C. Efthymiopoulos

发表

Dynamical models and the onset of chaos in space debris

G. Pucacco, A. Celletti, C. Efthymiopoulos, 2016, 1612.08849.

Structures induced by companions in galactic discs

C. Efthymiopoulos, G. Gravvanis, P. Kyziropoulos, 2016, 1611.04891.

Order in de Broglie–Bohm quantum mechanics

C. Efthymiopoulos, G. Contopoulos, N. Delis, 2012, 1203.5598.

Detection of Ordered and Chaotic Motion Using the Dynamical Spectra

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 1999 .

CHAOS IN RELATIVITY AND COSMOLOGY G.CONTOPOULOS',

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 2015 .

The speed of Arnold diffusion

Christos Efthymiopoulos, C. Efthymiopoulos, M. Harsoula, 2013 .

Analytical invariant manifolds near unstable points and the structure of chaos

C. Efthymiopoulos, G. Contopoulos, M. Katsanikas, 2014, 1404.7679.

Low-dimensional q-tori in FPU lattices: dynamics and localization properties

C. Efthymiopoulos, H. Christodoulidi, 2012, 1205.2573.

Special Features of Galactic Dynamics

C. Efthymiopoulos, N. Voglis, A. Mathematics, 2006, astro-ph/0610246.

Chaos in Relativity and Cosmology

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 1999 .

Particle Interactions with Single or Multiple 3D Solar Reconnecting Current Sheets

C. Efthymiopoulos, A. Anastasiadis, C. Gontikakis, 2008, 0806.4854.

High order normal form stability estimates for co-orbital motion

C. Efthymiopoulos, 2013 .

The speed of Arnold diffusion

C. Efthymiopoulos, M. Harsoula, 2013, 1302.1309.

Explicit Construction of First Integrals with Quasi-monomial Terms from the Painlev\'{e} Series

C. Efthymiopoulos, T. Bountis, T. Manos, 2008, 0801.1791.

Structures induced by companions in galactic discs

C. Efthymiopoulos, G. Gravvanis, P. Kyziropoulos, 2016, 1611.04891.

Faraway matter as a possible substitute for dark matter

C. Efthymiopoulos, C. Giordano, 2012 .

Special Features of Galactic Dynamics

C. Efthymiopoulos, N. Voglis, A. Mathematics, 2006, astro-ph/0610246.

The Phase Space Structure Around L4 in the Restricted Three-Body Problem

C. Efthymiopoulos, Z. Sándor, B. Érdi, 2000 .

Manifold spirals, disc–halo interactions, and the secular evolution inN-body models of barred galaxies

C. Efthymiopoulos, G. Gravvanis, P. Kyziropoulos, 2019, Monthly Notices of the Royal Astronomical Society.

Nekhoroshev stability at L4 or L5 in the elliptic‐restricted three‐body problem – application to Trojan asteroids

R. Dvorak, C. Efthymiopoulos, C. Lhotka, 2008 .

Optimized Nekhoroshev stability estimates for the Trojan asteroids with a symplectic mapping model of co-orbital motion

C. Efthymiopoulos, Z. Sándor, 2005 .

Nonconvergence of formal integrals: II. Improved estimates for the optimal order of truncation

A. Giorgilli, C. Efthymiopoulos, G. Contopoulos, 2004 .

Kolmogorov algorithm for isochronous Hamiltonian systems

C. Efthymiopoulos, Rita Mastroianni, 2022, Mathematics in Engineering.

Secondary resonances and the boundary of effective stability of Trojan motions

C. Efthymiopoulos, R. I. Paez, 2017, 1712.08460.

Formal Integrals and Nekhoroshev Stability in a Mapping Model for the Trojan Asteroids

C. Efthymiopoulos, 2005 .

Manifold spirals in barred galaxies with multiple pattern speeds

C. Efthymiopoulos, G. Contopoulos, M. Harsoula, 2019, Astronomy & Astrophysics.

A detailed dynamical model for inclination-only dependent lunisolar resonances. Effect on the ”eccentricity growth” mechanism

C. Efthymiopoulos, E. Legnaro, 2022, Advances in Space Research.

Secular dynamics in extrasolar systems with two planets in mutually inclined orbits

C. Efthymiopoulos, Rita Mastroianni, 2021, Proceedings of the International Astronomical Union.

Chaotic transport of navigation satellites.

C. Efthymiopoulos, K. Tsiganis, I. Gkolias, 2019, Chaos.

Mind the Galactic bar

C. Efthymiopoulos, 2017 .

A "spherical shell number density" model for violently relaxed $\vec{N}$-body systems

C. Efthymiopoulos, N. Voglis, 2001 .

The phase-space architecture in extrasolar systems with two planets in orbits of high mutual inclination

C. Efthymiopoulos, Rita Mastroianni, 2022, Celestial Mechanics and Dynamical Astronomy.

High order normal form stability estimates for co-orbital motion

C. Efthymiopoulos, 2013, Celestial Mechanics and Dynamical Astronomy.

The production of Tsallis entropy in the limit of weak chaos and a new indicator of chaoticity

N. Voglis, C. Efthymiopoulos, C. Efthymiopoulos, 2007, 0705.1459.

A parallel Self Mesh-Adaptive N-body method based on approximate inverses

C. K. Filelis-Papadopoulos, George A. Gravvanis, Christos Efthymiopoulos, 2017, The Journal of Supercomputing.

Origin of chaos near critical points of quantum flow.

C. Efthymiopoulos, G. Contopoulos, C Efthymiopoulos, 2009, Physical review. E, Statistical, nonlinear, and soft matter physics.

Angular dynamical spectra. A new method for determining frequencies, weak chaos and cantori

C. Efthymiopoulos, N. Voglis, 1998 .

L4 IN THE RESTRICTED THREE-BODY PROBLEM

C. Efthymiopoulos, S. Zsolt, 2001 .

Particle distributions and X-ray spectra in single or multiple solar current sheets

C. Efthymiopoulos, A. Anastasiadis, C. Gontikakis, 2007 .

Regular and chaotic dynamics in 3D reconnecting current sheets

C. Efthymiopoulos, A. Anastasiadis, C. Gontikakis, 2006 .

Particle dynamics in 3-D reconnecting current sheets in the solar atmosphere

C. Efthymiopoulos, A. Anastasiadis, C. Gontikakis, 2005 .

Invariant manifolds, phase correlations of chaotic orbits and the spiral structure of galaxies

C. Efthymiopoulos, N. Voglis, P. Tsoutsis, 2006, astro-ph/0607174.

Counterrotating Galaxies and Memory of Cosmological Initial Conditions

C. Efthymiopoulos, N. Voglis, M. Harsoula, 2000 .

Analytical forms of chaotic spiral arms

C. Efthymiopoulos, G. Contopoulos, M. Harsoula, 2016, 1603.09151.

Special features of galactic dynamics: Disc dynamics

C. Efthymiopoulos, 2010 .

Invariant manifolds and the response of spiral arms in barred galaxies

C. Efthymiopoulos, G. Contopoulos, C. Kalapotharakos, 2008, 0811.4521.

The coalescence of invariant manifolds and the spiral structure of barred galaxies

C. Efthymiopoulos, N. Voglis, P. Tsoutsis, 2008, 0804.2376.

Method for distinguishing between ordered and chaotic orbits in four-dimensional maps

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 1998 .

Stickiness and cantori

R. Dvorak, C. Efthymiopoulos, G. Contopoulos, 1997 .

Effective Power-Law Dependence of Lyapunov Exponents on the Central Mass in Galaxies

C. Efthymiopoulos, N. Delis, C. Kalapotharakos, 2015, 1501.05577.

ORDER AND CHAOS IN 3-D SYSTEMS

George Contopoulos, N. Voglis, C. Efthymiopoulos, 1999 .

Invariant Spectra of Dynamical Systems a

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 1995 .

Semi-analytic Computations of the Speed of Arnold Diffusion Along Single Resonances in A Priori Stable Hamiltonian Systems

Massimiliano Guzzo, Christos Efthymiopoulos, Rocio Isabel Paez, 2018, J. Nonlinear Sci..

Semi-analytic Computations of the Speed of Arnold Diffusion Along Single Resonances in A Priori Stable Hamiltonian Systems

C. Efthymiopoulos, M. Guzzo, R. I. Paez, 2019, Journal of Nonlinear Science.

The Trojan Problem from a Hamiltonian Perturbative Perspective

C. Efthymiopoulos, U. Locatelli, R. I. Paez, 2016 .

Anti-money laundering regulation of crypto assets in Europe’s smallest member state

C. Efthymiopoulos, C. Buttigieg, Abigail Attard, 2019, Law and Financial Markets Review.

Secondary resonances and the boundary of effective stability of Trojan motions

C. Efthymiopoulos, R. I. Paez, 2018, Celestial Mechanics and Dynamical Astronomy.

Trojan resonant dynamics, stability, and chaotic diffusion, for parameters relevant to exoplanetary systems

C. Efthymiopoulos, R. I. Paez, 2014, 1410.1407.

Chaos in de Broglie - Bohm quantum mechanics and the dynamics of quantum relaxation

Christos Efthymiopoulos, George Contopoulos, Athanasios C. Tzemos, 2017, 1703.09810.

Chaos in Bohmian quantum mechanics

Christos Efthymiopoulos, George Contopoulos, C. Efthymiopoulos, 2006 .

COMBINING PARTICLE ACCELERATION AND CORONAL HEATING VIA DATA-CONSTRAINED CALCULATIONS OF NANOFLARES IN CORONAL LOOPS

C. Efthymiopoulos, M. Georgoulis, A. Anastasiadis, 2013, 1305.5195.

Energy localization on q-tori, long-term stability, and the interpretation of Fermi-Pasta-Ulam recurrences.

C. Efthymiopoulos, T. Bountis, H Christodoulidi, 2009, Physical review. E, Statistical, nonlinear, and soft matter physics.

Arnold diffusion and Nekhoroshev theory

Christos Efthymiopoulos, Rocio Isabel Paez, C. Efthymiopoulos, 2021, 2111.03415.

Non-convergence of formal integrals of motion

Christos Efthymiopoulos, George Contopoulos, Antonio Giorgilli, 2003 .

Orbits and Integrals in Self-Consistent Systems

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 2002 .

The Third Integral in a Self-consistent Galactic Model

C. Efthymiopoulos, G. Contopoulos, N. Voglis, 2000 .

A Model Distribution Function for Violently Relaxed N-Body Systems

C. Efthymiopoulos, N. Voglis, 1996 .

Hamiltonian formulation of the spin-orbit model with time-varying non-conservative forces

Giuseppe Pucacco, Alessandra Celletti, Ioannis Gkolias, 2017, Commun. Nonlinear Sci. Numer. Simul..

Quantum Vortices and Trajectories in Particle Diffraction

Christos Efthymiopoulos, George Contopoulos, N. Delis, 2011, Int. J. Bifurc. Chaos.

Bohmian trajectories in an entangled two-qubit system

C. Efthymiopoulos, G. Contopoulos, A. C. Tzemos, 2019, Physica Scripta.

Origin of chaos near three-dimensional quantum vortices: A general Bohmian theory.

C. Efthymiopoulos, G. Contopoulos, A. C. Tzemos, 2018, Physical review. E.

Electron Orbits in Solar Reconnecting Current Sheets

C. Efthymiopoulos, A. Anastasiadis, C. Gontikakis, 2006 .

Resonant normal form and asymptotic normal form behaviour in magnetic bottle Hamiltonians

C. Efthymiopoulos, G. Contopoulos, M. Harsoula, 2015, 1501.07018.

Dynamical chaos in the Solar system

C. Efthymiopoulos, C. Giordano, 2012 .

Stages of dynamics in the Fermi-Pasta-Ulam system as probed by the first Toda integral

C. Efthymiopoulos, H. Christodoulidi, 2018, Mathematics in Engineering.

A deep dive into the 2g+h\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2g+h$$\end{document} resonance: separatrices,

C. Efthymiopoulos, I. Gkolias, E. Legnaro, 2021, Celestial Mechanics and Dynamical Astronomy.

Toward the design of a novel hybrid parallel N-body method in scope of modern cloud architectures

C. K. Filelis-Papadopoulos, George A. Gravvanis, Christos Efthymiopoulos, 2018, The Journal of Supercomputing.

Wavepacket approach to particle diffraction by thin targets: Quantum trajectories and arrival times

G. Contopoulos, C. Efthymiopoulos, C. Efthymiopoulos, 2011, 1111.7116.

Nodal points and the transition from ordered to chaotic Bohmian trajectories

Christos Efthymiopoulos, George Contopoulos, C. Efthymiopoulos, 2007, 0709.2038.

Chaos in Bohmian quantum mechanics

C. Efthymiopoulos, G. Contopoulos, 2006 .

Origin of chaos in 3-d Bohmian trajectories

C. Efthymiopoulos, G. Contopoulos, A. Tzemos, 2016, 1609.07069.

Relegation-free closed-form perturbation theory and the domain of secular motions in the restricted three-body problem

C. Efthymiopoulos, M. Rossi, 2023, Celestial Mechanics and Dynamical Astronomy.

Closed-form perturbation theory in the restricted three-body problem without relegation

C. Efthymiopoulos, I. Cavallari, 2022, Celestial Mechanics and Dynamical Astronomy.

Closed-form perturbation theory in the restricted three-body problem without relegation

C. Efthymiopoulos, I. Cavallari, 2021, Celestial Mechanics and Dynamical Astronomy.

Closed-form perturbation theory in the Sun-Jupiter restricted three body problem without relegation

Christos Efthymiopoulos, Irene Cavallari, C. Efthymiopoulos, 2021, Proceedings of the International Astronomical Union.

Characterization of the stability for trajectories exterior to Jupiter in the restricted three-body problem via closed-form perturbation theory

C. Efthymiopoulos, Mattia Rossi, 2021, Proceedings of the International Astronomical Union.

Semi-Analytical Estimates for the Orbital Stability of Earth’s Satellites

Alessandra Celletti, Christos Efthymiopoulos, Irene De Blasi, 2021, Journal of Nonlinear Science.

Chirikov and Nekhoroshev diffusion estimates: Bridging the two sides of the river

P. Cincotta, C. Efthymiopoulos, C. Giordano, 2013, 1310.3158.

Action-angle formalism for extreme mass ratio inspirals in Kerr spacetime

C. Efthymiopoulos, G. Lukes-Gerakopoulos, Viktor Skoup'y, 2023, Physical Review D.

On the connection between the Nekhoroshev theorem and Arnold diffusion

C. Efthymiopoulos, 2008, 0806.1703.

Appropriate SCF basis sets for orbital studies of galaxies and a ‘quantum-mechanical’ method to compute them

C. Efthymiopoulos, N. Voglis, C. Kalapotharakos, 2007, 0709.0799.

Dispersion velocity revisited

C. Efthymiopoulos, M. G. Parisi, O. M. Guilera, 2023, Celestial Mechanics and Dynamical Astronomy.

Analytical invariant manifolds near unstable points and the structure of chaos

C. Efthymiopoulos, G. Contopoulos, M. Katsanikas, 2014, Celestial Mechanics and Dynamical Astronomy.

Semi-analytical estimates for the chaotic diffusion in the Second Fundamental Model of Resonance. Application to Earth’s navigation satellites

C. Efthymiopoulos, E. Legnaro, M. Harsoula, 2023, Physica D: Nonlinear Phenomena.

Nekhoroshev estimates for the orbital stability of Earth’s satellites

Alessandra Celletti, Christos Efthymiopoulos, Irene De Blasi, 2021, Celestial Mechanics and Dynamical Astronomy.

New Hamiltonian expansions adapted to the Trojan problem

C. Efthymiopoulos, U. Locatelli, R. I. Paez, 2016, Celestial Mechanics and Dynamical Astronomy.

New Hamiltonian expansions adapted to the Trojan problem

C. Efthymiopoulos, U. Locatelli, R. I. Paez, 2016, 1606.04741.