Eliminating unknown functions from partial differential equations
- To: mathgroup at smc.vnet.net
- Subject: [mg41039] Eliminating unknown functions from partial differential equations
- From: Stepan Yakovenko <yakovenko at ngs.ru>
- Date: Wed, 30 Apr 2003 04:20:04 -0400 (EDT)
- Reply-to: Stepan Yakovenko <yakovenko at ngs.ru>
- Sender: owner-wri-mathgroup at wolfram.com
Hello all ! Is it possible to eliminate some of unknown functions from a partial differential equation ? For instance : x'[t]=y[t] y'[t]=-x[t] -> x''[t]=-x[t] Thanx in advance. -- Best regards, Stepan mailto:yakovenko at ngs.ru