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      "Authors": [
        { "Name": "Colin Guillarmou", "Webpage": "collaborators/guillarmou.html" }
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      "Title": "An introduction to geometric inverse problems",
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    {
      "Authors": [
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    {
      "Authors": [
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    {
      "Authors": [
        { "Name": "Sheila Sandon", "Webpage": "collaborators/sandon.html" }
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      "Title": "On flat translated chains of contactomorphisms of $\\mathbb{R}^{2n+1}$ and $\\mathbb{R}^{2n}\\times S^1$",
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    {
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        { "Name": "Massimiliano Berti", "Webpage": "collaborators/berti.html" }
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      "Title": "Equivariant critical point theory and bifurcation of 3D gravity-capillary Stokes waves",
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    {
      "Authors": [
        { "Name": "Alberto Abbondandolo", "Webpage": "collaborators/abbondandolo.html" }
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    {
      "Authors": [
        { "Name": "Mikko Salo", "Webpage": "collaborators/salo.html" },
        { "Name": "Leo Tzou", "Webpage": "collaborators/tzou.html" }
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      "Title": "A general support theorem for analytic double fibration transforms",
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    {
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        { "Name": "Erman Çineli", "Webpage": "collaborators/cineli.html" },
        { "Name": "Viktor L. Ginzburg", "Webpage": "collaborators/ginzburg.html" },
        { "Name": "Başak Z. Gürel", "Webpage": "collaborators/gurel.html" }
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      "Title": "Invariant sets and hyperbolic closed Reeb orbits",
      "Data": "Advances in Mathematics <b>484</b> (2026), Paper No. 110709",
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        { "Name": "Massimiliano Berti", "Webpage": "collaborators/berti.html" },
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      "Title": "Bifurcation of gravity-capillary Stokes waves with constant vorticity",
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      "DOI": "https://doi.org/10.1016/j.jde.2025.113753"
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    {
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        { "Name": "Olga Bernardi", "Webpage": "collaborators/bernardi.html" },
        { "Name": "Christian Lange", "Webpage": "collaborators/lange.html" }
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      "Title": "On the local maximizers of higher capacity ratios",
      "Data": "Annali della Scuola Normale Superiore di Pisa, Classe di Scienze (5) <b>27</b> (2026), no. 2, 1057-1108.",
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      "DOI": "https://doi.org/10.2422/2036-2145.202306_002"
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    {
      "Authors": [
        { "Name": "Gonzalo Contreras", "Webpage": "collaborators/contreras.html" }
      ],
      "Title": "Closed geodesics and the first Betti number",
      "Data": "Proceedings of the London Mathematical Society (3) <b>131</b> (2025), no. 3, Paper No. e70085",
      "Preprint": "preprints/betti.pdf",
      "DOI": "https://doi.org/10.1112/plms.70085"
    },
    {
      "Authors": [
        { "Name": "Marcelo Alves", "Webpage": "collaborators/alves.html" }
      ],
      "Title": "From curve shortening to flat link stability and Birkhoff sections of geodesic flows",
      "Data": "Journal de l'École polytechnique - Mathématiques <b>12</b> (2025), 801-851",
      "Preprint": "preprints/from_curve_shortening.pdf",
      "DOI": "https://doi.org/10.5802/jep.301"
    },
    {
      "Authors": [
        { "Name": "Erman Çineli", "Webpage": "collaborators/cineli.html" },
        { "Name": "Viktor L. Ginzburg", "Webpage": "collaborators/ginzburg.html" },
        { "Name": "Başak Z. Gürel", "Webpage": "collaborators/gurel.html" }
      ],
      "Title": "On the barcode entropy of Reeb flows",
      "Data": "Selecta Mathematica, New Series <b>31</b> (2025), no. 4, Paper No. 64",
      "Preprint": "preprints/barcode_entropy_Reeb.pdf",
      "DOI": "https://doi.org/10.1007/s00029-025-01062-5"
    },
    {
      "Authors": [
        { "Name": "Gonzalo Contreras", "Webpage": "collaborators/contreras.html" },
        { "Name": "Gerhard Knieper", "Webpage": "collaborators/knieper.html" },
        { "Name": "Benjamin Schulz", "Webpage": "collaborators/schulz.html" }
      ],
      "Title": "Surfaces of section for geodesic flows of closed surfaces",
      "Data": "Ergodic Theory and Dynamical Systems <b>45</b> (2025), no. 6, 1698-1733",
      "Preprint": "preprints/surfaces_of_section_geodesic_flows.pdf",
      "DOI": "https://doi.org/10.1017/etds.2024.86"
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    {
      "Authors": [
        { "Name": "Philippe Bolle", "Webpage": "collaborators/bolle.html" },
        { "Name": "Andrea Venturelli", "Webpage": "collaborators/venturelli.html" }
      ],
      "Title": "On potentials whose level sets are orbits",
      "Data": "Calculus of Variations and Partial Differential Equations <b>63</b> (2024), no. 7, Paper No. 187",
      "Preprint": "preprints/levi.pdf",
      "DOI": "https://doi.org/10.1007/s00526-024-02790-w"
    },
    {
      "Authors": [
        { "Name": "Viktor L. Ginzburg", "Webpage": "collaborators/ginzburg.html" },
        { "Name": "Başak Z. Gürel", "Webpage": "collaborators/gurel.html" }
      ],
      "Title": "Barcode entropy of geodesic flows",
      "Data": "to appear in Journal of the European Mathematical Society",
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      "DOI": "https://doi.org/10.4171/JEMS/1572"
    },
    {
      "Authors": [
        { "Name": "Gonzalo Contreras", "Webpage": "collaborators/contreras.html" }
      ],
      "Title": "Proof of the $C^2$-stability conjecture for geodesic flows of closed surfaces",
      "Data": "Duke Mathematical Journal <b>173</b> (2024), no. 2, 347-390",
      "Preprint": "preprints/stability.pdf",
      "DOI": "https://doi.org/10.1215/00127094-2023-0010"
    },
    {
      "Authors": [
        { "Name": "Marco Radeschi", "Webpage": "collaborators/radeschi.html" }
      ],
      "Title": "On the structure of Besse convex contact spheres",
      "Data": "Transactions of the American Mathematical Society <b>376</b> (2023), no. 3, 2125-2153",
      "Preprint": "preprints/besse_convex_spheres.pdf",
      "DOI": "https://doi.org/10.1090/tran/8836"
    },
    {
      "Authors": [
        { "Name": "Colin Guillarmou", "Webpage": "collaborators/guillarmou.html" },
        { "Name": "Leo Tzou", "Webpage": "collaborators/tzou.html" }
      ],
      "Title": "Asymptotically Euclidean metrics without conjugate points are flat",
      "Data": "The Journal of Geometric Analysis <b>33</b> (2023), no. 2, paper no. 37",
      "Preprint": "preprints/no_conjugate.pdf",
      "DOI": "https://doi.org/10.1007/s12220-022-01098-5"
    },
    {
      "Authors": [
        { "Name": "Gonzalo Contreras", "Webpage": "collaborators/contreras.html" }
      ],
      "Title": "Existence of Birkhoff sections for Kupka-Smale Reeb flows of closed contact 3-manifolds",
      "Data": "Geometric and Functional Analysis <b>32</b> (2022), no. 5, 951-979",
      "Preprint": "preprints/surfaces_of_section.pdf",
      "DOI": "https://doi.org/10.1007/s00039-022-00616-5"
    },
    {
      "Authors": [
        { "Name": "Alberto Abbondandolo", "Webpage": "collaborators/abbondandolo.html" },
        { "Name": "Christian Lange", "Webpage": "collaborators/lange.html" }
      ],
      "Title": "Higher systolic inequalities for 3-dimensional contact manifolds",
      "Data": "Journal de l'École polytechnique - Mathématiques <b>9</b> (2022), 807-851",
      "Preprint": "preprints/higher_systolic.pdf",
      "DOI": "https://doi.org/10.5802/jep.195"
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    {
      "Authors": [
        { "Name": "Guido De Philippis", "Webpage": "collaborators/de-philippis.html" },
        { "Name": "Michele Marini", "Webpage": "collaborators/marini.html" },
        { "Name": "Stefan Suhr", "Webpage": "collaborators/suhr.html" }
      ],
      "Title": "Closed geodesics on reversible Finsler 2-spheres",
      "Data": "Journal of Fixed Point Theory and Applications <b>24</b> (2022), no. 2, paper no. 19 (Claude Viterbo's 60th birthday Festschrift)",
      "Preprint": "preprints/rev_spheres.pdf",
      "DOI": "https://doi.org/10.1007/s11784-022-00962-9"
    },
    {
      "Authors": [
        { "Name": "Alberto Abbondandolo", "Webpage": "collaborators/abbondandolo.html" }
      ],
      "Title": "The monotonicity of the systole of convex Riemannian two-spheres",
      "Data": "Appendix of the paper <i>Relative Hofer–Zehnder capacity and positive symplectic homology</i> by <a href=\"collaborators/benedetti.html\">Gabriele Benedetti</a> and <a href=\"collaborators/kang.html\">Jungsoo Kang</a><br>Journal of Fixed Point Theory and Applications <b>24</b> (2022), no. 2, paper no. 44 (Claude Viterbo's 60th birthday Festschrift)",
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      "DOI": "https://doi.org/10.1007/s11784-022-00963-8"
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    {
      "Authors": [
        { "Name": "Stefan Suhr", "Webpage": "collaborators/suhr.html" }
      ],
      "Title": "A min-max characterization of Zoll Riemannian metrics",
      "Data": "Mathematical Proceedings of the Cambridge Philosophical Society <b>172</b> (2022), no. 3, 591-615",
      "Preprint": "preprints/zoll_minmax.pdf",
      "DOI": "https://www.doi.org/10.1017/S0305004121000311"
    },
    {
      "Authors": [
        { "Name": "Viktor L. Ginzburg", "Webpage": "collaborators/ginzburg.html" },
        { "Name": "Başak Z. Gürel", "Webpage": "collaborators/gurel.html" }
      ],
      "Title": "On the spectral characterization of Besse and Zoll Reeb flows",
      "Data": "Annales de l'Institut Henri Poincaré C, Analyse Non Linéaire <b>38</b> (2021), no. 3, 549-576",
      "Preprint": "preprints/equiv_besse.pdf",
      "DOI": "https://doi.org/10.1016/j.anihpc.2020.08.004"
    },
    {
      "Authors": [
        { "Name": "Colin Guillarmou", "Webpage": "collaborators/guillarmou.html" },
        { "Name": "Leo Tzou", "Webpage": "collaborators/tzou.html" }
      ],
      "Title": "Boundary and lens rigidity for non-convex manifolds",
      "Data": "American Journal of Mathematics <b>143</b> (2021), no. 2, 533-575",
      "Preprint": "preprints/non_convex.pdf",
      "DOI": "https://doi.org/10.1353/ajm.2021.0012"
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    {
      "Authors": [
        { "Name": "Luca Asselle", "Webpage": "collaborators/asselle.html" },
        { "Name": "Gabriele Benedetti", "Webpage": "collaborators/benedetti.html" }
      ],
      "Title": "Minimal boundaries in Tonelli Lagrangian systems",
      "Data": "International Mathematics Research Notices <b>2021</b>, no. 20, 15746-15787",
      "Preprint": "preprints/minimal_boundaries.pdf",
      "DOI": "https://doi.org/10.1093/imrn/rnz246"
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    {
      "Authors": [
        { "Name": "Daniel Cristofaro-Gardiner", "Webpage": "collaborators/cristofaro-gardiner.html" }
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      "Title": "The action spectrum characterizes closed contact 3-manifolds all of whose Reeb orbits are closed",
      "Data": "Commentarii Mathematici Helvetici <b>95</b> (2020), no. 3, 461-481.",
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      "DOI": "https://doi.org/10.4171/CMH/493"
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    {
      "Authors": [
        { "Name": "Luca Asselle", "Webpage": "collaborators/asselle.html" }
      ],
      "Title": "Waist theorems for Tonelli systems in higher dimensions",
      "Data": "Manuscripta Mathematica <b>163</b> (2020), no. 1-2, 185-199",
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      "DOI": "https://doi.org/10.1007/s00229-019-01154-5"
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    {
      "Authors": [
        { "Name": "Luca Asselle", "Webpage": "collaborators/asselle.html" }
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      "Title": "On Tonelli periodic orbits with low energy on surfaces",
      "Data": "Transactions of the American Mathematical Society <b>371</b> (2019), no. 5, 3001-3048",
      "Preprint": "preprints/tonelli.pdf",
      "DOI": "https://doi.org/10.1090/tran/7185"
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    {
      "Authors": [
        { "Name": "Stefan Suhr", "Webpage": "collaborators/suhr.html" }
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      "Title": "A characterization of Zoll Riemannian metrics on the 2-sphere",
      "Data": "Bulletin of the London Mathematical Society <b>50</b> (2018), 997-1006",
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      "DOI": "https://doi.org/10.1112/blms.12200",
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    {
      "Authors": [
        { "Name": "Luca Asselle", "Webpage": "collaborators/asselle.html" }
      ],
      "Title": "Closed geodesics with local homology in maximal degree on non-compact manifolds",
      "Data": "Differential Geometry and its Applications <b>58</b> (2018), 17-51",
      "Preprint": "preprints/max_degree.pdf",
      "DOI": "https://doi.org/10.1016/j.difgeo.2017.11.007",
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    {
      "Authors": [
        { "Name": "Colin Guillarmou", "Webpage": "collaborators/guillarmou.html" }
      ],
      "Title": "Marked boundary rigidity for surfaces",
      "Data": "Ergodic Theory and Dynamical Systems <b>38</b> (2018), no. 4, 1459-1478",
      "Preprint": "preprints/marked_rigidity.pdf",
      "DOI": "https://doi.org/10.1017/etds.2016.94"
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    {
      "Authors": [
        { "Name": "Leonardo Macarini", "Webpage": "collaborators/macarini.html" }
      ],
      "Title": "Isometry-invariant geodesics and the fundamental group, II",
      "Data": "Advances in Mathematics <b>308</b> (2017), 671-698",
      "Preprint": "preprints/inv_geod_p1_II.pdf",
      "DOI": "https://doi.org/10.1016/j.aim.2016.12.023"
    },
    {
      "Authors": [
        { "Name": "A. Abbondandolo", "Webpage": "collaborators/abbondandolo.html" },
        { "Name": "L. Asselle", "Webpage": "collaborators/asselle.html" },
        { "Name": "G. Benedetti", "Webpage": "collaborators/benedetti.html" },
        { "Name": "I. A. Taimanov", "Webpage": "collaborators/taimanov.html" }
      ],
      "Title": "The multiplicity problem for periodic orbits of magnetic flows on the 2-sphere",
      "Data": "Advanced Nonlinear Studies <b>17</b> (2017), no. 1, 17-30",
      "Preprint": "preprints/sphere.pdf",
      "DOI": "https://doi.org/10.1515/ans-2016-6003"
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    {
      "Authors": [
        { "Name": "Luca Asselle", "Webpage": "collaborators/asselle.html" }
      ],
      "Title": "On the existence of infinitely many closed geodesics on non-compact manifolds",
      "Data": "Proceedings of the American Mathematical Society <b>145</b> (2017), no. 6, 2689-2697",
      "Preprint": "preprints/non_compact.pdf",
      "DOI": "http://dx.doi.org/10.1090/proc/13398"
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    {
      "Authors": [
        { "Name": "A. Abbondandolo", "Webpage": "collaborators/abbondandolo.html" },
        { "Name": "L. Macarini", "Webpage": "collaborators/macarini.html" },
        { "Name": "G. P. Paternain", "Webpage": "collaborators/paternain.html" }
      ],
      "Title": "Infinitely many periodic orbits of exact magnetic flows on surfaces for almost every subcritical energy level",
      "Data": "Journal of the European Mathematical Society <b>19</b> (2017), no. 2, 551-579",
      "Preprint": "preprints/magnetic.pdf",
      "DOI": "http://dx.doi.org/10.4171/JEMS/674"
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    {
      "Authors": [],
      "Title": "The Morse index of Chaperon's generating families",
      "Data": "Publicaciones Matemáticas del Uruguay <b>16</b> (2016), 81-125",
      "Preprint": "preprints/morse.pdf",
      "DOI": "http://pmu.uy/pmu16/pmu16-0081.pdf"
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    {
      "Authors": [
        { "Name": "Alfonso Sorrentino", "Webpage": "collaborators/sorrentino.html" }
      ],
      "Title": "Remarks on the symplectic invariance of Aubry-Mather sets",
      "Data": "Comptes Rendus de l'Académie des Sciences de Paris - Séries I <b>354</b> (2016), no. 4, 419-423",
      "Preprint": "preprints/remarks_aubry_mather.pdf",
      "DOI": "http://dx.doi.org/10.1016/j.crma.2016.01.001"
    },
    {
      "Authors": [],
      "Title": "Isometry-invariant geodesics and the fundamental group",
      "Data": "Mathematische Annalen <b>362</b> (2015), no. 1-2, 265-280",
      "Preprint": "preprints/inv_geod_p1.pdf",
      "DOI": "http://dx.doi.org/10.1007/s00208-014-1113-8"
    },
    {
      "Authors": [],
      "Title": "On the multiplicity of isometry-invariant geodesics on product manifolds",
      "Data": "Algebraic & Geometric Topology <b>14</b> (2014), 135-156",
      "Preprint": "preprints/inv_geod.pdf",
      "DOI": "http://dx.doi.org/10.2140/agt.2014.14.135"
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    {
      "Authors": [],
      "Title": "Symplectically degenerate maxima via generating functions",
      "Data": "Mathematische Zeitschrift <b>275</b> (2013), no. 3-4, 715-739",
      "Preprint": "preprints/symp_deg_max.pdf",
      "DOI": "http://dx.doi.org/10.1007/s00209-013-1157-6"
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    {
      "Authors": [],
      "Title": "On the multiplicity of non-iterated periodic billiard trajectories",
      "Data": "Pacific Journal of Mathematics <b>252</b> (2011), no. 1, 181-205",
      "Preprint": "preprints/billiards.pdf",
      "DOI": "http://dx.doi.org/10.2140/pjm.2011.252.181"
    },
    {
      "Authors": [
        { "Name": "Peter Albers", "Webpage": "collaborators/albers.html" }
      ],
      "Title": "Periodic bounce orbits of prescribed energy",
      "Data": "International Mathematics Research Notices <b>2011</b>, no. 14, 3289-3314",
      "Preprint": "preprints/bounce.pdf",
      "DOI": "http://dx.doi.org/10.1093/imrn/rnq193"
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    {
      "Authors": [],
      "Title": "The Lagrangian Conley conjecture",
      "Data": "Commentarii Mathematici Helvetici <b>86</b> (2011), no. 1, 189-246",
      "Preprint": "preprints/conley.pdf",
      "DOI": "http://dx.doi.org/10.4171/CMH/222"
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    {
      "Authors": [
        { "Name": "Alessandra Cherubini", "Webpage": "collaborators/cherubini.html" }
      ],
      "Title": "On the Decidability of the Word Problem for Amalgamated Free Products of Inverse Semigroups",
      "Data": "Semigroup Forum <b>76</b> (2008), no. 2, 309-329",
      "Preprint": "preprints/amalgam.pdf",
      "DOI": "http://dx.doi.org/10.1007/s00233-007-9030-8"
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      "Title": "Critical point theory for Lagrangian systems",
      "Data": "Progress in Mathematics, vol. 293, Birkhäuser",
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      "DOI": "https://doi.org/10.1007/978-3-0348-0163-8",
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    {
      "Authors": [],
      "Title": "Periodic orbits in symplectic dynamics",
      "Data": "Habilitation thesis, <a href=\"http://www.ens-lyon.fr/\">École normale supérieure de Lyon</a>",
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      "DOI": null
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    {
      "Authors": [
        { "Name": "Alberto Abbondandolo", "Webpage": "collaborators/abbondandolo.html" }
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      "Title": "Periodic orbits of Tonelli Lagrangian systems",
      "Data": "Ph.D. thesis, <a href=\"https://www.unipi.it/\">Università di Pisa</a><br>advisor: ",
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    {
      "Authors": [
        { "Name": "Alessandra Cherubini", "Webpage": "https://www.mate.polimi.it/?view=pp&id=20&lg=it#ann" }
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      "Title": "Applicazioni della teoria degli automi al problema della parola in semigruppi inversi",
      "Data": "Master thesis, <a href=\"https://www.polimi.it/\">Politecnico di Milano</a><br>advisor: ",
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  "Surveys": [
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        { "Name": "Erman Çineli", "Webpage": "collaborators/cineli.html" },
        { "Name": "Viktor L. Ginzburg", "Webpage": "collaborators/ginzburg.html" },
        { "Name": "Başak Z. Gürel", "Webpage": "collaborators/gurel.html" }
      ],
      "Title": "Topics in Symplectic Dynamics: Barcode Entropy",
      "Data": "<a href=\"https://webusers.imj-prg.fr/~marco.mazzucchelli/events/2025/CIME/\">CIME summer school on Symplectic dynamics and topology</a>, 2025",
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