AUTHOR : Ibragimov N. H. |

1. **Lie Group Analysis of Nonlinear
Problems**

*N.H.Ibragimov
(Research Centre ALGA: Advances in Lie Group Analysis, Department of Health,
Science and Mathematics, Blekinge Institute of Technology, Karlskrona, Sweden)*

2. **Invariants for Generalised
Burgers Equations**

*C.Sophocleous
(Department of Mathematics and Statistics, University of Cyprus, Nicosia,
Cyprus ); N.H.Ibragimov (Research Centre ALGA: Advances in Lie Group Analysis,
Department of Health, Science and Mathematics, Blekinge Institute of
Technology, Karlskrona, Sweden)*

3. **Differential
Invariants for a Class of Nonlinear Wave Equations**

*M.Torrisi,
A.Valenti (Dipartimento di Matematica e Informatica, University of Catania,
Catania, Italy); N.H.Ibragimov (Research Centre ALGA: Advances in Lie Group
Analysis, Department of Health, Science and Mathematics, Blekinge Institute of
Technology, Karlskrona, Sweden)*

4. **Symmetries
of Integro-Differential Equations: Several Classical and New Illustrations**

*V.F.Kovalev
(Institute for Mathematical Modelling RAS, Moscow, Russia); N.H.Ibragimov
(Research Centre ALGA: Advances in Lie Group Analysis, Department of Health,
Science and Mathematics, Blekinge Institute of Technology, Karlskrona, Sweden)*

5. **Group
Classification of a System of Nonlinear Equations Modelling Tumour Growth**

*N.Safstrom,
N.H.Ibragimov (Department of Health, Science and Mathematics, Blekinge
Institute of Technology, Karlskrona, Sweden)*