In this paper, by using the G1,1 m,1-system, we study Darboux transformations for space-like isothermic surfaces in Minkowski space Rm'1, where G1,1 m,1=O(m
The order reduction method of the relativistic Birkhoffian equations is studied. For a relativistic autonomous Birkhoffian system, if the conservative law of th
In this letter, a new loop algebra G is constructed, from which a new isospectral problem is established. It follows that integrable couplings of the well-known
Generalizing the idea involved in a previous paper [Commun. Theor. Phys. (Beijing, China) 41 (2004) 685], “quantity in phase space” is introduced. Thus starti
Based on relativistic constituent quark (RCQ) model, the electric and magnetic form factors are analyzed.The ratio of the two form factors for the proton G Ep/