| Publication | Date of Publication | Type |
|---|
| Bifurcations, symmetries and the notion of fixed subspace | 2021-12-27 | Paper |
| Exercises and Problems in Mathematical Methods of Physics | 2020-12-10 | Paper |
| Exercises and problems in mathematical methods of physics | 2018-04-11 | Paper |
| Symmetries of Hamiltonian Equations and Λ-Constants of Motion | 2017-05-30 | Paper |
| Partial symmetries and dynamical systems | 2016-09-05 | Paper |
| Side conditions for ordinary differential equations | 2015-05-20 | Paper |
| Generalized notions of symmetry of ODEs and reduction procedures | 2014-10-09 | Paper |
| Metodi matematici della Fisica | 2014-07-30 | Paper |
| Orbital reducibility and a generalization of lambda symmetries | 2013-08-19 | Paper |
| Dynamical systems and σ-symmetries | 2013-07-11 | Paper |
| On the connections between symmetries and conservation rules of dynamical systems | 2013-01-31 | Paper |
| A generalization of λ-symmetry reduction for systems of ODEs: σ-symmetries | 2012-09-19 | Paper |
| Addendum to: Symmetry classification of quasi-linear PDE's. II: An exceptional case | 2012-07-17 | Paper |
| Lambda-symmetries of Dynamical Systems, Hamiltonian and Lagrangian equations | 2011-12-01 | Paper |
| Reduction of systems of first-order differential equations via \(\Lambda \)-symmetries | 2011-09-06 | Paper |
| A Discussion on the Different Notions of Symmetry of Differential Equations | 2010-12-09 | Paper |
| Symmetries, weak symmetries and related solutions of the Grad-Shafranov equation | 2010-12-07 | Paper |
| TWISTED SYMMETRIES AND INTEGRABLE SYSTEMS | 2010-03-19 | Paper |
| Symmetry classification of quasi-linear PDE's containing arbitrary functions | 2009-09-11 | Paper |
| ON THE NOTION OF CONDITIONAL SYMMETRY OF DIFFERENTIAL EQUATIONS | 2008-08-26 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3509641 | 2008-07-02 | Paper |
| ON THE NOTION OF CONDITIONAL SYMMETRY OF DIFFERENTIAL EQUATIONS | 2008-05-06 | Paper |
| Noether theorem for μ-symmetries | 2007-10-19 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5476884 | 2006-07-20 | Paper |
| Applications of symmetry methods to the theory of plasma physics | 2006-07-04 | Paper |
| Symmetries and symmetry-invariant solutions of differential equations | 2006-04-26 | Paper |
| Symmetry properties of a system of Euler-type equations for magnetized plasmas | 2005-06-23 | Paper |
| "WEAK" SYMMETRIES AND ADAPTED VARIABLES FOR DIFFERENTIAL EQUATIONS | 2005-05-09 | Paper |
| On the relation between standard and -symmetries for PDEs | 2005-03-30 | Paper |
| Symmetry properties of some Euler-type equations in plasma physics | 2004-11-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4455778 | 2004-03-16 | Paper |
| Mel'nikov method revisited | 2003-02-24 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4440622 | 2003-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4330715 | 2002-11-03 | Paper |
| Chaos in black holes surrounded by electromagnetic fields | 2002-08-26 | Paper |
| Convergence of normal form transformations: The Role of symmetries | 2002-05-30 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4508327 | 2002-03-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4941048 | 2001-11-13 | Paper |
| An approach to Mel’nikov theory in celestial mechanics | 2001-08-30 | Paper |
| Partial Lie-point symmetries of differential equations | 2001-06-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4508337 | 2000-10-03 | Paper |
| Resonant bifurcations | 2000-08-28 | Paper |
| Symmetry and Perturbation Theory in Nonlinear Dynamics | 2000-04-04 | Paper |
| Nonhyperbolic homoclinic chaos | 2000-03-08 | Paper |
| Nonhyperbolic homoclinic chaos. | 2000-03-08 | Paper |
| Convergent normal forms of symmetric dynamical systems | 2000-03-08 | Paper |
| Normal forms, symmetry and linearization of dynamical systems | 1999-12-06 | Paper |
| Lie-point symmetries and nonlinear dynamical systems | 1998-03-05 | Paper |
| Normal forms and nonlinear symmetries | 1996-10-14 | Paper |
| On the convergence of normalizing transformations in the presence of symmetries | 1996-08-29 | Paper |
| Symmetries of dynamical systems and convergent normal forms | 1996-08-12 | Paper |
| Poincare normal forms and Lie point symmetries | 1995-10-05 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4284756 | 1994-04-17 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4026616 | 1993-02-21 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4015793 | 1992-11-23 | Paper |
| Lie point-symmetries for autonomous systems and resonance | 1992-09-27 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4010878 | 1992-09-27 | Paper |
| A nonlinear version of the equivalent bifurcation lemma | 1992-06-25 | Paper |
| Lie point-symmetries and Poincare normal forms for dynamical systems | 1990-01-01 | Paper |
| Effects of symmetry-breaking perturbations on the onset of the ``Smale- horseshoe chaos | 1989-01-01 | Paper |
| Periodic and wave-like solutions in nonlinear lattices | 1989-01-01 | Paper |
| Periodic solutions from symmetry | 1989-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5751201 | 1989-01-01 | Paper |
| A Hopf bifurcation breaking rotation symmetry | 1988-01-01 | Paper |
| Simple Criteria for Stable Bifurcating Periodic Solutions of O.D.E.’<scp>s</scp> | 1987-01-01 | Paper |
| Quaternionic-like bifurcation in the absence of symmetry | 1987-01-01 | Paper |
| Quaternionic-like bifurcation in the absence of symmetry | 1987-01-01 | Paper |
| Combining stability with symmetry properties in bifurcation problems | 1986-01-01 | Paper |
| Two ways of Hopf bifurcation with symmetry | 1986-01-01 | Paper |
| On the 'quaternionic' bifurcation | 1985-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3319446 | 1984-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3968200 | 1982-01-01 | Paper |
| Stability of spectral properties for sequences of abstract operators of the type of Sturm-Liouville | 1980-01-01 | Paper |
| A method from categories for introducing a general notion of convergence and limit | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3874733 | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3880990 | 1980-01-01 | Paper |
| Examples of Functor Adjunctions in Elementary Analysis | 1978-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4106401 | 1976-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4122125 | 1976-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4122126 | 1976-01-01 | Paper |
| On the spontaneous breakdown of compound symmetries | 1974-01-01 | Paper |
