| Publication | Date of Publication | Type |
|---|
| Generalized common index jump theorem with applications to closed characteristics on star-shaped hypersurfaces and beyond | 2024-02-20 | Paper |
| The stability of the solar system: History and current states | 2022-03-21 | Paper |
| The Rabinowitz minimal periodic solution conjecture | 2022-01-13 | Paper |
| Index Iteration Theory for Brake Orbit Type Solutions and Applications | 2021-09-29 | Paper |
| Index iteration theories for periodic orbits: old and new | 2020-09-17 | Paper |
| Linear stability of the elliptic relative equilibrium with (1 + n)-gon central configurations in planar n-body problem | 2020-01-31 | Paper |
| Concentrated steady vorticities of the Euler equation on 2-d domains and their linear stability | 2019-03-14 | Paper |
| On bifurcation of eigenvalues along convex symplectic paths | 2019-01-08 | Paper |
| The existence of two non-contractible closed geodesics on every bumpy Finsler compact space form | 2018-08-16 | Paper |
| Non-hyperbolic closed characteristics on non-degenerate star-shaped hypersurfaces in \(\mathbb{R}^{2n}\) | 2018-02-15 | Paper |
| Solutions of the generalized Lennard-Jones system | 2018-02-13 | Paper |
| Maslov-type indices and linear stability of elliptic Euler solutions of the three-body problem | 2017-12-01 | Paper |
| The reduction of the linear stability of elliptic Euler-Moulton solutions of the \(n\)-body problem to those of 3-body problems | 2017-06-27 | Paper |
| Irrationally elliptic closed characteristics on symmetric compact star-shaped hypersurfaces in \(\mathbf{R}^{4}\) | 2017-04-20 | Paper |
| The enhanced common index jump theorem for symplectic paths and non-hyperbolic closed geodesics on Finsler manifolds | 2017-03-01 | Paper |
| A new index theory for \(\mathrm{GL}^{+}(2)\)-paths with applications to asymptotically linear systems | 2017-02-17 | Paper |
| Two closed geodesics on compact simply connected bumpy Finsler manifolds | 2016-11-18 | Paper |
| Geometric characterizations for variational minimizing solutions of charged 3-body problems | 2016-05-12 | Paper |
| The existence of two closed characteristics on every compact star-shaped hypersurface in \(\mathbb{R}^{4}\) | 2016-03-09 | Paper |
| Resonance identities and stability of symmetric closed characteristics on symmetric compact star-shaped hypersurfaces | 2016-02-22 | Paper |
| Periodic solutions for the generalized anisotropic Lennard-Jones Hamiltonian | 2016-01-14 | Paper |
| Open problem 2: Questions on the stability problem of periodic solutions in the \(N\)-body problem | 2016-01-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3463435 | 2016-01-14 | Paper |
| Two closed geodesics on \(\mathbb RP^{2n+1}\) with a bumpy Finsler metric | 2015-11-09 | Paper |
| A New Class of Problems in the Calculus of Variations | 2015-10-30 | Paper |
| Topological structure of non-contractible loop space and closed geodesics on real projective spaces with odd dimensions | 2015-05-13 | Paper |
| Symmetric closed characteristics on symmetric compact convex hypersurfaces in \(\mathbb{R}^8\) | 2015-04-22 | Paper |
| Equivalence of linear stabilities of elliptic triangle solutions of the planar charged and classical three-body problems | 2015-04-01 | Paper |
| Non-hyperbolic Closed Characteristics on Symmetric Compact Convex Hypersurfaces in R2n | 2014-10-15 | Paper |
| Linear stability of elliptic Lagrangian solutions of the planar three-body problem via index theory | 2014-08-15 | Paper |
| Resonance identities for closed characteristics on compact star-shaped hypersurfaces in \(\mathbf R^{2n}\) | 2014-08-06 | Paper |
| A new class of problems in the calculus of variations | 2014-05-07 | Paper |
| Resonance identity for symmetric closed characteristics on symmetric convex Hamiltonian energy hypersurfaces and its applications | 2014-02-13 | Paper |
| ω-Index Theory and Linear Stability of Elliptic Lagrangian Solutions of the Classical Three-Body Problem | 2013-01-02 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2888968 | 2012-06-04 | Paper |
| Index iteration theory for symplectic paths and multiple periodic solution orbits | 2011-10-12 | Paper |
| Functions on Tori with Minimal Number of Critical Points and Rotation Type Solutions of Spatially Periodic Hamiltonian Systems | 2011-09-23 | Paper |
| The index growth and multiplicity of closed geodesics | 2010-09-06 | Paper |
| The index quasi-periodicity and multiplicity of closed geodesics | 2010-08-09 | Paper |
| Morse concavity for closed geodesics | 2010-07-08 | Paper |
| Linear stability of some symplectic matrices | 2010-06-23 | Paper |
| The existence of two closed geodesics on every Finsler 2-sphere | 2010-01-22 | Paper |
| Multiple closed geodesics on 3-spheres | 2009-06-30 | Paper |
| Morse Indices of Closed Geodesics on Katok's 2-Spheres | 2008-09-25 | Paper |
| Collection of problems proposed at International Conference on Variational Methods | 2008-09-08 | Paper |
| Stability of closed geodesics on Finsler 2-spheres | 2008-09-01 | Paper |
| Multiplicity and stability of closed geodesics on bumpy Finsler 3-spheres | 2008-04-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5439827 | 2008-02-11 | Paper |
| Resonance identity, stability, and multiplicity of closed characteristics on compact convex hypersurfaces | 2007-09-27 | Paper |
| Multiple closed geodesics on Riemannian 3-spheres | 2007-08-17 | Paper |
| Multiple closed geodesics on bumpy Finsler \(n\)-spheres | 2007-02-12 | Paper |
| Closed characteristics on non-degenerate star-shaped hypersurfaces in \(\mathbb R^{2n}\) | 2006-09-22 | Paper |
| Multiplicity and stability of closed geodesics on Finsler 2-spheres | 2006-09-13 | Paper |
| Multiple brake orbits in bounded convex symmetric domains | 2006-08-04 | Paper |
| Homology Classes of the Circle Space on Spheres and the Discontinuity of Deformations | 2005-04-29 | Paper |
| Collinear central configurations and singular surfaces in the mass space | 2005-04-18 | Paper |
| Stable closed characteristics on partially symmetric convex hypersurfaces | 2005-01-11 | Paper |
| Closed characteristics on asymmetric convex hypersurfaces in \(\mathbb{R}^{2n}\) and the corresponding pinching conditions | 2004-11-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4475003 | 2004-07-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4466547 | 2004-06-08 | Paper |
| Geometric characterizations for variational minimization solutions of the 3-body problem | 2004-05-18 | Paper |
| Admissible Shapes of 4-Body Non-collinear Relative Equilibria | 2004-03-07 | Paper |
| Closed characteristics on partially symmetric compact convex hypersurfaces in \(\mathbb R^{2n}\). | 2004-01-26 | Paper |
| Criterion for \(\text{SL}(2,\mathbb{Z})\)-matrix to be conjugate to its inverse | 2003-04-14 | Paper |
| Infinitely many periodic solution orbits of autonomous Lagrangian systems on tori | 2003-04-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4796963 | 2003-04-07 | Paper |
| Index theory for symplectic paths with applications | 2003-01-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3154211 | 2002-11-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4549285 | 2002-10-08 | Paper |
| Multiplicity of closed characteristics on symmetric convex hypersurfaces in \(\mathbb{R}^{2n}\) | 2002-09-17 | Paper |
| Closed characteristics on compact convex hypersurfaces in \(\mathbb{R}^{2n}\) | 2002-09-08 | Paper |
| Differentiable structure of \(\omega\)-subsets of symplectic groups | 2002-08-15 | Paper |
| Iterated index formulae for closed geodesics with applications. | 2002-08-15 | Paper |
| Four-body central configurations with some equal masses | 2002-06-10 | Paper |
| Multiple periodic points of the Poincaré map of Lagrangian systems on tori | 2002-05-01 | Paper |
| Combined effects of singular and superlinear nonlinearities in some singular boundary value problems. | 2002-04-22 | Paper |
| Geometric characterizations for variational minimization solutions of the 3-body problem | 2002-03-04 | Paper |
| An optimal increasing estimate of the iterated Maslov-type indices | 2002-02-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2767253 | 2002-01-29 | Paper |
| Precise iteration formulae of the Maslov-type index theory and ellipticity of closed characteristics | 2001-10-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2711954 | 2001-05-06 | Paper |
| Maslov-type index theory for symplectic paths and spectral flow. II | 2001-04-23 | Paper |
| Maslov-type index theory for symplectic paths and spectral flow. I | 2001-04-23 | Paper |
| Normal forms of symplectic matrices | 2001-04-20 | Paper |
| A Maslov-type index theory for symplectic paths | 2001-03-27 | Paper |
| Iteration inequalities of the Maslov-type index theory with applications | 2001-02-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4486822 | 2000-06-29 | Paper |
| Periodic solutions for a class of nonautonomous Hamiltonian systems | 2000-06-21 | Paper |
| Geometric characterization for variational minimization solutions of the 3-body problem with fixed energy | 2000-04-13 | Paper |
| Hyperbolic characteristics on star-shaped hypersurfaces | 2000-04-03 | Paper |
| On the index theories for second order Hamiltonian systems | 2000-03-31 | Paper |
| Topological structures of \(\omega\)-subsets in symplectic groups | 2000-02-07 | Paper |
| Bott formula of the Maslov-type index theory | 1999-11-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4261617 | 1999-09-29 | Paper |
| Hyperbolic closed characteristics on compact convex smooth hypersurfaces in \(\mathbb{R}^{2n}\) | 1999-07-05 | Paper |
| Indexing domains of instability for Hamiltonian systems | 1999-06-29 | Paper |
| On the minimal period for the periodic solutions problem of nonlinear Hamiltonian systems | 1998-03-05 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4237799 | 1998-01-01 | Paper |
| The iteration formula of the Maslov-type index theory with applications to nonlinear Hamiltonian systems | 1997-05-27 | Paper |
| Geodesics in the compactly supported Hamiltonian diffeomorphism group | 1996-03-17 | Paper |
| Nonlinear oscillations for classical Hamiltonian systems with bi-even subquadratic potentials | 1995-07-17 | Paper |
| The minimal period problem of classical Hamiltonian systems with even potentials | 1995-01-08 | Paper |
| The minimal period problem of periodic solutions for autonomous superquadratic second order Hamiltonian systems | 1994-10-10 | Paper |
| A note on the existence of multiple brake orbits | 1994-05-24 | Paper |
| An unbounded solution of a superlinear Duffing's equation | 1992-06-28 | Paper |
| The structure of the singular symplectic matrix set | 1992-06-27 | Paper |
| Maslov-type index, degenerate critical points, and asymptotically linear Hamiltonian systems | 1992-06-25 | Paper |
| On the density of the range for some nonlinear operators | 1992-06-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5758509 | 1990-01-01 | Paper |
| Periodic solutions of superquadratic Hamiltonian systems with bounded forcing terms | 1990-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3210942 | 1990-01-01 | Paper |
| Multiple Solutions of Perturbed Superquadratic Second Order Hamiltonian Systems | 1989-01-01 | Paper |
