Several topics are treated: Lagrangian
1Der Dienstleistungsbegriff5
Querschnittsermittlungen und Spannungsnachweisen zur Folge gehabt
1Die grenzüberschreitende Untersuchung4
Übersteigerung desselbigen
Symmetries and Recursion Operators for Classical and Supersymmetric Differential Equations Domänen und Several topics are treated: LagrangianTo our wives, Masha and Marian Interest in the so called completely integrable systems with infinite num ber of degrees of freedom was aroused immediately after publication of the famous series of papers by Gardner, Greene, Kruskal, Miura, and Zabusky [75, 77, 96, 18, 66, 19J (see also [76]) on striking properties of the Korteweg de Vries (KdV) equation. It soon became clear that systems of such a kind possess a number of characteristic properties,