TY  - BOOK
AU  - Levi,Decio
TI  - Symmetries and integrability of difference equations / 
T2  - London Mathematical Society lecture note series
SN  - 978-0-521-13658-7 (pbk.)
PY  - 2011///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Ecuaciones en diferencias
KW  - Funciones hipergeométricas
KW  - Simetría (Física)
KW  - Integrales
N1  - Bibliografía : p. 337-341; Machine generated contents note: 1. Lagrangian and Hamiltonian formalism for discrete equations: symmetries and first integrals V. Dorodnitsyn and R. Kozlov; 2. Painleve; equations: continuous, discrete and ultradiscrete B. Grammaticos and A. Ramani; 3. Definitions and predictions of integrability for difference equations J. Hietarinta; 4. Orthogonal polynomials, their recursions, and functional equations M. E. H. Ismail; 5. Discrete Painleve; equations and orthogonal polynomials A. Its; 6. Generalized Lie symmetries for difference equations D. Levi and R. I. Yamilov; 7. Four lectures on discrete systems S. P. Novikov; 8. Lectures on moving frames P. J. Olver; 9. Lattices of compact semisimple Lie groups J. Patera; 10. Lectures on discrete differential geometry Yu. B Suris; 11. Symmetry preserving discretization of differential equations and Lie point symmetries of differential-difference equations P. Winternitz
ER  -