| Publication | Date of Publication | Type |
|---|
| A two-point boundary value problem associated with Hamiltonian systems on a cylinder | 2024-01-04 | Paper |
| Circularization in the damped Kepler problem | 2023-12-12 | Paper |
| Prime ends dynamics on invariant Peano continua | 2023-09-27 | Paper |
| Attractors of dissipative homeomorphisms of the infinite surface homeomorphic to a punctured sphere | 2023-04-14 | Paper |
| Recurrent motions in a piecewise linear oscillator | 2023-04-12 | Paper |
| An introduction to classical monodromy: Applications to molecules in external fields | 2023-03-17 | Paper |
| Variations on Lyapunov's stability criterion and periodic prey-predator systems | 2021-12-03 | Paper |
| Growth rates of orbits in non-periodic twist maps and a theorem by Neishtadt | 2021-06-28 | Paper |
| Generalized periodic orbits in some restricted three-body problems | 2021-04-27 | Paper |
| Regularized variational principles for the perturbed Kepler problem | 2021-04-23 | Paper |
| Some Rigorous Results on the 1:1 Resonance of the Spin-Orbit Problem | 2021-04-20 | Paper |
| An introduction to classical monodromy: applications to molecules in external fields | 2021-03-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5116748 | 2020-08-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3297866 | 2020-07-21 | Paper |
| Escaping orbits are rare in the quasi-periodic Fermi–Ulam ping-pong | 2020-03-10 | Paper |
| Stability of periodic solutions of the \(N\)-vortex problem in general domains | 2020-02-20 | Paper |
| A proof of Bertrand's theorem using the theory of isochronous potentials | 2019-11-12 | Paper |
| Smooth linearisation of planar periodic maps | 2019-09-30 | Paper |
| Functions with average and bounded motions of a forced discontinuous oscillator | 2019-08-15 | Paper |
| Periodic solutions and regularization of a Kepler problem with time-dependent perturbation | 2019-07-03 | Paper |
| Periodic Differential Equations in the Plane | 2019-04-18 | Paper |
| Periodic oscillators, isochronous centers and resonance | 2019-02-01 | Paper |
| Point-vortex stability under the influence of an external periodic flow | 2018-06-28 | Paper |
| First integrals for the Kepler problem with linear drag | 2017-11-16 | Paper |
| Almost surely recurrent motions in the Euclidean space | 2017-08-30 | Paper |
| A homotopical property of attractors | 2017-04-04 | Paper |
| Translation Arcs and Stability in Two Dimensions | 2017-01-12 | Paper |
| Symmetric periodic solutions in the Sitnikov problem | 2016-10-24 | Paper |
| Periodic solutions of a perturbed Kepler problem in the plane: from existence to stability | 2016-05-27 | Paper |
| Linearization of planar involutions in \(\mathcal C^1\) | 2015-09-14 | Paper |
| A forced pendulum equation without stable periodic solutions of a fixed period | 2015-03-03 | Paper |
| Dynamics of Kepler problem with linear drag | 2014-11-07 | Paper |
| Monotone twist maps and periodic solutions of systems of Duffing type | 2014-11-04 | Paper |
| Subharmonic solutions of the forced pendulum equation: a symplectic approach | 2014-08-01 | Paper |
| Stable periodic solutions in the forced pendulum equation | 2014-05-07 | Paper |
| Long-time stability estimates for the non-periodic Littlewood boundedness problem | 2013-08-05 | Paper |
| Some analytical results about periodic orbits in the restricted three body problem with dissipation | 2013-06-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4923008 | 2013-06-04 | Paper |
| Prevalence of Non-degenerate Periodic Solutions in the Forced Pendulum Equation | 2013-05-22 | Paper |
| Twist Mappings with Non-Periodic Angles | 2013-04-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4913600 | 2013-04-08 | Paper |
| Tribute to our friend and colleague Jean Mawhin | 2013-03-19 | Paper |
| A dynamical characterization of planar symmetries | 2013-02-05 | Paper |
| Attractors with irrational rotation number | 2012-07-11 | Paper |
| Periodic motions in forced problems of Kepler type | 2012-04-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3110160 | 2012-01-26 | Paper |
| Persistence of equilibria as periodic solutions of forced systems | 2012-01-16 | Paper |
| Complete orbits for twist maps on the plane: extensions and applications | 2011-11-25 | Paper |
| Attractors with vanishing rotation number | 2011-11-14 | Paper |
| Complete orbits for twist maps on the plane: the case of small twist | 2011-10-18 | Paper |
| The pendulum equation: from periodic to almost periodic forcings | 2011-09-01 | Paper |
| Linear motions in a periodically forced Kepler problem | 2011-07-22 | Paper |
| Asymptotic stability of forced oscillations emanating from a limit cycle | 2011-01-10 | Paper |
| Global bifurcations from the center of mass in the Sitnikov problem | 2010-09-22 | Paper |
| On the Families of Periodic Orbits of the Sitnikov Problem | 2009-04-30 | Paper |
| MAXIMUM PRINCIPLES AROUND AN EIGENVALUE WITH CONSTANT EIGENFUNCTIONS | 2009-02-10 | Paper |
| Trivial dynamics for a class of analytic homeomorphisms of the plane | 2008-10-30 | Paper |
| Complete orbits for twist maps on the plane | 2008-10-17 | Paper |
| Degree Theory and Almost Periodic Problems | 2008-09-12 | Paper |
| Location of fixed points and periodic solutions in the plane | 2008-07-29 | Paper |
| Retracts, fixed point index and differential equations | 2008-07-29 | Paper |
| Topological Translations and Nonlinear Resonance | 2007-08-24 | Paper |
| Unbounded motions in forced Newtonian equations | 2007-02-01 | Paper |
| COMPETITIVE SYSTEMS WITH THREE SPECIES AND PERIODIC COEFFICIENTS | 2006-11-01 | Paper |
| Almost periodic linear differential equations with non-separated solutions | 2006-08-14 | Paper |
| Stability and index of periodic solutions of a nonlinear telegraph equation | 2006-01-23 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5703449 | 2005-11-08 | Paper |
| Dynamics in the neighbourhood of a continuum of fixed points | 2005-10-20 | Paper |
| Optimal bounds for bifurcation values of a superlinear periodic problem | 2005-03-11 | Paper |
| Maximum principles for bounded solutions of the telegraph equation in space dimensions two and three and applications | 2005-02-16 | Paper |
| On the Number of Solutions to Semilinear Boundary Value Problems | 2004-11-05 | Paper |
| A variational method for the existence of bounded solutions of a sublinear forced oscillator | 2004-08-23 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4475004 | 2004-07-22 | Paper |
| Almost periodic equations and conditions of Ambrosetti-Prodi type | 2004-05-18 | Paper |
| A semilinear elliptic system with vanishing nonlinearities | 2004-02-23 | Paper |
| Periodic perturbations of an isochronous center. | 2003-12-09 | Paper |
| Almost periodic upper and lower solutions. | 2003-11-10 | Paper |
| A duality theorem for periodic solutions of a class of second order evolution equations | 2003-04-30 | Paper |
| On Littlewood’s problem for the asymmetric oscillator | 2003-03-18 | Paper |
| Massera's theorem for quasi-periodic differential equations | 2003-02-27 | Paper |
| A maximum principle for bounded solutions of the telegraph equation in space dimension three | 2003-01-13 | Paper |
| Differential equations with limit-periodic forcings | 2002-11-19 | Paper |
| PERIODIC SOLUTIONS OF FORCED OSCILLATORS WITH SEVERAL DEGREES OF FREEDOM | 2002-10-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2764205 | 2002-01-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4406520 | 2002-01-01 | Paper |
| Invariant Curves of Mappings with Averaged Small Twist | 2001-11-21 | Paper |
| Parabolic fixed points and stability criteria for nonlinear Hill's equation | 2001-05-02 | Paper |
| A maximum principle for bounded solutions of the telegraph equations and applications to nonlinear forcings | 2001-01-25 | Paper |
| DEGENERATE EQUATIONS OF PENDULUM-TYPE | 2000-11-14 | Paper |
| Counting periodic solutions of the forced pendulum equation | 2000-11-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4702471 | 2000-10-09 | Paper |
| Abstract competitive systems and orbital stability in $\mathbf{{\mathbb R}^3}$ | 2000-09-03 | Paper |
| Positively homogeneous equations in the plane. | 2000-08-16 | Paper |
| Non–continuation of the periodic oscillations of a forced pendulum in the presence of friction | 2000-07-10 | Paper |
| Boundedness in a Piecewise Linear Oscillator and a Variant of the Small Twist Theorem | 2000-06-22 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4948900 | 2000-04-27 | Paper |
| A maximum principle for periodic solutions of the telegraph equation | 2000-03-08 | Paper |
| Bounded solutions of second order semilinear evolution equations and applications to the telegraph equation | 1999-12-13 | Paper |
| The number of stable periodic solutions of time-dependent Hamiltonian systems with one degree of freedom | 1999-05-05 | Paper |
| An exclusion principle for periodic competitive systems in three dimensions | 1998-11-26 | Paper |
| Roots of unity and unbounded motions of an asymmetric oscillator | 1998-11-15 | Paper |
| A forced pendulum equation with many periodic solutions | 1998-11-15 | Paper |
| Nonexistence of invariant curves of mappings with small twist | 1998-08-16 | Paper |
| Unbounded solutions of semilinear equations at resonance | 1998-03-25 | Paper |
| Homeomorphisms of the disk with trivial dynamics and extinction of competitive systems | 1997-10-27 | Paper |
| Asymmetric Oscillators and Twist Mappings | 1997-04-21 | Paper |
| Resonance and non-resonance in a problem of boundedness | 1997-03-19 | Paper |
| Periodic solutions of a Newtonian equation: Stability by the third approximation | 1997-02-16 | Paper |
| The periodic predator-prey Lotka-Volterra model | 1996-11-14 | Paper |
| Nonexistence of periodic solutions of a complex Riccati equation | 1996-07-28 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4878888 | 1996-05-21 | Paper |
| Global asymptotic stability of a forced Newtonian system with dissipation | 1996-03-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4860451 | 1996-01-15 | Paper |
| On the number of positive periodic solutions for planar competing Lotka-Volterra systems | 1995-11-30 | Paper |
| Boundedness and global asymptotic stability of a forced oscillator | 1995-08-15 | Paper |
| The Stability of the Equilibrium of a Nonlinear Hill’s Equation | 1995-03-01 | Paper |
| A boundedness result of Landesman-Lazer type | 1995-02-01 | Paper |
| On the spectrum of some linear noncooperative elliptic systems with radial symmetry | 1995-02-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4320491 | 1995-02-01 | Paper |
| The index of Lyapunov stable fixed points in two dimensions | 1994-12-19 | Paper |
| A periodic prey-predator system | 1994-11-07 | Paper |
| Existence of asymptotically stable periodic solutions of a forced equation of Lienard type | 1994-08-15 | Paper |
| Critical growth for a superlinear elliptic problem in two dimensions | 1993-04-01 | Paper |
| The twist coefficient of periodic solutions of a time-dependent Newton's equation | 1993-01-17 | Paper |
| The First Interval of Stability of a Periodic Equation of Duffing Type | 1993-01-16 | Paper |
| Generic results for the existence of nondegenerate periodic solutions of some differential systems with periodic nonlinearities | 1992-06-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3972300 | 1992-06-25 | Paper |
| Nonexistence of radial solutions of two elliptic boundary value problems | 1990-01-01 | Paper |
| Stability of a periodic problem of Ambrosetti-Prodi type | 1990-01-01 | Paper |
| Topological Degree and Stability of Periodic Solutions for Certain Differential Equations | 1990-01-01 | Paper |
| A finite difference approach to the equations of age‐dependent population dynamics | 1989-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4204461 | 1989-01-01 | Paper |
| A nonlinear perturbation of \(d^ 2u/dx^ 2+\lambda u,u(- \infty)=u(+\infty)=0\) | 1988-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4729441 | 1987-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3791572 | 1987-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3795988 | 1987-01-01 | Paper |
| Doubly-Periodic Solutions of a Forced Semilinear Wave Equation | 1987-01-01 | Paper |
| A semi-discrete convergent scheme for a quasilinear hyperbolic equation | 1987-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3821008 | 1987-01-01 | Paper |
| [https://portal.mardi4nfdi.de/wiki/Publication:3710824 Existence of Solutions of x � � + x + g(x) = p(t), x(0) = 0 = x(π)] | 1986-01-01 | Paper |
| An asymptotic result in forced oscillations of pendulum-type equations | 1986-01-01 | Paper |
| Approximate solutions for the Cauchy problem for a semilinear hyperbolic system | 1985-01-01 | Paper |
| Periodic solutions of pendulum-type equations | 1985-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3744516 | 1985-01-01 | Paper |
| Landesman-Lazer conditions for problems with “one- side unbounded” nonlinearities | 1985-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3763636 | 1985-01-01 | Paper |
| Existence theorems for equations in normed spaces and boundary value problems for nonlinear vector ordinary differential equations | 1984-01-01 | Paper |
