Poslední příspěvky

  • Automorphisms of Ordinary Differential Equations 

    Tryhuk, Václav; Chrastinová, Veronika (Hindawi Publishing Corporation, 2014-01-29)
    The paper deals with the local theory of internal symmetries of underdetermined systems of ordinary differential equations in full generality. The symmetries need not preserve the choice of the independent variable, the ...