Volume 1 contains papers written during 1966-1992. The main topics in this volume include Lie group analysis of differential equations, generalized motions in Riemannian spaces, Huygens’ principle, theory of Lie-Bäcklund transformation groups, symmetries in fluid dynamics and mathematical physics.
Volym 1 innehåller artiklar skrivna under åren 1966-1992. Liegruppanalys, differentialekvationer, ickelinjära differentialequationer, symmetrier