| Publication | Date of Publication | Type |
|---|
| Superintegrable systems with spin and second-order tensor and pseudo-tensor integrals of motion | 2023-02-10 | Paper |
| Continuous Symmetries and Integrability of Discrete Equations | 2023-01-31 | Paper |
| Cylindrical type integrable classical systems in a magnetic field | 2023-01-12 | Paper |
| Two-dimensional superintegrable systems from operator algebras in one dimension | 2022-11-24 | Paper |
| Superintegrable systems with spin and second-order (pseudo)tensor integrals of motion | 2021-04-15 | Paper |
| New infinite families of $N$th-order superintegrable systems separating in Cartesian coordinates | 2020-04-25 | Paper |
| Higher Order Quantum Superintegrability: A New “Painlevé Conjecture” | 2019-12-03 | Paper |
| Corrigendum: Fourth order superintegrable systems separating in polar coordinates. I. Exotic potentials (J. Phys. A: Math. Theor. 50 495206) | 2019-10-07 | Paper |
| General Nth-order superintegrable systems separating in polar coordinates | 2019-02-28 | Paper |
| Fourth-order superintegrable systems separating in polar coordinates. II. Standard potentials | 2019-02-28 | Paper |
| Conformally invariant elliptic Liouville equation and its symmetry-preserving discretization | 2019-02-04 | Paper |
| Lie point symmetries and ODEs passing the Painlevé test | 2018-08-15 | Paper |
| Spherical type integrable classical systems in a magnetic field | 2018-05-30 | Paper |
| Fifth-order superintegrable quantum systems separating in Cartesian coordinates: Doubly exotic potentials | 2018-03-14 | Paper |
| Fourth order superintegrable systems separating in polar coordinates. I. Exotic potentials | 2018-01-18 | Paper |
| Fourth order superintegrable systems separating in Cartesian coordinates I. Exotic quantum potentials | 2017-09-08 | Paper |
| Symmetry Preserving Discretization of SL(2,R) Invariant Equations | 2017-05-30 | Paper |
| Structure preserving discretizations of the Liouville equation and their numerical tests | 2015-10-27 | Paper |
| GeneralNth order integrals of motion in the Euclidean plane | 2015-10-27 | Paper |
| Three-dimensional superintegrable systems in a static electromagnetic field | 2015-10-26 | Paper |
| The Korteweg–de Vries equation and its symmetry-preserving discretization | 2015-02-20 | Paper |
| The adjoint equation method for constructing first integrals of difference equations | 2015-02-20 | Paper |
| Lie-point symmetries of the discrete Liouville equation | 2015-02-06 | Paper |
| Lie group analysis of a generalized Krichever-Novikov differential-difference equation | 2014-11-06 | Paper |
| First integrals of difference equations which do not possess a variational formulation | 2014-08-29 | Paper |
| Superintegrable systems with spin induced by co-algebra symmetry | 2014-04-17 | Paper |
| Classification and Identification of Lie Algebras | 2014-03-18 | Paper |
| Third-order superintegrable systems separable in parabolic coordinates | 2013-11-29 | Paper |
| Classical and quantum superintegrability with applications | 2013-11-19 | Paper |
| First integrals of ordinary difference equations beyond Lagrangian methods | 2013-11-07 | Paper |
| Lie groups and numerical solutions of differential equations: Invariant discretization versus differential approximation | 2013-04-25 | Paper |
| Infinite families of superintegrable systems separable in subgroup coordinates | 2012-12-17 | Paper |
| Superintegrable systems with spin and second-order integrals of motion | 2012-12-17 | Paper |
| Symmetries of the continuous and discrete Krichever-Novikov equation | 2012-06-26 | Paper |
| Solvable Lie algebras with Borel nilradicals | 2012-04-10 | Paper |
| Contact transformations for difference schemes | 2012-03-05 | Paper |
| P∞ Algebra of KP, Free Fermions and 2-Cocycle in the Lie Algebra of Pseudodifferential Operators | 2011-12-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3172280 | 2011-10-05 | Paper |
| Are there contact transformations for discrete equations? | 2011-07-25 | Paper |
| A nonseparable quantum superintegrable system in 2D real Euclidean space | 2011-05-18 | Paper |
| Systems of ordinary differential equations with nonlinear superposition principles | 2010-09-13 | Paper |
| Lie point symmetries of differential–difference equations | 2010-08-11 | Paper |
| An infinite family of superintegrable deformations of the Coulomb potential | 2010-06-18 | Paper |
| Third-order superintegrable systems separating in polar coordinates | 2010-05-17 | Paper |
| Periodic orbits for an infinite family of classical superintegrable systems | 2010-01-27 | Paper |
| Integrable and superintegrable systems with spin in three-dimensional Euclidean space | 2009-12-14 | Paper |
| Invariant difference schemes and their application to sl(2\hbox{,}\, \mathbb {R}) invariant ordinary differential equations | 2009-11-24 | Paper |
| An infinite family of solvable and integrable quantum systems on a plane | 2009-07-10 | Paper |
| Symmetry reduction and superintegrable Hamiltonian systems | 2009-06-18 | Paper |
| All solvable extensions of a class of nilpotent Lie algebras of dimensionnand degree of nilpotencyn− 1 | 2009-03-20 | Paper |
| Heisenberg algebra, umbral calculus and orthogonal polynomials | 2009-01-23 | Paper |
| Erratum: Polynomial Poisson Algebras for Classical Superintegrable Systems with a Third Order Integral of Motion [J. Math. Phys. 48, 012902 (2007)] | 2008-12-08 | Paper |
| A class of superintegrable systems of Calogero type | 2008-10-14 | Paper |
| Superintegrable systems with spin in two- and three-dimensional Euclidean spaces | 2008-08-19 | Paper |
| Superintegrable systems with third-order integrals of motion | 2008-08-08 | Paper |
| Reduction of superintegrable systems: the anisotropic harmonic oscillator | 2008-07-07 | Paper |
| Discrete systems related to some equations of the Painlevé-Gambier classification | 2007-08-08 | Paper |
| A class of superintegrable systems of Calogero type | 2007-05-16 | Paper |
| Integrable and superintegrable systems with spin | 2007-05-16 | Paper |
| Quasiseparation of variables in the Schrödinger equation with a magnetic field | 2007-05-16 | Paper |
| Polynomial Poisson algebras for classical superintegrable systems with a third-order integral of motion | 2007-05-16 | Paper |
| Difference schemes with point symmetries and their numerical tests | 2006-07-13 | Paper |
| Continuous symmetries of difference equations | 2006-03-13 | Paper |
| Discretization of partial differential equations preserving their physical symmetries | 2005-12-16 | Paper |
| Subgroup Type Coordinates and the Separationof Variables in Hamilton-Jacobi and Schrödinger Equations | 2005-09-05 | Paper |
| CONTRACTION AND INTERBASES EXPANSIONS ON N-SPHERE | 2005-08-02 | Paper |
| Umbral calculus, difference equations and the discrete Schrödinger equation | 2005-06-30 | Paper |
| A class of solvable Lie algebras and their Casimir invariants | 2005-04-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4661953 | 2005-03-30 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4657353 | 2005-03-14 | Paper |
| Equivalence classes and symmetries of the variable coefficient Kadomtsev-Petviashvili equation | 2005-01-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4832186 | 2005-01-04 | Paper |
| Integrable and superintegrable quantum systems in a magnetic field | 2004-12-15 | Paper |
| Superintegrability in a two-dimensional space of nonconstant curvature | 2004-12-14 | Paper |
| Separation of variables and subgroup bases on n-dimensional hyperboloids | 2004-12-14 | Paper |
| Superintegrability with third-order integrals in quantum and classical mechanics | 2004-12-14 | Paper |
| Weak transversality and partially invariant solutions | 2004-12-14 | Paper |
| Superintegrable systems in Darboux spaces | 2004-12-14 | Paper |
| Discrete matrix Riccati equations with superposition formulas | 2004-08-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4462816 | 2004-05-18 | Paper |
| Graf's addition theorem obtained from SO(3) contraction | 2004-01-04 | Paper |
| Separation of variables and Lie algebra contractions. Applications to special functions | 2003-10-08 | Paper |
| Graded contractions of the Lie algebrae(2, 1) | 2003-05-19 | Paper |
| Generalized Kadomtsev-Petviashvili equation with an infinite-dimensional symmetry algebra | 2003-02-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4793490 | 2003-02-11 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2781689 | 2003-02-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2781710 | 2002-11-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2781709 | 2002-08-24 | Paper |
| Lie point symmetries and commuting flows for equations on lattices | 2002-08-15 | Paper |
| Group foliation and non-invariant solutions of the heavenly equation | 2002-06-11 | Paper |
| Contractions of Lie Algebras and Separation of Variables. | 2002-02-27 | Paper |
| Successive Refinements of Gradings and Graded Contractions of sl(3,C) | 2002-02-27 | Paper |
| Superintegrable systems in quantum mechanics and classical Lie theory | 2002-02-26 | Paper |
| Exact solvability of superintegrable systems | 2002-02-26 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2736456 | 2001-09-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2736538 | 2001-09-10 | Paper |
| Integrable and superintegrable Hamiltonian systems in magnetic fields | 2001-08-30 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4517606 | 2001-08-07 | Paper |
| Maximal Abelian subalgebras of complex Euclidean Lie algebras | 2001-07-02 | Paper |
| Subgroups of the similitude group of three-dimensional Minkowski space | 2001-07-02 | Paper |
| Time-dependent realization of the infinite-dimensional hydrogen algebra | 2001-06-20 | Paper |
| Contractions of Lie algebras and the separation of variables: interbase expansions | 2001-06-10 | Paper |
| Solutions of nonlinear differential and difference equations with superposition formulas | 2001-03-28 | Paper |
| Invariant solutions of hydrodynamic-type equations | 2001-03-05 | Paper |
| Lie point symmetry preserving discretizations for variable coefficient Korteweg-de Vries equations | 2001-02-27 | Paper |
| HUYGENS' PRINCIPLE AND SEPARATION OF VARIABLES | 2000-12-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4513135 | 2000-11-07 | Paper |
| Point symmetries of generalized Toda field theories | 2000-08-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4491307 | 2000-07-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4491369 | 2000-07-25 | Paper |
| Lie group formalism for difference equations | 2000-05-08 | Paper |
| Discretizing families of linearizable equations. | 2000-03-08 | Paper |
| Point symmetries of generalized Toda field theories: II. Symmetry reduction | 2000-01-01 | Paper |
| Bases for representations of quantum algebras | 2000-01-01 | Paper |
| Singularity analysis, balance equations and soliton solution of the nonlocal complex Ginzburg-Landau equation | 1999-11-29 | Paper |
| Solutions of (2+1)-dimensional spin systems | 1999-11-21 | Paper |
| Contractions of Lie algebras and separation of variables. The n-dimensional sphere | 1999-11-21 | Paper |
| Group invariant solutions for the N=2 super Korteweg–de Vries equation | 1999-11-21 | Paper |
| Symmetries of discrete dynamical systems involving two species | 1999-11-21 | Paper |
| Nonlinear superposition formulas based on imprimitive group action | 1999-11-21 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4250129 | 1999-11-10 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4264077 | 1999-09-21 | Paper |
| Maximal abelian subalgebras of \(e(p,q)\) algebras | 1999-09-02 | Paper |
| Lie-theoretical generalization and discretization of the Pinney equation | 1999-04-19 | Paper |
| Maximal Abelian subgroups of the isometry and conformal groups of Euclidean and Minkowski spaces | 1999-02-22 | Paper |
| Contractions of Lie algebras and separation of variables | 1998-12-02 | Paper |
| Discretizing families of linearizable equations | 1998-08-05 | Paper |
| Grading refinements in the contractions of Lie algebras and their invariants | 1998-06-11 | Paper |
| Algebra of pseudodifferential operators and symmetries of equations in the Kadomtsev–Petviashvili hierarchy | 1998-06-02 | Paper |
| Superposition formulas for pseudounitary matrix Riccati equations | 1997-07-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4718100 | 1997-04-21 | Paper |
| Analysis and applications of the symmetry group of the multidimensional three-wave resonant interaction problem | 1997-01-28 | Paper |
| On the solutions of the CP1 model in (2+1) dimensions | 1997-01-22 | Paper |
| Symmetries of discrete dynamical systems | 1996-11-26 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4893973 | 1996-09-26 | Paper |
| Classical and quantum integrable systems in \(\widetilde{\mathfrak gl}(2)^{+*}\) and separation of variables | 1996-08-04 | Paper |
| Generalized Casimir operators of solvable Lie algebras with Abelian nilradicals | 1996-02-08 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4845203 | 1996-01-28 | Paper |
| Harmonics on hyperspheres, separation of variables and the Bethe ansatz | 1995-11-26 | Paper |
| On the relation between weak and strong invariance of differential equations | 1995-11-22 | Paper |
| Solvable Lie algebras with Abelian nilradicals | 1995-06-19 | Paper |
| Continuous Symmetries of Differential-Difference Equations | 1995-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4280899 | 1994-08-22 | Paper |
| Symmetries and conditional symmetries of a non-relativistic Chern-Simons system | 1994-05-25 | Paper |
| Representations of the quantum algebra suq(2) on a real two-dimensional sphere | 1994-04-19 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4284769 | 1994-03-24 | Paper |
| Spherical Functions for the Quantum Group su_q(2) | 1994-03-01 | Paper |
| On the symmetry groups of the intrinsic generalized wave and sine–Gordon equations | 1994-02-06 | Paper |
| Symmetries and conditional symmetries of differential-difference equations | 1993-12-06 | Paper |
| Solvable Lie algebras with Heisenberg ideals | 1993-10-31 | Paper |
| Evolution equations invariant under two-dimensional space–time Schrödinger group | 1993-09-05 | Paper |
| Symmetries of variable coefficient Korteweg–de Vries equations | 1993-06-29 | Paper |
| Partially invariant solutions of a class of nonlinear Schrodinger equations | 1993-05-16 | Paper |
| Partially invariant solutions of nonlinear Klein–Gordon and Laplace equations | 1993-04-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4028087 | 1993-03-28 | Paper |
| Maximal abelian subalgebras of pseudoorthogonal Lie algebras | 1992-09-27 | Paper |
| Graded contractions of sl(3,C) | 1992-06-28 | Paper |
| Symmetry properties and solutions of nonlinear dispersive thin-film equations in three dimensions | 1992-06-28 | Paper |
| Nonclassical symmetry reductions for the Kadomtsev-Petviashvili equation | 1991-01-01 | Paper |
| Maximal abelian subalgebras of complex orthogonal Lie algebras | 1990-01-01 | Paper |
| Group theoretical analysis of dispersive long wave equations in two space dimensions | 1990-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3202583 | 1990-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3350053 | 1990-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3361292 | 1990-01-01 | Paper |
| Nonlinear equations invariant under the Poincaré, similitude, and conformal groups in two-dimensional space-time | 1990-01-01 | Paper |
| Group theoretical analysis of a rotating shallow liquid in a rigid container | 1989-01-01 | Paper |
| Non-classical symmetry reduction: example of the Boussinesq equation | 1989-01-01 | Paper |
| Symmetries of the self-dual Einstein equations. I. The infinite-dimensional symmetry group and its low-dimensional subgroups | 1989-01-01 | Paper |
| On the identification of a Lie algebra given by its structure constants. I: Direct decompositions, Levi decompositions, and nilradicals | 1988-01-01 | Paper |
| Lie algebras under constraints and non-bijective canonical transformations | 1988-01-01 | Paper |
| PASCAL programs for identification of Lie algebras. II: SPLIT - a program to decompose parameter-free and parameter-dependent Lie algebras into direct sums | 1987-01-01 | Paper |
| Exact solutions of the multidimensional classical φ6-field equations obtained by symmetry reduction | 1987-01-01 | Paper |
| Nonlinear equations with superposition formulas and the exceptional group G2. II. Classification of the equations | 1987-01-01 | Paper |
| Dynamical invariance algebra of the Hartmann potential | 1987-01-01 | Paper |
| On the integrability and perturbations of systems of ODE's with nonlinear superposition principles | 1986-01-01 | Paper |
| Complex parabolic subgroups of \(G_ 2\) and nonlinear differential equations | 1986-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3478891 | 1986-01-01 | Paper |
| On the integrability of systems of nonlinear ordinary differential equations with superposition principles | 1986-01-01 | Paper |
| Are all the equations of the Kadomtsev–Petviashvili hierarchy integrable? | 1986-01-01 | Paper |
| Nonlinear equations with superposition formulas and the exceptional group G2. I. Complex and real forms of g2 and their maximal subalgebras | 1986-01-01 | Paper |
| Separation of Variables for the Hamilton–Jacobi Equation on Complex Projective Spaces | 1985-01-01 | Paper |
| Integrable Hamiltonian systems with velocity-dependent potentials | 1985-01-01 | Paper |
| Superposition laws for solutions of differential matrix Riccati equations arising in control theory | 1985-01-01 | Paper |
| Nonlinear equations with superposition principles and the theory of transitive primitive Lie algebras | 1984-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3684878 | 1984-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3695425 | 1984-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5185049 | 1984-01-01 | Paper |
| Classification of systems of nonlinear ordinary differential equations with superposition principles | 1984-01-01 | Paper |
| Comments on superposition rules for nonlinear coupled first-order differential equations | 1984-01-01 | Paper |
| Symmetry reduction for nonlinear relativistically invariant equations | 1984-01-01 | Paper |
| Superposition principles for matrix Riccati equations | 1983-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3308739 | 1983-01-01 | Paper |
| Normal forms of elements of classical real and complex Lie and Jordan algebras | 1983-01-01 | Paper |
| Completely integrable relativistic Hamiltonian systems and separation of variables in Hermitian hyperbolic spaces | 1983-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3688669 | 1983-01-01 | Paper |
| Maximal abelian subalgebras of real and complex symplectic Lie algebras | 1983-01-01 | Paper |
| Nonlinear action of Lie groups and superposition principles for nonlinear differential equations | 1982-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3035931 | 1982-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3664101 | 1982-01-01 | Paper |
| Pseudopotentials and Lie symmetries for the generalized nonlinear Schrödinger equation | 1982-01-01 | Paper |
| Group theoretical approach to superposition rules for systems of Riccati equations | 1981-01-01 | Paper |
| Subgroups of Lie groups and separation of variables | 1981-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3944877 | 1981-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3948023 | 1981-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3894121 | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3894122 | 1980-01-01 | Paper |
| Quadratic Hamiltonians in phase space and their eigenstates | 1980-01-01 | Paper |
| Tensor fields invariant under subgroups of the conformal group of space-time | 1978-01-01 | Paper |
| Polynomial irreducible tensors for point groups | 1978-01-01 | Paper |
| The optical group and its subgroups | 1978-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4173530 | 1978-01-01 | Paper |
| Subgroups of the Euclidean group and symmetry breaking in nonrelativistic quantum mechanics | 1977-01-01 | Paper |
| Continuous subgroups of the fundamental groups of physics. III. The de Sitter groups | 1977-01-01 | Paper |
| Subalgebras of real three- and four-dimensional Lie algebras | 1977-01-01 | Paper |
| Symmetry breaking interactions for the time dependent Schrödinger equation | 1976-01-01 | Paper |
| The Group $O(4)$, Separation of Variables and the Hydrogen Atom | 1976-01-01 | Paper |
| Subgroups of the Poincaré group and their invariants | 1976-01-01 | Paper |
| Higher indices of group representations | 1976-01-01 | Paper |
| Invariants of real low dimension Lie algebras | 1976-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4135728 | 1976-01-01 | Paper |
| Everything you always wanted to know about \(SU(3)\subset 0(3)\) | 1975-01-01 | Paper |
| Continuous subgroups of the fundamental groups of physics. I. General method and the Poincaré group | 1975-01-01 | Paper |
| Continuous subgroups of the fundamental groups of physics. II. The similitude group | 1975-01-01 | Paper |
| The maximal solvable subgroups of the SU(p,q) groups and all subgroups of SU(2,1) | 1974-01-01 | Paper |
| The maximal solvable subgroups of SO(p,q) groups | 1974-01-01 | Paper |
| Complete sets of commuting operators and O (3) scalars in the enveloping algebra of SU (3) | 1974-01-01 | Paper |
| Invariant trilinear couplings involving both SU(2) and SU(1, 1) states | 1973-01-01 | Paper |
| A new basis for the representations of the rotation group. Lamé and Heun polynomials | 1973-01-01 | Paper |
| One-Parameter Subgroups of Unitary Groups with Indefinite Metric and in Particular of the Conformal Group | 1971-01-01 | Paper |
| Representations of the Lorentz Group: New Integral Relations between Legendre Functions | 1970-01-01 | Paper |
