    (pdf file, 2.70 Mb)

  79. Efficient integration schemes for the discrete nonlinear Schrödinger (DNLS) equation   
    2nd Conference on Localized Excitations in Nonlinear Complex Systems (LENCOS’ 12), Sevilla, Spain, 10 July 2012. 
    (pdf file, 2.42 Mb)

  80. Chaos in disordered nonlinear lattices   
    Third Plenary Meeting "Complex Matter", Manchester, UK, 30 March 2012.  
    (pdf file, 4.02 Mb)

  81. Energy transport in disordered nonlinear chains 
    Seminar,Section of Astrophysics, Astronomy and Mechanics, Physics Department, Aristotle University of Thessaloniki, Thessaloniki, Greece, 11 January 2012.
    (pps file, 20.90 Mb)

  82. Energy transport in disordered nonlinear chains 
    Seminar, Institute for Theoretical Physics, Vienna University of Technology, Vienna, Austria, 18 November 2011.
    (pps file, 20.84 Mb)

  83. Energy localization in disordered nonlinear lattices  
    Second Plenary Meeting "Complex Matter", Patras, Greece, 21 July 2011.  
    (pdf file, 1.78 Mb)

  84. Efficient methods of chaos detection  
    8th International Summer School / Conference "Let’s Face Chaos through Nonlinear Dynamics", Maribor, Slovenia, 8 July 2011.  
    (pdf file, 9.45 Mb)

  85. Efficient methods of chaos detection: theory and applications  
    Seminar, Department of Mathematics and Applied Mathematics, University of Cape Town, Cape Town, South Africa, 25 May 2011.  
    (pdf file, 7.45 Mb)

  86. Energy transport in disordered nonlinear chains 
    8th Alexander von Humboldt Colloquium for Celestial Mechanics, Bad Hofgastein, Austria, 22 March 2011. 
    (pps file, 20.8 Mb)

  87. Algorithms for the integration of variational equations of multidimensional Hamiltonian systems
    Deutsche Physikalische Gesellschaft (DPG): 75th Annual Meeting of the DPG and DPG Spring Meeting, Dresden, Germany, 16 March 2011. 
    (pdf file, 447 Kb)

  88. Algorithms for the integration of variational equations of Hamiltonian systems  
    Seminar on Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 24 February 2011.
    (pdf file, 802 Kb)

  89. Numerical integration of variational equations  
    International Conference: "Nonlinear Dynamics and Complexity: Theory, Methods and Applications", Thessaloniki, Greece, 13 July 2010.
    (pdf file, 789 Kb)

  90. The Smaller (SALI) and the Generalized (GALI) Alignment Index Methods of Chaos Detection: Theory and Applications 
    International Focus Workshop: "Few Body Dynamics in Atoms, Molecules and Planetary Systems", Dresden, Germany, 1 July 2010.
    (pdf file, 4.5 Mb)

  91. Numerical integration of variational equations  
    Discrete Breathers Seminar, Max-Planck Institute for the Physics of Complex Systems, Dresden, Germany, 10 June 2010.
    (pdf file, 789 Kb)

  92. On the numerical integration of variational equations  
    American Institute of Mathematical Sciences’ (AIMS’) 8th International Conference on Dynamical Systems, Differential Equations and Applications, Dresden, Germany, 25 May 2010.
    (pdf file, 789 Kb)

  93. The Smaller (SALI) and the Generalized (GALI) Alignment Index Methods of Chaos Detection: Theory and Applications 
    AstroDynamics Group Seminar, Institute for Astronomy, University of Vienna, Vienna, Austria, 22 April 2010. 
    (pdf file, 5.7 Mb)

  94. The Smaller (SALI) and the Generalized (GALI) Alignment Index Methods of Chaos Detection: Theory and Applications 
    Dynamical Systems Group Seminar, Department of Mathematics, University of Namur, Namur, Belgium, 2 February 2010. 
    (pdf file, 4.5 Mb)

  95. The Generalized Alignment Index (GALI) Method of Chaos Detection: Theory and Applications  
    Lohrmann Observatory, Technical University Dresden, Germany, 15 January 2010.  
    (pdf file, 3.0 Mb)

  96. Spreading of wave packets in one dimensional disordered nonlinear Klein-Gordon chains    
    Condensed Matter Group Seminar, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany, 4 December 2009.
    (pps file, 22.0 Mb)

  97. On the numerical integration of variational equations   
    International Conference "CELMEC V: The Fifth International Meeting on Celestial Mechanics", San Martino al Cimino, Viterbo, Italy, 8 September 2009.
    (pdf file, 680 Kb)

  98. Spreading of wave packets in one dimensional disordered chains: Different dynamical regimes   
    International Conference "Dynamics Days Europe 2009", Göttingen, Germany, 3 September 2009. 
    (pps file, 20.6 Mb)

  99. Spreading of wave packets in one dimensional disordered chains   
    International Conference "Nonlinear Science and Complexity", Pescara, Italy, 29 July 2009.
    (pps file, 21.9 Mb)

  100. Spreading mechanism of wave packets in one dimensional nonlinear Klein-Gordon chains  
    Seminar of Complex Systems and Nonlinear Dynamics Group, Faculty of Natural Sciences, Chemnitz University of Technology, Chemnitz, Germany, 27 May 2009. 
    (pdf file, 998 Kb)

  101. Spreading of wave packets in one dimensional disordered chains - I. Different dynamical regimes  
    Deutsche Physikalische Gesellschaft (DPG) Spring Meeting of the Condensed Matter Section, Dresden, Germany, 23 March 2009. 
    (pdf file, 379 Kb)

  102. Spreading of wave packets in disordered Klein-Gordon chains     
    Postdoc Day, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany, 11 December 2008.

  103. Chaos detection techniques      
    21st International Conference "Nonlinear Science and Complexity", Athens, Greece, 26 July 2008.

  104. The Generalized Alignment Index (GALI) Method of Chaos Detection: Theory and Applications 
    International Conference on the Dynamics of Celestial Bodies, Litohoro, Greece, 26 June 2008.

  105. Detecting chaos, determining the dimensions of tori and predicting slow diffusion in Fermi-Pasta-Ulam lattices by the GALI method  
    7th Alexander von Humboldt Colloquium for Celestial Mechanics, Bad Hofgastein, Austria, 2 April 2008.

  106. Detecting Chaos by the Generalized Alignment Index (GALI) Method
    Scientific Jam Session, Max-Planck Institute for the Physics of Complex Systems, Dresden, Germany, 7 March 2008.

  107. Realistic estimations of the stability region of the Trojan asteroids 
    Workshop on Mathematical Aspects of Celestial Mechanics, Paris, France, 12 December 2007.

  108. Studying the dynamics of conservative dynamical systems by the Generalized Alignment Index (GALI) Method 
    Quantum and Classical Dynamics Seminar, Centre de Physique Théorique, Marseille, France, 3 October 2007.

  109. The Generalized Alignment Index (GALI) Method of Chaos Detection: Theory and Applications
    International Conference "Nonlinear Dynamics and Chaos: Advances and Perspectives", Aberdeen, Scotland, 19 September 2007.

  110. Beam Stability in Modern Light Sources via Frequency Map Analysis
    20th International Summer School/Conference "Nonlinear Science and Complexity", Patras, Greece, 19 July 2007.

  111. Studying the Dynamics of Conservative Dynamical Systems by the Generalized Alignment Index (GALI) Method
    Discrete Breathers Seminar, Max-Planck Institute for the Physics of Complex Systems, Dresden, Germany, 10 July 2007.

  112. Preliminary Ideas on the Nonlinear Dynamical Analysis of CLIC Damping Rings 
    Beam Dynamics Meeting, CERN, Geneva, Switzerland, 13 June 2007.

  113. Studying the dynamics of conservative dynamical systems by the Generalized Alignment Index (GALI) Method 
    Séminaire, Interdisciplinary Centre for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles, Brussels, Belgium, 14 May 2007.

  114. The Smaller (SALI) and the Generalized (GALI) Alignment Index Methods of Chaos Detection: Theory and Applications  
    Séminaires ‘Temps & Espace’, IMCCE – SYRTE, Observatoire de Paris, Paris, France, 2 April 2007.

  115. Mesure du chaos  
    Ecole Thématique du CNRS "Récentes Investigations en Dynamique des Corps Célestes dans les Systèmes Solaire et Extra-solaires", Bad Hofgastein, Austria, 26 March 2007. 
    (pdf file, 5.27 Mb)

  116. A new method for distinguishing chaos from order in Hamiltonian systems  
    19th Conference and Summer School "Complexity and Nonlinear Dynamics", Thessaloniki, Greece, 24 July 2006.

  117. The Generalized Alignment Index (GALI) method: Detecting order and chaos in conservative dynamical systems 
    American Institute of Mathematical Sciences’ (AIMS’) Sixth International Conference on Dynamical Systems, Differential Equations and Applications, Poitiers, France, 27 June 2006.

  118. Detecting chaos by the SALI method. Applications to simple accelerator models  
    Machine Division Seminar, European Synchrotron Radiation Facility (ESRF), Grenoble, France, 28 September 2005.

  119. The importance of periodic orbits in three-dimensional galactic bars and modern numerical techniques for tracing them  
    International Conference "CELMEC IV : A Meeting on Celestial Mechanics", San Martino al Cimino, Viterbo, Italy, 14 September 2005.

  120. Dynamical study of three-dimensional galactic bars: Periodic orbits and new techniques for tracing them   
    18th Summer School / Panhellenic Conference "Non linear Science and Complexity", Volos, Greece, 19 July 2005.

  121. The importance of periodic orbits in three-dimensional galactic bars and modern numerical techniques for tracing them  
    6th International Summer School / Conference "Let’s Face Chaos through Nonlinear Dynamics", Maribor, Slovenia, 7 July 2005.

  122. Smaller Alignment Index (SALI): An efficient method of chaos detection 
    Seminar of the Department of Astrophysics, Astronomy and Mechanics, University of Thessaloniki, Thessaloniki, Greece, 17 May 2005

  123. Particle Swarm Optimization (PSO) : An efficient method for tracing periodic orbits in 3D galactic potentials  
    Seminar of the Research Center for Astronomy and Applied Mathematics,  Academy of Athens, Athens, Greece, 16 November 2004

  124. A Numerical Study of Soliton Solutions of the Boussinesq Equation using Spectral methods    
    International Conference on Numerical Analysis and Applied Mathematics, Chalkida, Greece, 11 September 2004 

  125. Tracing Periodic Orbits in 3D Galactic Potentials by the Particle Swarm Optimization method     
    1st International Conference "From Scientific Computing to Computational Engineering", Athens, Greece, 9 September 2004.

  126. Numerical Solution of the Boussinesq Equation using Spectral Methods and Stability of Solitary Wave Propagation    
    1st International Conference "From Scientific Computing to Computational Engineering", Athens, Greece, 9 September 2004.

  127. Detecting Chaos by the Smaller Alignment Index (SALI) method    
    International Conference & Summer School: Complexity in Science and Society, Ancient Olympia, Greece, 22 July 2004. 
    (pdf file, 1.61 Mb)

  128. Detecting Chaos in Autonomous Hamiltonian Systems and Symplectic Maps   
    International Conference & Summer School: Complexity in Science and Society, Patras , Greece, 16 July 2004  
    (pdf file, 2.06 Mb) 

  129. Detecting order and chaos by the Smaller Alignment Index (SALI) method  
    Séminaire Astronomie et Systèmes Dynamiques, Institute de Mécanique Céleste, Observatoire de Paris, Paris, France, 20 November 2003.

  130. Smaller Alignment Index - SALI: A Simple Tool to Distinguish Chaotic from Ordered Motion
    NATO ASI "Chaotic Worlds: From Order to Disorder in Gravitational N-Body Dynamical Systems", Cortina d’ Ampezzo, Italy, 12 September 2003.

  131. Smaller Alignment Index method (SALI). A fast and efficient method to distinguish Chaos from Order in Conservative Dynamical Systems
    Graduate Seminar, Department of Mathematics, University of Patras, Patras, Greece, 12 December 2002.

  132. Detecting Ordered or Chaotic Motion in Hamiltonian Systems by the Smaller Alignment Index (SALI) Method
    International Workshop on Galaxies and Chaos, Theory and Observations, Athens, Greece, 18 September 2002.

  133. Indices for distinguishing between regular and chaotic dynamics
    15th Summer School / Panhellenic Conference "Non linear dynamics: Chaos and Complexity", Patras, Greece, 21 August 2002.

  134. Determining the ordered or chaotic nature of orbits in Hamiltonian systems by the Smaller Alignment Index (SALI) method 
    5th International Summer School / Conference "Let’s Face Chaos through Nonlinear Dynamics", Maribor, Slovenia, 6 July 2002. 

  135. Smaller alignment index (SALI): Detecting order and chaos in conservative dynamical systems
     GRACM 2002 - 4th GRACM Congress on Computational Mechanics, Patras, Greece, 27 June 2002.

  136. Smaller alignment index (SALI): Determining the ordered or chaotic nature of orbits in conservative dynamical systems 
    International Conference on Libration Point Orbits and Applications, Aiguablava, Spain, 13 June 2002.
    (pdf file, 743 Kb)

  137. Hamilton-Jacobi theory and the action-angle variables  
     CRANS Seminar series, Center for Research and Applications of Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 22 May 2002.

  138. The symplectic formalism of Hamilton’s equations and the Hamilton - Jacobi theory
    CRANS Seminar series, Center for Research and Applications of Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 17 April 2002.
    (pdf file, 4.47 Mb)

  139. Hamilton’s Equations of Motion
    CRANS Seminar series, Center for Research and Applications of Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 10 April 2002.
    (pdf file, 4.78 Mb)

  140. Lagrangian Mechanics and the Principle of Least Action
    CRANS Seminar series, Center for Research and Applications of Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 3 April 2002.
    (pdf file, 3.39 Mb)

  141. Local analysis of area preserving maps by topological degree theory
    Seminar of the Research Center for Astronomy and Applied Mathematics,  Academy of Athens, Athens, Greece, 5 March 2002

  142. Methods of studying the structure of the phase space in dynamical systems
    Department of Astrophysics, Astronomy and Mechanics, University of Athens, Athens, Greece, 15 November 2001.

  143. Study of the stability problem of the Trojan asteroids
    CRANS Seminar series, Center for Research and Applications of Nonlinear Systems, Department of Mathematics, University of Patras, Patras, Greece, 31 October 2001.

  144.  Study of the stability problem of the Trojan asteroids
    Division of Applied Analysis, Department of Mathematics, University of Patras, Patras, Greece, 31 October 2001.

  145. Alignment indices: a new method for determining the ordered or chaotic nature of orbits
    5th Hellenic Astronomical Conference, Fodele, Crete, Greece, 20 September 2001.

  146. Stability of periodic orbits in multi-dimensional Hamiltonian systems
    14th Summer School / Panhellenic Conference "Non linear dynamics: Chaos and Complexity", Patras, Greece, 23 July 2001.

  147. On the effective stability of the Trojan asteroids
    International Conference "CELMEC III : Third Meeting on Celestial Mechanics", Monte Porzio Catone, Italy, 22 June 2001.

  148. Stability of periodic orbits in high dimensional Hamiltonian systems
    Seminar of the Research Center for Astronomy and Applied Mathematics,  Academy of Athens, Athens, Greece, 24 April 2001

  149. Regions of effective stability in the restricted three body problem
    Seminar of the Research Center for Astronomy and Applied Mathematics,  Academy of Athens, Athens, Greece, 24 February 2000.

  150. Regions of effective stability in the restricted problem of three bodies
         4th Hellenic Astronomical Conference, Samos, Greece, 17 September 1999.

  151. Dynamical spectra in systems with three degrees of freedom
    4th Hellenic Astronomical Conference, Samos, Greece, 17 September 1999.

  152. Dynamical spectra and structures in the phase space of a four-dimensional symplectic map 
    12th Summer School / Panhellenic Conference "Non linear dynamics: Chaos and Complexity", Patras, Greece, 19 July 1999.

  153. Introduction to nonlinear dynamics   
    One-day course "Nonlinear dynamics, chaos, fractals, fractal kinetics in drug research", Athens, Greece, 1996.

  154. Study of a 4-D mapping 
    First Panhellenic Astronomical Meeting, Athens, Greece, September 1992.