| On form-preserving point transformations of partial differential equations JG Kingston, C Sophocleous Journal of Physics A: Mathematical and General 31 (6), 1597, 1998 | 189 | 1998 |
| Enhanced group analysis and conservation laws of variable coefficient reaction–diffusion equations with power nonlinearities OO Vaneeva, AG Johnpillai, RO Popovych, C Sophocleous Journal of Mathematical Analysis and Applications 330 (2), 1363-1386, 2007 | 147 | 2007 |
| Enhanced group analysis and exact solutions of variable coefficient semilinear diffusion equations with a power source OO Vaneeva, RO Popovych, C Sophocleous Acta applicandae mathematicae 106, 1-46, 2009 | 122 | 2009 |
| Extended group analysis of variable coefficient reaction–diffusion equations with exponential nonlinearities OO Vaneeva, RO Popovych, C Sophocleous Journal of Mathematical Analysis and Applications 396 (1), 225-242, 2012 | 112 | 2012 |
| Group analysis of variable coefficient diffusion-convection equations. I. Enhanced group classification NM Ivanova, RO Popovych, C Sophocleous Lobachevskii Journal of mathematics 31, 100-122, 2010 | 90 | 2010 |
| On the group classification of variable-coefficient nonlinear diffusion–convection equations NM Ivanova, C Sophocleous Journal of Computational and Applied Mathematics 197 (2), 322-344, 2006 | 77 | 2006 |
| On point transformations of a generalised Burgers equation JG Kingston, C Sophocleous Physics Letters A 155 (1), 15-19, 1991 | 77 | 1991 |
| Equivalence transformations in the study of integrability OO Vaneeva, RO Popovych, C Sophocleous Physica scripta 89 (3), 038003, 2014 | 64 | 2014 |
| Transformation properties of a variable-coefficient Burgers equation C Sophocleous Chaos, Solitons & Fractals 20 (5), 1047-1057, 2004 | 55 | 2004 |
| Symmetries and form-preserving transformations of one-dimensional wave equations with dissipation JG Kingston, C Sophocleous International journal of non-linear mechanics 36 (6), 987-997, 2001 | 55 | 2001 |
| Potential symmetries of nonlinear diffusion-convection equations C Sophocleous Journal of Physics A Mathematical General 29 (21), 6951-6959, 1996 | 49 | 1996 |
| Enhanced group classification of Gardner equations with time-dependent coefficients O Vaneeva, O Kuriksha, C Sophocleous Communications in Nonlinear Science and Numerical Simulation 22 (1-3), 1243-1251, 2015 | 46 | 2015 |
| Group analysis of nonlinear fin equations OO Vaneeva, AG Johnpillai, RO Popovych, C Sophocleous Applied Mathematics Letters 21 (3), 248-253, 2008 | 44 | 2008 |
| Conservation laws of variable coefficient diffusion-convection equations NM Ivanova, RO Popovych, C Sophocleous arXiv preprint math-ph/0505015, 2005 | 44 | 2005 |
| Classification of potential symmetries of generalised inhomogeneous nonlinear diffusion equations C Sophocleous Physica A: Statistical Mechanics and its Applications 320, 169-183, 2003 | 42 | 2003 |
| Exact solutions of a remarkable fin equation RO Popovych, C Sophocleous, OO Vaneeva Applied Mathematics Letters 21 (3), 209-214, 2008 | 40 | 2008 |
| On shear deformable beam theories: the frequency and normal mode equations of the homogeneous orthotropic Bickford beam KP Soldatos, C Sophocleous Journal of Sound and Vibration 242 (2), 215-245, 2001 | 39 | 2001 |
| Further transformation properties of generalised inhomogeneous nonlinear diffusion equations with variable coefficients C Sophocleous Physica A: Statistical Mechanics and its Applications 345 (3-4), 457-471, 2005 | 38 | 2005 |
| Symmetries of Hamiltonian systems with two degrees of freedom PA Damianou, C Sophocleous Journal of Mathematical Physics 40 (1), 210, 1999 | 38 | 1999 |
| Group analysis of (2+ 1)-and (3+ 1)-dimensional diffusion–convection equations E Demetriou, NM Ivanova, C Sophocleous Journal of mathematical analysis and applications 348 (1), 55-65, 2008 | 37 | 2008 |
Roman O. PopovychSilesian University in Opava, Czech Republic; Institute of Mathematics, NAS of UkraineVerified email at math.slu.cz