First integrals of difference equations which do not possess a variational formulation

✍ Scribed by Winternitz, P.; Dorodnitsyn, V. A.; Kaptsov, E. I.; Kozlov, R. V.

• Book ID: 121800296
• Publisher: SP MAIK Nauka/Interperiodica
• Year: 2014
• Tongue: English
• Weight: 234 KB
• Volume: 89
• Category: Article
• ISSN: 1064-5624
• DOI: 10.1134/S1064562414010360