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Publications by Konstantinos Efstathiou

K. Efstathiou, A. Giacobbe, P. Mardešić, and D. Sugny. Rotation forms and local Hamiltonian monodromy. Journal of Mathematical Physics, 58(2):022902, 2017.   doi
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K. Efstathiou and N. Martynchuk. Monodromy of Hamiltonian systems with complexity 1 torus actions. Journal of Geometry and Physics, 115:104 – 115, 2017. FDIS 2015: Finite Dimensional Integrable Systems in Geometry and Mathematical Physics.   doi
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N. Martynchuk and K. Efstathiou. Parallel Transport Along Seifert Manifolds and Fractional Monodromy. Communications in Mathematical Physics, 356(2):427–449, Dec 2017.   doi
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Konstantinos Efstathiou, Xia Liu, and Henk W. Broer. The Boundary-Hopf-Fold Bifurcation in Filippov Systems. SIAM Journal on Applied Dynamical Systems, 14(2):914–941, 2015.   url
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K. Efstathiou and H. W. Broer. Uncovering Fractional Monodromy. Comm. Math. Phys., 324:549–588, 2013.   url
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K. Efstathiou and A. Giacobbe. The topology associated to cusp singular points. Nonlinearity, 25(12):3409–3422, 2012.   doi
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L. Yu, K. Efstathiou, P. Isenberg, and T. Isenberg. Efficient Structure-Aware Selection Techniques for 3D Point Cloud Visualizations with 2DOF Input. IEEE Transactions on Visualization and Computer Graphics, 18(12):2245–2254, 2012.   doi
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D.G.M. Beersma, H.W. Broer, K. Efstathiou, K.A. Gargar, and I. Hoveijn. Pacer cell response to periodic Zeitgebers. Physica D, 19:1516–1527, 2011.   url
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E. Assémat, K. Efstathiou, M. Joyeux, and D. Sugny. Fractional bidromy in the vibrational spectrum of HOCl. Phys. Rev. Lett., 104(11):113002, 2010.   url
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H. W. Broer, K. Efstathiou, and O. V. Lukina. A geometric fractional monodromy. DCDS-S, 3(4):517–532, 2010.   url
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K. Efstathiou and D. A. Sadovskií. Normalization and global analysis of perturbations of the hydrogen atom. Rev. Mod. Phys., 82(3):2099–2154, 2010.   url
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K. Efstathiou and D. Sugny. Integrable Hamiltonian systems with swallowtails. J. Phys. A, 43(8):085216, 2010.   url
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K. Efstathiou, O.V. Lukina, and D.A. Sadovskií. Complete classification of qualitatively different perturbations of the hydrogen atom in weak near orthogonal electric and magnetic fields. J. Phys. A, 42(5):055209, 2009.   url
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H.W. Broer, K. Efstathiou, and E. Subramanian. Robustness of unstable attractors in arbitrarily sized pulse-coupled systems with delay. Nonlinearity, 21:13–49, 2008.   bib
H.W. Broer, K. Efstathiou, and E. Subramanian. Heteroclinic cycles between unstable attractors. Nonlinearity, 21:1385–1410, 2008.   bib
K. Efstathiou, O.V. Lukina, and D.A. Sadovskií. Most typical 1:2 resonant perturbation of the hydrogen atom by weak electric and magnetic fields. Phys. Rev. Lett., 101:253003, 2008.   bib
K. Efstathiou, D.A. Sadovski{\’\i}, and R.H. Cushman. Fractional monodromy in the $1:-2$ resonance. Adv. In Math., 209:241–273, 2007.   bib
K. Efstathiou and D.A. and Sadovski{\’\i}. Classification of perturbations of the hydrogen atom by small static electric and magnetic fields. Proc. Roy. Soc. London Ser. A., 463:1771–1790, 2007.   bib
K. Efstathiou. Metamorphoses of Hamiltonian Systems with Symmetries. LNM 1864, 2005.   bib